Jeep Cherokee 1990 - not charging
 

Noticed today that my voltmeter was well in the red while driving to the
store. No problem starting yet but only drove 3 km.

This is on a 1990 Jeep Cherokee 4.0L

Something like this happend some years ago and then I had to get a new
alternator. Suspect the same this time, but would like some tips on what to
check before ordering a new alternator or having a mechanic check this out.

I have a battery tester and a multimeter at hand. I plan to first check the
battery with the tester to see if it works ok with load. Then measure
battery volts when the car is not running (should be something like 12V) and
when car is running (should be higher, preferably 14.4V).

Of course I will try cleaning battery connections (Optima red top battery,
some years old).

Anything else I could check?

regards
Odd-Inge Larsen
North Norway

Re: Jeep Cherokee 1990 - not charging
 

Slip-ring brushes wear out on an alternator and are relatively easy to
replace, besides being really cheap. Before giving up any alternator for
dead I check or replace them. Price in the US is about $5.00, about 4
Euros, then add in shipping. The drive belt could be loose too. It should
make a noise if slipping, but sometimes they don't.

If you have a manual and a resistance meter (Ohmmeter) you can figure out
where the slip ring brushes are connected and check for connectivity.
Infinite resistance means the brushes have worn out. I don't know how many
rebuilt or new alternators are sold in the US because these little parts
have worn out.

Good luck,

Earle

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
to
> check before ordering a new alternator or having a mechanic check this
out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
the
> battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
and
> when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: Jeep Cherokee 1990 - not charging
 

Slip-ring brushes wear out on an alternator and are relatively easy to
replace, besides being really cheap. Before giving up any alternator for
dead I check or replace them. Price in the US is about $5.00, about 4
Euros, then add in shipping. The drive belt could be loose too. It should
make a noise if slipping, but sometimes they don't.

If you have a manual and a resistance meter (Ohmmeter) you can figure out
where the slip ring brushes are connected and check for connectivity.
Infinite resistance means the brushes have worn out. I don't know how many
rebuilt or new alternators are sold in the US because these little parts
have worn out.

Good luck,

Earle

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
to
> check before ordering a new alternator or having a mechanic check this
out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
the
> battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
and
> when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: Jeep Cherokee 1990 - not charging
 

Slip-ring brushes wear out on an alternator and are relatively easy to
replace, besides being really cheap. Before giving up any alternator for
dead I check or replace them. Price in the US is about $5.00, about 4
Euros, then add in shipping. The drive belt could be loose too. It should
make a noise if slipping, but sometimes they don't.

If you have a manual and a resistance meter (Ohmmeter) you can figure out
where the slip ring brushes are connected and check for connectivity.
Infinite resistance means the brushes have worn out. I don't know how many
rebuilt or new alternators are sold in the US because these little parts
have worn out.

Good luck,

Earle

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
to
> check before ordering a new alternator or having a mechanic check this
out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
the
> battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
and
> when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: Jeep Cherokee 1990 - not charging
 

Slip-ring brushes wear out on an alternator and are relatively easy to
replace, besides being really cheap. Before giving up any alternator for
dead I check or replace them. Price in the US is about $5.00, about 4
Euros, then add in shipping. The drive belt could be loose too. It should
make a noise if slipping, but sometimes they don't.

If you have a manual and a resistance meter (Ohmmeter) you can figure out
where the slip ring brushes are connected and check for connectivity.
Infinite resistance means the brushes have worn out. I don't know how many
rebuilt or new alternators are sold in the US because these little parts
have worn out.

Good luck,

Earle

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
to
> check before ordering a new alternator or having a mechanic check this
out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
the
> battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
and
> when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: Jeep Cherokee 1990 - not charging
 

Jepp, brushes was in my mind to. Had to change brushes on my starter motor
just a few months ago and that cured it from not turning. Real cheap and
easy fix I must say. Problem I guess is finding out what type of alternator
I have. How many amps and so on.

Maybe I could try tapping the alternator lightly to see if the bruses make
contact again. If so I could be pretty shure that this is the problem.

Good idea to check drive belt slipping. Will do that.

thanks
Odd-Inge


"Earle Horton" <el_anglo_burgues@usa.com> wrote in message
news:467dd733$0$16387$88260bb3@free.teranews.com.. .
> Slip-ring brushes wear out on an alternator and are relatively easy to
> replace, besides being really cheap. Before giving up any alternator for
> dead I check or replace them. Price in the US is about $5.00, about 4
> Euros, then add in shipping. The drive belt could be loose too. It
> should
> make a noise if slipping, but sometimes they don't.
>
> If you have a manual and a resistance meter (Ohmmeter) you can figure out
> where the slip ring brushes are connected and check for connectivity.
> Infinite resistance means the brushes have worn out. I don't know how
> many
> rebuilt or new alternators are sold in the US because these little parts
> have worn out.
>
> Good luck,
>
> Earle
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
> to
>> check before ordering a new alternator or having a mechanic check this
> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
> the
>> battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
> and
>> when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top
>> battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>>
>
>
>
> --
> Posted via a free Usenet account from http://www.teranews.com
>

Re: Jeep Cherokee 1990 - not charging
 

Jepp, brushes was in my mind to. Had to change brushes on my starter motor
just a few months ago and that cured it from not turning. Real cheap and
easy fix I must say. Problem I guess is finding out what type of alternator
I have. How many amps and so on.

Maybe I could try tapping the alternator lightly to see if the bruses make
contact again. If so I could be pretty shure that this is the problem.

Good idea to check drive belt slipping. Will do that.

thanks
Odd-Inge


"Earle Horton" <el_anglo_burgues@usa.com> wrote in message
news:467dd733$0$16387$88260bb3@free.teranews.com.. .
> Slip-ring brushes wear out on an alternator and are relatively easy to
> replace, besides being really cheap. Before giving up any alternator for
> dead I check or replace them. Price in the US is about $5.00, about 4
> Euros, then add in shipping. The drive belt could be loose too. It
> should
> make a noise if slipping, but sometimes they don't.
>
> If you have a manual and a resistance meter (Ohmmeter) you can figure out
> where the slip ring brushes are connected and check for connectivity.
> Infinite resistance means the brushes have worn out. I don't know how
> many
> rebuilt or new alternators are sold in the US because these little parts
> have worn out.
>
> Good luck,
>
> Earle
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
> to
>> check before ordering a new alternator or having a mechanic check this
> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
> the
>> battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
> and
>> when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top
>> battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>>
>
>
>
> --
> Posted via a free Usenet account from http://www.teranews.com
>

Re: Jeep Cherokee 1990 - not charging
 

Jepp, brushes was in my mind to. Had to change brushes on my starter motor
just a few months ago and that cured it from not turning. Real cheap and
easy fix I must say. Problem I guess is finding out what type of alternator
I have. How many amps and so on.

Maybe I could try tapping the alternator lightly to see if the bruses make
contact again. If so I could be pretty shure that this is the problem.

Good idea to check drive belt slipping. Will do that.

thanks
Odd-Inge


"Earle Horton" <el_anglo_burgues@usa.com> wrote in message
news:467dd733$0$16387$88260bb3@free.teranews.com.. .
> Slip-ring brushes wear out on an alternator and are relatively easy to
> replace, besides being really cheap. Before giving up any alternator for
> dead I check or replace them. Price in the US is about $5.00, about 4
> Euros, then add in shipping. The drive belt could be loose too. It
> should
> make a noise if slipping, but sometimes they don't.
>
> If you have a manual and a resistance meter (Ohmmeter) you can figure out
> where the slip ring brushes are connected and check for connectivity.
> Infinite resistance means the brushes have worn out. I don't know how
> many
> rebuilt or new alternators are sold in the US because these little parts
> have worn out.
>
> Good luck,
>
> Earle
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
> to
>> check before ordering a new alternator or having a mechanic check this
> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
> the
>> battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
> and
>> when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top
>> battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>>
>
>
>
> --
> Posted via a free Usenet account from http://www.teranews.com
>

Re: Jeep Cherokee 1990 - not charging
 

Jepp, brushes was in my mind to. Had to change brushes on my starter motor
just a few months ago and that cured it from not turning. Real cheap and
easy fix I must say. Problem I guess is finding out what type of alternator
I have. How many amps and so on.

Maybe I could try tapping the alternator lightly to see if the bruses make
contact again. If so I could be pretty shure that this is the problem.

Good idea to check drive belt slipping. Will do that.

thanks
Odd-Inge


"Earle Horton" <el_anglo_burgues@usa.com> wrote in message
news:467dd733$0$16387$88260bb3@free.teranews.com.. .
> Slip-ring brushes wear out on an alternator and are relatively easy to
> replace, besides being really cheap. Before giving up any alternator for
> dead I check or replace them. Price in the US is about $5.00, about 4
> Euros, then add in shipping. The drive belt could be loose too. It
> should
> make a noise if slipping, but sometimes they don't.
>
> If you have a manual and a resistance meter (Ohmmeter) you can figure out
> where the slip ring brushes are connected and check for connectivity.
> Infinite resistance means the brushes have worn out. I don't know how
> many
> rebuilt or new alternators are sold in the US because these little parts
> have worn out.
>
> Good luck,
>
> Earle
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
> to
>> check before ordering a new alternator or having a mechanic check this
> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
> the
>> battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
> and
>> when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top
>> battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>>
>
>
>
> --
> Posted via a free Usenet account from http://www.teranews.com
>

Re: Jeep Cherokee 1990 - not charging
 

I am a bit unsure now. Checked every connection and found no problems there.
Cleaned battery connections but they looked ok.



Measured only 11.53 Volts on the battery when car not running. It dropped to
11.23 when car was running. Battery tester showed battery as "weak".



Checked another battery in my tractor and it measured 12.2 Volts not running
and battery tester showed "Good".



Voltmeter in car shows some charging, borderline red mark.



Attached a battery charger and it seems to struggle a bit putting some juice
into the battery. On its lowest setting the meter shows about 10 amps and
that's a bit abnormal. I tried this also with battery disconnected from car
but no difference.



The battery in my car is a Sonnak Exide, same technology as Optima. It is
maybe 6-8 years old. Battery in my tractor is an Optima red top.


regards
Odd-Inge



"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

I am a bit unsure now. Checked every connection and found no problems there.
Cleaned battery connections but they looked ok.



Measured only 11.53 Volts on the battery when car not running. It dropped to
11.23 when car was running. Battery tester showed battery as "weak".



Checked another battery in my tractor and it measured 12.2 Volts not running
and battery tester showed "Good".



Voltmeter in car shows some charging, borderline red mark.



Attached a battery charger and it seems to struggle a bit putting some juice
into the battery. On its lowest setting the meter shows about 10 amps and
that's a bit abnormal. I tried this also with battery disconnected from car
but no difference.



The battery in my car is a Sonnak Exide, same technology as Optima. It is
maybe 6-8 years old. Battery in my tractor is an Optima red top.


regards
Odd-Inge



"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

I am a bit unsure now. Checked every connection and found no problems there.
Cleaned battery connections but they looked ok.



Measured only 11.53 Volts on the battery when car not running. It dropped to
11.23 when car was running. Battery tester showed battery as "weak".



Checked another battery in my tractor and it measured 12.2 Volts not running
and battery tester showed "Good".



Voltmeter in car shows some charging, borderline red mark.



Attached a battery charger and it seems to struggle a bit putting some juice
into the battery. On its lowest setting the meter shows about 10 amps and
that's a bit abnormal. I tried this also with battery disconnected from car
but no difference.



The battery in my car is a Sonnak Exide, same technology as Optima. It is
maybe 6-8 years old. Battery in my tractor is an Optima red top.


regards
Odd-Inge



"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

I am a bit unsure now. Checked every connection and found no problems there.
Cleaned battery connections but they looked ok.



Measured only 11.53 Volts on the battery when car not running. It dropped to
11.23 when car was running. Battery tester showed battery as "weak".



Checked another battery in my tractor and it measured 12.2 Volts not running
and battery tester showed "Good".



Voltmeter in car shows some charging, borderline red mark.



Attached a battery charger and it seems to struggle a bit putting some juice
into the battery. On its lowest setting the meter shows about 10 amps and
that's a bit abnormal. I tried this also with battery disconnected from car
but no difference.



The battery in my car is a Sonnak Exide, same technology as Optima. It is
maybe 6-8 years old. Battery in my tractor is an Optima red top.


regards
Odd-Inge



"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

I did charge the battery. Seems ok now. Probably just low due to alternator
failing.

Did try to knock on the alternator with a rubber mallet. This probably moved
the brushes some and the voltmeter jumped to about 14 volts, its normal
position. But it fluctuated a great deal and the interior lights flickered a
lot. Revved it up and it was not able to charge anymore. Let off the
throttle and it charged again.

My diagnoses: Worn brushes in the alternator. Replace brushes or by new
alternator.

Does this seem like a reasonable diagnosis?

regards
Odd-Inge

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

I did charge the battery. Seems ok now. Probably just low due to alternator
failing.

Did try to knock on the alternator with a rubber mallet. This probably moved
the brushes some and the voltmeter jumped to about 14 volts, its normal
position. But it fluctuated a great deal and the interior lights flickered a
lot. Revved it up and it was not able to charge anymore. Let off the
throttle and it charged again.

My diagnoses: Worn brushes in the alternator. Replace brushes or by new
alternator.

Does this seem like a reasonable diagnosis?

regards
Odd-Inge

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

I did charge the battery. Seems ok now. Probably just low due to alternator
failing.

Did try to knock on the alternator with a rubber mallet. This probably moved
the brushes some and the voltmeter jumped to about 14 volts, its normal
position. But it fluctuated a great deal and the interior lights flickered a
lot. Revved it up and it was not able to charge anymore. Let off the
throttle and it charged again.

My diagnoses: Worn brushes in the alternator. Replace brushes or by new
alternator.

Does this seem like a reasonable diagnosis?

regards
Odd-Inge

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

I did charge the battery. Seems ok now. Probably just low due to alternator
failing.

Did try to knock on the alternator with a rubber mallet. This probably moved
the brushes some and the voltmeter jumped to about 14 volts, its normal
position. But it fluctuated a great deal and the interior lights flickered a
lot. Revved it up and it was not able to charge anymore. Let off the
throttle and it charged again.

My diagnoses: Worn brushes in the alternator. Replace brushes or by new
alternator.

Does this seem like a reasonable diagnosis?

regards
Odd-Inge

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

Yup, the mallet trick sometimes tells all.

Hopefully you got it before the slip rings got damaged.

I would do one more test just to see if the mallet did something else.
I would run a battery booster cable from the battery negative to the
alternator case and see if the charging goes stable. If so, the
alternator case would have a bad ground that the hit moved slightly. It
is a sneaky one, but seems to happen on Jeeps a lot.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Odd-Inge Larsen wrote:
> I did charge the battery. Seems ok now. Probably just low due to alternator
> failing.
>
> Did try to knock on the alternator with a rubber mallet. This probably moved
> the brushes some and the voltmeter jumped to about 14 volts, its normal
> position. But it fluctuated a great deal and the interior lights flickered a
> lot. Revved it up and it was not able to charge anymore. Let off the
> throttle and it charged again.
>
> My diagnoses: Worn brushes in the alternator. Replace brushes or by new
> alternator.
>
> Does this seem like a reasonable diagnosis?
>
> regards
> Odd-Inge
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
>> to check before ordering a new alternator or having a mechanic check this
>> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
>> the battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
>> and when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>
>

Re: Jeep Cherokee 1990 - not charging
 

Yup, the mallet trick sometimes tells all.

Hopefully you got it before the slip rings got damaged.

I would do one more test just to see if the mallet did something else.
I would run a battery booster cable from the battery negative to the
alternator case and see if the charging goes stable. If so, the
alternator case would have a bad ground that the hit moved slightly. It
is a sneaky one, but seems to happen on Jeeps a lot.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Odd-Inge Larsen wrote:
> I did charge the battery. Seems ok now. Probably just low due to alternator
> failing.
>
> Did try to knock on the alternator with a rubber mallet. This probably moved
> the brushes some and the voltmeter jumped to about 14 volts, its normal
> position. But it fluctuated a great deal and the interior lights flickered a
> lot. Revved it up and it was not able to charge anymore. Let off the
> throttle and it charged again.
>
> My diagnoses: Worn brushes in the alternator. Replace brushes or by new
> alternator.
>
> Does this seem like a reasonable diagnosis?
>
> regards
> Odd-Inge
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
>> to check before ordering a new alternator or having a mechanic check this
>> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
>> the battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
>> and when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>
>

Re: Jeep Cherokee 1990 - not charging
 

Yup, the mallet trick sometimes tells all.

Hopefully you got it before the slip rings got damaged.

I would do one more test just to see if the mallet did something else.
I would run a battery booster cable from the battery negative to the
alternator case and see if the charging goes stable. If so, the
alternator case would have a bad ground that the hit moved slightly. It
is a sneaky one, but seems to happen on Jeeps a lot.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Odd-Inge Larsen wrote:
> I did charge the battery. Seems ok now. Probably just low due to alternator
> failing.
>
> Did try to knock on the alternator with a rubber mallet. This probably moved
> the brushes some and the voltmeter jumped to about 14 volts, its normal
> position. But it fluctuated a great deal and the interior lights flickered a
> lot. Revved it up and it was not able to charge anymore. Let off the
> throttle and it charged again.
>
> My diagnoses: Worn brushes in the alternator. Replace brushes or by new
> alternator.
>
> Does this seem like a reasonable diagnosis?
>
> regards
> Odd-Inge
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
>> to check before ordering a new alternator or having a mechanic check this
>> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
>> the battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
>> and when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>
>

Re: Jeep Cherokee 1990 - not charging
 

Yup, the mallet trick sometimes tells all.

Hopefully you got it before the slip rings got damaged.

I would do one more test just to see if the mallet did something else.
I would run a battery booster cable from the battery negative to the
alternator case and see if the charging goes stable. If so, the
alternator case would have a bad ground that the hit moved slightly. It
is a sneaky one, but seems to happen on Jeeps a lot.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Odd-Inge Larsen wrote:
> I did charge the battery. Seems ok now. Probably just low due to alternator
> failing.
>
> Did try to knock on the alternator with a rubber mallet. This probably moved
> the brushes some and the voltmeter jumped to about 14 volts, its normal
> position. But it fluctuated a great deal and the interior lights flickered a
> lot. Revved it up and it was not able to charge anymore. Let off the
> throttle and it charged again.
>
> My diagnoses: Worn brushes in the alternator. Replace brushes or by new
> alternator.
>
> Does this seem like a reasonable diagnosis?
>
> regards
> Odd-Inge
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
>> to check before ordering a new alternator or having a mechanic check this
>> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
>> the battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
>> and when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>
>

Re: Jeep Cherokee 1990 - not charging
 

Tried the cable trick. Made no difference.
As it is difficult to get new brushes where I live and the label on the
alternator can not be read without removing alternator I ordered a new
alternator. Also one could never know if anything else was damaged inside.

Dealer wanted nkr 4041,- for the original part and it had to be shipped from
Germany.
Found a new 100A (in stock) at a store located at the norwegian Amcar club
for nkr 1763,- included VAT and shipping. (aprox US$ 271)

Hope to have it fixed later this week if all goes well. Thanks for the help
guys.

Odd-Inge

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:467e8e71$0$11813$9a6e19ea@unlimited.newshosti ng.com...
> Yup, the mallet trick sometimes tells all.
>
> Hopefully you got it before the slip rings got damaged.
>
> I would do one more test just to see if the mallet did something else. I
> would run a battery booster cable from the battery negative to the
> alternator case and see if the charging goes stable. If so, the
> alternator case would have a bad ground that the hit moved slightly. It
> is a sneaky one, but seems to happen on Jeeps a lot.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> Odd-Inge Larsen wrote:
>> I did charge the battery. Seems ok now. Probably just low due to
>> alternator failing.
>>
>> Did try to knock on the alternator with a rubber mallet. This probably
>> moved the brushes some and the voltmeter jumped to about 14 volts, its
>> normal position. But it fluctuated a great deal and the interior lights
>> flickered a lot. Revved it up and it was not able to charge anymore. Let
>> off the throttle and it charged again.
>>
>> My diagnoses: Worn brushes in the alternator. Replace brushes or by new
>> alternator.
>>
>> Does this seem like a reasonable diagnosis?
>>
>> regards
>> Odd-Inge
>>
>> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
>> news:f5k6hg$ckd$1@troll.powertech.no...
>>> Noticed today that my voltmeter was well in the red while driving to the
>>> store. No problem starting yet but only drove 3 km.
>>>
>>> This is on a 1990 Jeep Cherokee 4.0L
>>>
>>> Something like this happend some years ago and then I had to get a new
>>> alternator. Suspect the same this time, but would like some tips on what
>>> to check before ordering a new alternator or having a mechanic check
>>> this out.
>>>
>>> I have a battery tester and a multimeter at hand. I plan to first check
>>> the battery with the tester to see if it works ok with load. Then
>>> measure battery volts when the car is not running (should be something
>>> like 12V) and when car is running (should be higher, preferably 14.4V).
>>>
>>> Of course I will try cleaning battery connections (Optima red top
>>> battery, some years old).
>>>
>>> Anything else I could check?
>>>
>>> regards
>>> Odd-Inge Larsen
>>> North Norway
>>>
>>

Re: Jeep Cherokee 1990 - not charging
 

Tried the cable trick. Made no difference.
As it is difficult to get new brushes where I live and the label on the
alternator can not be read without removing alternator I ordered a new
alternator. Also one could never know if anything else was damaged inside.

Dealer wanted nkr 4041,- for the original part and it had to be shipped from
Germany.
Found a new 100A (in stock) at a store located at the norwegian Amcar club
for nkr 1763,- included VAT and shipping. (aprox US$ 271)

Hope to have it fixed later this week if all goes well. Thanks for the help
guys.

Odd-Inge

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:467e8e71$0$11813$9a6e19ea@unlimited.newshosti ng.com...
> Yup, the mallet trick sometimes tells all.
>
> Hopefully you got it before the slip rings got damaged.
>
> I would do one more test just to see if the mallet did something else. I
> would run a battery booster cable from the battery negative to the
> alternator case and see if the charging goes stable. If so, the
> alternator case would have a bad ground that the hit moved slightly. It
> is a sneaky one, but seems to happen on Jeeps a lot.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> Odd-Inge Larsen wrote:
>> I did charge the battery. Seems ok now. Probably just low due to
>> alternator failing.
>>
>> Did try to knock on the alternator with a rubber mallet. This probably
>> moved the brushes some and the voltmeter jumped to about 14 volts, its
>> normal position. But it fluctuated a great deal and the interior lights
>> flickered a lot. Revved it up and it was not able to charge anymore. Let
>> off the throttle and it charged again.
>>
>> My diagnoses: Worn brushes in the alternator. Replace brushes or by new
>> alternator.
>>
>> Does this seem like a reasonable diagnosis?
>>
>> regards
>> Odd-Inge
>>
>> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
>> news:f5k6hg$ckd$1@troll.powertech.no...
>>> Noticed today that my voltmeter was well in the red while driving to the
>>> store. No problem starting yet but only drove 3 km.
>>>
>>> This is on a 1990 Jeep Cherokee 4.0L
>>>
>>> Something like this happend some years ago and then I had to get a new
>>> alternator. Suspect the same this time, but would like some tips on what
>>> to check before ordering a new alternator or having a mechanic check
>>> this out.
>>>
>>> I have a battery tester and a multimeter at hand. I plan to first check
>>> the battery with the tester to see if it works ok with load. Then
>>> measure battery volts when the car is not running (should be something
>>> like 12V) and when car is running (should be higher, preferably 14.4V).
>>>
>>> Of course I will try cleaning battery connections (Optima red top
>>> battery, some years old).
>>>
>>> Anything else I could check?
>>>
>>> regards
>>> Odd-Inge Larsen
>>> North Norway
>>>
>>

Re: Jeep Cherokee 1990 - not charging
 

Tried the cable trick. Made no difference.
As it is difficult to get new brushes where I live and the label on the
alternator can not be read without removing alternator I ordered a new
alternator. Also one could never know if anything else was damaged inside.

Dealer wanted nkr 4041,- for the original part and it had to be shipped from
Germany.
Found a new 100A (in stock) at a store located at the norwegian Amcar club
for nkr 1763,- included VAT and shipping. (aprox US$ 271)

Hope to have it fixed later this week if all goes well. Thanks for the help
guys.

Odd-Inge

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:467e8e71$0$11813$9a6e19ea@unlimited.newshosti ng.com...
> Yup, the mallet trick sometimes tells all.
>
> Hopefully you got it before the slip rings got damaged.
>
> I would do one more test just to see if the mallet did something else. I
> would run a battery booster cable from the battery negative to the
> alternator case and see if the charging goes stable. If so, the
> alternator case would have a bad ground that the hit moved slightly. It
> is a sneaky one, but seems to happen on Jeeps a lot.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> Odd-Inge Larsen wrote:
>> I did charge the battery. Seems ok now. Probably just low due to
>> alternator failing.
>>
>> Did try to knock on the alternator with a rubber mallet. This probably
>> moved the brushes some and the voltmeter jumped to about 14 volts, its
>> normal position. But it fluctuated a great deal and the interior lights
>> flickered a lot. Revved it up and it was not able to charge anymore. Let
>> off the throttle and it charged again.
>>
>> My diagnoses: Worn brushes in the alternator. Replace brushes or by new
>> alternator.
>>
>> Does this seem like a reasonable diagnosis?
>>
>> regards
>> Odd-Inge
>>
>> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
>> news:f5k6hg$ckd$1@troll.powertech.no...
>>> Noticed today that my voltmeter was well in the red while driving to the
>>> store. No problem starting yet but only drove 3 km.
>>>
>>> This is on a 1990 Jeep Cherokee 4.0L
>>>
>>> Something like this happend some years ago and then I had to get a new
>>> alternator. Suspect the same this time, but would like some tips on what
>>> to check before ordering a new alternator or having a mechanic check
>>> this out.
>>>
>>> I have a battery tester and a multimeter at hand. I plan to first check
>>> the battery with the tester to see if it works ok with load. Then
>>> measure battery volts when the car is not running (should be something
>>> like 12V) and when car is running (should be higher, preferably 14.4V).
>>>
>>> Of course I will try cleaning battery connections (Optima red top
>>> battery, some years old).
>>>
>>> Anything else I could check?
>>>
>>> regards
>>> Odd-Inge Larsen
>>> North Norway
>>>
>>

Re: Jeep Cherokee 1990 - not charging
 

Tried the cable trick. Made no difference.
As it is difficult to get new brushes where I live and the label on the
alternator can not be read without removing alternator I ordered a new
alternator. Also one could never know if anything else was damaged inside.

Dealer wanted nkr 4041,- for the original part and it had to be shipped from
Germany.
Found a new 100A (in stock) at a store located at the norwegian Amcar club
for nkr 1763,- included VAT and shipping. (aprox US$ 271)

Hope to have it fixed later this week if all goes well. Thanks for the help
guys.

Odd-Inge

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:467e8e71$0$11813$9a6e19ea@unlimited.newshosti ng.com...
> Yup, the mallet trick sometimes tells all.
>
> Hopefully you got it before the slip rings got damaged.
>
> I would do one more test just to see if the mallet did something else. I
> would run a battery booster cable from the battery negative to the
> alternator case and see if the charging goes stable. If so, the
> alternator case would have a bad ground that the hit moved slightly. It
> is a sneaky one, but seems to happen on Jeeps a lot.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> Odd-Inge Larsen wrote:
>> I did charge the battery. Seems ok now. Probably just low due to
>> alternator failing.
>>
>> Did try to knock on the alternator with a rubber mallet. This probably
>> moved the brushes some and the voltmeter jumped to about 14 volts, its
>> normal position. But it fluctuated a great deal and the interior lights
>> flickered a lot. Revved it up and it was not able to charge anymore. Let
>> off the throttle and it charged again.
>>
>> My diagnoses: Worn brushes in the alternator. Replace brushes or by new
>> alternator.
>>
>> Does this seem like a reasonable diagnosis?
>>
>> regards
>> Odd-Inge
>>
>> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
>> news:f5k6hg$ckd$1@troll.powertech.no...
>>> Noticed today that my voltmeter was well in the red while driving to the
>>> store. No problem starting yet but only drove 3 km.
>>>
>>> This is on a 1990 Jeep Cherokee 4.0L
>>>
>>> Something like this happend some years ago and then I had to get a new
>>> alternator. Suspect the same this time, but would like some tips on what
>>> to check before ordering a new alternator or having a mechanic check
>>> this out.
>>>
>>> I have a battery tester and a multimeter at hand. I plan to first check
>>> the battery with the tester to see if it works ok with load. Then
>>> measure battery volts when the car is not running (should be something
>>> like 12V) and when car is running (should be higher, preferably 14.4V).
>>>
>>> Of course I will try cleaning battery connections (Optima red top
>>> battery, some years old).
>>>
>>> Anything else I could check?
>>>
>>> regards
>>> Odd-Inge Larsen
>>> North Norway
>>>
>>

Re: Jeep Cherokee 1990 - not charging
 

On Jun 23, 3:23 pm, "Odd-Inge Larsen" <oddingelar...@dcpost.no> wrote:
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what to
> check before ordering a new alternator or having a mechanic check this out.
>
> I have a battery tester and a multimeter at hand. I plan to first check the
> battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V) and
> when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway

Make sure the exciter wire has a good connection, it's the small one
going to the alt.......Have a good day

Re: Jeep Cherokee 1990 - not charging
 

On Jun 23, 3:23 pm, "Odd-Inge Larsen" <oddingelar...@dcpost.no> wrote:
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what to
> check before ordering a new alternator or having a mechanic check this out.
>
> I have a battery tester and a multimeter at hand. I plan to first check the
> battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V) and
> when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway

Make sure the exciter wire has a good connection, it's the small one
going to the alt.......Have a good day

Re: Jeep Cherokee 1990 - not charging
 

On Jun 23, 3:23 pm, "Odd-Inge Larsen" <oddingelar...@dcpost.no> wrote:
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what to
> check before ordering a new alternator or having a mechanic check this out.
>
> I have a battery tester and a multimeter at hand. I plan to first check the
> battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V) and
> when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway

Make sure the exciter wire has a good connection, it's the small one
going to the alt.......Have a good day

Re: Jeep Cherokee 1990 - not charging
 

On Jun 23, 3:23 pm, "Odd-Inge Larsen" <oddingelar...@dcpost.no> wrote:
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what to
> check before ordering a new alternator or having a mechanic check this out.
>
> I have a battery tester and a multimeter at hand. I plan to first check the
> battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V) and
> when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway

Make sure the exciter wire has a good connection, it's the small one
going to the alt.......Have a good day

Re: Jeep Cherokee 1990 - not charging
 

Have now changed alternator. Bits was falling out of the old one when I took
it out. Something had smashed the internal cooling fan blades.
The new one is working fine. Charging around 14 volts again :-) And much
more quiet.

Odd-Inge

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

Have now changed alternator. Bits was falling out of the old one when I took
it out. Something had smashed the internal cooling fan blades.
The new one is working fine. Charging around 14 volts again :-) And much
more quiet.

Odd-Inge

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

Have now changed alternator. Bits was falling out of the old one when I took
it out. Something had smashed the internal cooling fan blades.
The new one is working fine. Charging around 14 volts again :-) And much
more quiet.

Odd-Inge

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

Have now changed alternator. Bits was falling out of the old one when I took
it out. Something had smashed the internal cooling fan blades.
The new one is working fine. Charging around 14 volts again :-) And much
more quiet.

Odd-Inge

"Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
news:f5k6hg$ckd$1@troll.powertech.no...
> Noticed today that my voltmeter was well in the red while driving to the
> store. No problem starting yet but only drove 3 km.
>
> This is on a 1990 Jeep Cherokee 4.0L
>
> Something like this happend some years ago and then I had to get a new
> alternator. Suspect the same this time, but would like some tips on what
> to check before ordering a new alternator or having a mechanic check this
> out.
>
> I have a battery tester and a multimeter at hand. I plan to first check
> the battery with the tester to see if it works ok with load. Then measure
> battery volts when the car is not running (should be something like 12V)
> and when car is running (should be higher, preferably 14.4V).
>
> Of course I will try cleaning battery connections (Optima red top battery,
> some years old).
>
> Anything else I could check?
>
> regards
> Odd-Inge Larsen
> North Norway
>

Re: Jeep Cherokee 1990 - not charging
 

Thanks for the follow up!

Mike

Odd-Inge Larsen wrote:
> Have now changed alternator. Bits was falling out of the old one when I took
> it out. Something had smashed the internal cooling fan blades.
> The new one is working fine. Charging around 14 volts again :-) And much
> more quiet.
>
> Odd-Inge
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
>> to check before ordering a new alternator or having a mechanic check this
>> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
>> the battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
>> and when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>
>

Re: Jeep Cherokee 1990 - not charging
 

Thanks for the follow up!

Mike

Odd-Inge Larsen wrote:
> Have now changed alternator. Bits was falling out of the old one when I took
> it out. Something had smashed the internal cooling fan blades.
> The new one is working fine. Charging around 14 volts again :-) And much
> more quiet.
>
> Odd-Inge
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
>> to check before ordering a new alternator or having a mechanic check this
>> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
>> the battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
>> and when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>
>

Re: Jeep Cherokee 1990 - not charging
 

Thanks for the follow up!

Mike

Odd-Inge Larsen wrote:
> Have now changed alternator. Bits was falling out of the old one when I took
> it out. Something had smashed the internal cooling fan blades.
> The new one is working fine. Charging around 14 volts again :-) And much
> more quiet.
>
> Odd-Inge
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
>> to check before ordering a new alternator or having a mechanic check this
>> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
>> the battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
>> and when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>
>

Re: Jeep Cherokee 1990 - not charging
 

Thanks for the follow up!

Mike

Odd-Inge Larsen wrote:
> Have now changed alternator. Bits was falling out of the old one when I took
> it out. Something had smashed the internal cooling fan blades.
> The new one is working fine. Charging around 14 volts again :-) And much
> more quiet.
>
> Odd-Inge
>
> "Odd-Inge Larsen" <oddingelarsen@dcpost.no> wrote in message
> news:f5k6hg$ckd$1@troll.powertech.no...
>> Noticed today that my voltmeter was well in the red while driving to the
>> store. No problem starting yet but only drove 3 km.
>>
>> This is on a 1990 Jeep Cherokee 4.0L
>>
>> Something like this happend some years ago and then I had to get a new
>> alternator. Suspect the same this time, but would like some tips on what
>> to check before ordering a new alternator or having a mechanic check this
>> out.
>>
>> I have a battery tester and a multimeter at hand. I plan to first check
>> the battery with the tester to see if it works ok with load. Then measure
>> battery volts when the car is not running (should be something like 12V)
>> and when car is running (should be higher, preferably 14.4V).
>>
>> Of course I will try cleaning battery connections (Optima red top battery,
>> some years old).
>>
>> Anything else I could check?
>>
>> regards
>> Odd-Inge Larsen
>> North Norway
>>
>
>