High Setting on Blower Doesn't Work (97 Jeep)
 

x-no-archive: yes

Hi all,

I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
conditioning.

For about two years now, the highest setting on my heater (fan) blower
does not work. The other three settings work fine.

Any ideas?

Thanks
KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

The fans in the YJ have a resistor circuit hidden in the fan ducting
and I would suspect that you have a problem with the wiring or the
resistor coils. To test this theory connect the fan lead to a 12V feed
right from the battery and see if you get full speed from the fan if
so you need to inspect the resistor coil. To get at it remove the
housing just below the passenger side speaker and take a look up
inside the housing or just wire your fan to a 12v source and live with
high speed all the time.


On Wed, 31 Dec 2003 04:02:13 GMT, KL (1k2l3r4@mindspring.com) wrote:

>x-no-archive: yes
>
>Hi all,
>
>I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
>conditioning.
>
>For about two years now, the highest setting on my heater (fan) blower
>does not work. The other three settings work fine.
>
>Any ideas?
>
>Thanks
>KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

The fans in the YJ have a resistor circuit hidden in the fan ducting
and I would suspect that you have a problem with the wiring or the
resistor coils. To test this theory connect the fan lead to a 12V feed
right from the battery and see if you get full speed from the fan if
so you need to inspect the resistor coil. To get at it remove the
housing just below the passenger side speaker and take a look up
inside the housing or just wire your fan to a 12v source and live with
high speed all the time.


On Wed, 31 Dec 2003 04:02:13 GMT, KL (1k2l3r4@mindspring.com) wrote:

>x-no-archive: yes
>
>Hi all,
>
>I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
>conditioning.
>
>For about two years now, the highest setting on my heater (fan) blower
>does not work. The other three settings work fine.
>
>Any ideas?
>
>Thanks
>KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

The fans in the YJ have a resistor circuit hidden in the fan ducting
and I would suspect that you have a problem with the wiring or the
resistor coils. To test this theory connect the fan lead to a 12V feed
right from the battery and see if you get full speed from the fan if
so you need to inspect the resistor coil. To get at it remove the
housing just below the passenger side speaker and take a look up
inside the housing or just wire your fan to a 12v source and live with
high speed all the time.


On Wed, 31 Dec 2003 04:02:13 GMT, KL (1k2l3r4@mindspring.com) wrote:

>x-no-archive: yes
>
>Hi all,
>
>I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
>conditioning.
>
>For about two years now, the highest setting on my heater (fan) blower
>does not work. The other three settings work fine.
>
>Any ideas?
>
>Thanks
>KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Fuse number 11 in the Power Distribution Center:
http://www.----------.com/resistor.htm The PDC is located under the
hood, in the box next to the battery.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/resistor.htm

"1k2l3r4@mindspring.com" wrote:
>
> x-no-archive: yes
>
> Hi all,
>
> I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
> conditioning.
>
> For about two years now, the highest setting on my heater (fan) blower
> does not work. The other three settings work fine.
>
> Any ideas?
>
> Thanks
> KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Fuse number 11 in the Power Distribution Center:
http://www.----------.com/resistor.htm The PDC is located under the
hood, in the box next to the battery.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/resistor.htm

"1k2l3r4@mindspring.com" wrote:
>
> x-no-archive: yes
>
> Hi all,
>
> I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
> conditioning.
>
> For about two years now, the highest setting on my heater (fan) blower
> does not work. The other three settings work fine.
>
> Any ideas?
>
> Thanks
> KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Fuse number 11 in the Power Distribution Center:
http://www.----------.com/resistor.htm The PDC is located under the
hood, in the box next to the battery.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/resistor.htm

"1k2l3r4@mindspring.com" wrote:
>
> x-no-archive: yes
>
> Hi all,
>
> I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
> conditioning.
>
> For about two years now, the highest setting on my heater (fan) blower
> does not work. The other three settings work fine.
>
> Any ideas?
>
> Thanks
> KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Sorry what I said earlier may not apply to your vehicle I sped read
the post and my mind saw 87 Wrangler when you of course were looking
for info on your 97 Wrangler.
>>
>> x-no-archive: yes
>>
>> Hi all,
>>
>> I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
>> conditioning.
>>
>> For about two years now, the highest setting on my heater (fan) blower
>> does not work. The other three settings work fine.
>>
>> Any ideas?
>>
>> Thanks
>> KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Sorry what I said earlier may not apply to your vehicle I sped read
the post and my mind saw 87 Wrangler when you of course were looking
for info on your 97 Wrangler.
>>
>> x-no-archive: yes
>>
>> Hi all,
>>
>> I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
>> conditioning.
>>
>> For about two years now, the highest setting on my heater (fan) blower
>> does not work. The other three settings work fine.
>>
>> Any ideas?
>>
>> Thanks
>> KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Sorry what I said earlier may not apply to your vehicle I sped read
the post and my mind saw 87 Wrangler when you of course were looking
for info on your 97 Wrangler.
>>
>> x-no-archive: yes
>>
>> Hi all,
>>
>> I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
>> conditioning.
>>
>> For about two years now, the highest setting on my heater (fan) blower
>> does not work. The other three settings work fine.
>>
>> Any ideas?
>>
>> Thanks
>> KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Actually, you right. It is the resistor unit. On a 97 TJ, it's located
just to the right of the evaporator. There's this thingie with 2
screws holding it on and an alectrical plug going to it. Most of the
time, passengers kick the plug accidentally and cause a loose
connection in one of the wires. On my TJ, setting 3 didnt work. If I
wriggled the wires, it cured the problem temporarily.

What I actually needed to do was to remove the resistor unit and clean
it out. It gets clogged with dirt and rust. Give it a thorough
cleaning, and it should be fine.

-Oliver
97 TJ

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Actually, you right. It is the resistor unit. On a 97 TJ, it's located
just to the right of the evaporator. There's this thingie with 2
screws holding it on and an alectrical plug going to it. Most of the
time, passengers kick the plug accidentally and cause a loose
connection in one of the wires. On my TJ, setting 3 didnt work. If I
wriggled the wires, it cured the problem temporarily.

What I actually needed to do was to remove the resistor unit and clean
it out. It gets clogged with dirt and rust. Give it a thorough
cleaning, and it should be fine.

-Oliver
97 TJ

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Actually, you right. It is the resistor unit. On a 97 TJ, it's located
just to the right of the evaporator. There's this thingie with 2
screws holding it on and an alectrical plug going to it. Most of the
time, passengers kick the plug accidentally and cause a loose
connection in one of the wires. On my TJ, setting 3 didnt work. If I
wriggled the wires, it cured the problem temporarily.

What I actually needed to do was to remove the resistor unit and clean
it out. It gets clogged with dirt and rust. Give it a thorough
cleaning, and it should be fine.

-Oliver
97 TJ

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

There is a TSB out on that problem I believe.

There is an issue with the ground on the dash coming loose causing the
heater fan not to work on high. The fix is to drill and tap the dash
for a better bolt to hold the ground on.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"1k2l3r4@mindspring.com" wrote:
>
> x-no-archive: yes
>
> Hi all,
>
> I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
> conditioning.
>
> For about two years now, the highest setting on my heater (fan) blower
> does not work. The other three settings work fine.
>
> Any ideas?
>
> Thanks
> KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

There is a TSB out on that problem I believe.

There is an issue with the ground on the dash coming loose causing the
heater fan not to work on high. The fix is to drill and tap the dash
for a better bolt to hold the ground on.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"1k2l3r4@mindspring.com" wrote:
>
> x-no-archive: yes
>
> Hi all,
>
> I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
> conditioning.
>
> For about two years now, the highest setting on my heater (fan) blower
> does not work. The other three settings work fine.
>
> Any ideas?
>
> Thanks
> KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

There is a TSB out on that problem I believe.

There is an issue with the ground on the dash coming loose causing the
heater fan not to work on high. The fix is to drill and tap the dash
for a better bolt to hold the ground on.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"1k2l3r4@mindspring.com" wrote:
>
> x-no-archive: yes
>
> Hi all,
>
> I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
> conditioning.
>
> For about two years now, the highest setting on my heater (fan) blower
> does not work. The other three settings work fine.
>
> Any ideas?
>
> Thanks
> KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Sometimes my 97 TJ high speed works too good...

It doesn't turn off even when the jeep is turned off. I think there is a
separate relay for high speed that is sticking. It eventually hangs up. It
usually happens a the worst time (when I am in a hurry).

GP-TJ
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FF2D08F.303DADC7@sympatico.ca...
> There is a TSB out on that problem I believe.
>
> There is an issue with the ground on the dash coming loose causing the
> heater fan not to work on high. The fix is to drill and tap the dash
> for a better bolt to hold the ground on.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> "1k2l3r4@mindspring.com" wrote:
> >
> > x-no-archive: yes
> >
> > Hi all,
> >
> > I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
> > conditioning.
> >
> > For about two years now, the highest setting on my heater (fan) blower
> > does not work. The other three settings work fine.
> >
> > Any ideas?
> >
> > Thanks
> > KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Sometimes my 97 TJ high speed works too good...

It doesn't turn off even when the jeep is turned off. I think there is a
separate relay for high speed that is sticking. It eventually hangs up. It
usually happens a the worst time (when I am in a hurry).

GP-TJ
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FF2D08F.303DADC7@sympatico.ca...
> There is a TSB out on that problem I believe.
>
> There is an issue with the ground on the dash coming loose causing the
> heater fan not to work on high. The fix is to drill and tap the dash
> for a better bolt to hold the ground on.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> "1k2l3r4@mindspring.com" wrote:
> >
> > x-no-archive: yes
> >
> > Hi all,
> >
> > I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
> > conditioning.
> >
> > For about two years now, the highest setting on my heater (fan) blower
> > does not work. The other three settings work fine.
> >
> > Any ideas?
> >
> > Thanks
> > KL

Re: High Setting on Blower Doesn't Work (97 Jeep)
 

Sometimes my 97 TJ high speed works too good...

It doesn't turn off even when the jeep is turned off. I think there is a
separate relay for high speed that is sticking. It eventually hangs up. It
usually happens a the worst time (when I am in a hurry).

GP-TJ
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FF2D08F.303DADC7@sympatico.ca...
> There is a TSB out on that problem I believe.
>
> There is an issue with the ground on the dash coming loose causing the
> heater fan not to work on high. The fix is to drill and tap the dash
> for a better bolt to hold the ground on.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> "1k2l3r4@mindspring.com" wrote:
> >
> > x-no-archive: yes
> >
> > Hi all,
> >
> > I have a 1997 Jeep Wrangler, 2.5, standard transmission, no air
> > conditioning.
> >
> > For about two years now, the highest setting on my heater (fan) blower
> > does not work. The other three settings work fine.
> >
> > Any ideas?
> >
> > Thanks
> > KL