Help '91 yj wont start
 

Hi, my yj hasnt started in about 4 months now and it is really ticking
me off; luckily my trusty xj has been hauling me around but anyway if
you think you have an idea let me know, here's the symptoms

'91 yj
2.5 4-banger
tps
112k

After an oil change I parked it in the garage as it was starting to
get a bit cold to drive it everyday.

a week later i hopped in on a warmer day and cranked it over, it
wouldnt start, it was cranking, so it wasnt the starter or battery.

I figured ok, its prob the fuel filter.. so $10 and a face full of
fuel later that was changed, the old one didnt really look clogged and
guess what it still didnt start.

If i turn on the ignition i can hear something that sounds like the
fuel pump turning on, so maybe the pump is ok.

I hooked up a timimg light to each plug wire and the light goes on and
off as it should so I figure im getting spark.

I pulled the air intake off the throttle body, am I supposed to see
fuel coming through there when it cranks?

I tried putting a teaspoon of fuel into the air intake to see if it
fired, no luck; what is the proper way to see if fuel is actually
getting to the throttle body or the cylinder.

I am out of ideas, the only thing I can think of is maybe its out of
time. I didnt see any markings on the front of the motor to check
this. (maybe its under the dirt, I havent got really in there yet)
but thats my last hope.

if it is in time then do i check compression? before it wouldnt start
anymore it wasnt any more sluggish than a 2.5 normally is. there is
no obvious sounds of broken valves or anything like that as it turns
over.

could it be bad fuel?

i've called Dad and he's even stumped on this one! Thanks for any help
in advance!

Happy Jeepin'
-Mike

Re: Help '91 yj wont start
 

did you have the parking brake replaced as per the recent recall? If
so I expect the groudn to yoru fuel pump is bad.

On 10 Jan 2004 07:04:12 -0800, mcapsu@yahoo.com (mike) wrote:

>Hi, my yj hasnt started in about 4 months now and it is really ticking
>me off; luckily my trusty xj has been hauling me around but anyway if
>you think you have an idea let me know, here's the symptoms
>
>'91 yj
>2.5 4-banger
>tps
>112k
>
>After an oil change I parked it in the garage as it was starting to
>get a bit cold to drive it everyday.
>
>a week later i hopped in on a warmer day and cranked it over, it
>wouldnt start, it was cranking, so it wasnt the starter or battery.
>
>I figured ok, its prob the fuel filter.. so $10 and a face full of
>fuel later that was changed, the old one didnt really look clogged and
>guess what it still didnt start.
>
>If i turn on the ignition i can hear something that sounds like the
>fuel pump turning on, so maybe the pump is ok.
>
>I hooked up a timimg light to each plug wire and the light goes on and
>off as it should so I figure im getting spark.
>
>I pulled the air intake off the throttle body, am I supposed to see
>fuel coming through there when it cranks?
>
>I tried putting a teaspoon of fuel into the air intake to see if it
>fired, no luck; what is the proper way to see if fuel is actually
>getting to the throttle body or the cylinder.
>
>I am out of ideas, the only thing I can think of is maybe its out of
>time. I didnt see any markings on the front of the motor to check
>this. (maybe its under the dirt, I havent got really in there yet)
>but thats my last hope.
>
>if it is in time then do i check compression? before it wouldnt start
>anymore it wasnt any more sluggish than a 2.5 normally is. there is
>no obvious sounds of broken valves or anything like that as it turns
>over.
>
>could it be bad fuel?
>
>i've called Dad and he's even stumped on this one! Thanks for any help
>in advance!
>
>Happy Jeepin'
>-Mike

Re: Help '91 yj wont start
 

did you have the parking brake replaced as per the recent recall? If
so I expect the groudn to yoru fuel pump is bad.

On 10 Jan 2004 07:04:12 -0800, mcapsu@yahoo.com (mike) wrote:

>Hi, my yj hasnt started in about 4 months now and it is really ticking
>me off; luckily my trusty xj has been hauling me around but anyway if
>you think you have an idea let me know, here's the symptoms
>
>'91 yj
>2.5 4-banger
>tps
>112k
>
>After an oil change I parked it in the garage as it was starting to
>get a bit cold to drive it everyday.
>
>a week later i hopped in on a warmer day and cranked it over, it
>wouldnt start, it was cranking, so it wasnt the starter or battery.
>
>I figured ok, its prob the fuel filter.. so $10 and a face full of
>fuel later that was changed, the old one didnt really look clogged and
>guess what it still didnt start.
>
>If i turn on the ignition i can hear something that sounds like the
>fuel pump turning on, so maybe the pump is ok.
>
>I hooked up a timimg light to each plug wire and the light goes on and
>off as it should so I figure im getting spark.
>
>I pulled the air intake off the throttle body, am I supposed to see
>fuel coming through there when it cranks?
>
>I tried putting a teaspoon of fuel into the air intake to see if it
>fired, no luck; what is the proper way to see if fuel is actually
>getting to the throttle body or the cylinder.
>
>I am out of ideas, the only thing I can think of is maybe its out of
>time. I didnt see any markings on the front of the motor to check
>this. (maybe its under the dirt, I havent got really in there yet)
>but thats my last hope.
>
>if it is in time then do i check compression? before it wouldnt start
>anymore it wasnt any more sluggish than a 2.5 normally is. there is
>no obvious sounds of broken valves or anything like that as it turns
>over.
>
>could it be bad fuel?
>
>i've called Dad and he's even stumped on this one! Thanks for any help
>in advance!
>
>Happy Jeepin'
>-Mike

Re: Help '91 yj wont start
 

did you have the parking brake replaced as per the recent recall? If
so I expect the groudn to yoru fuel pump is bad.

On 10 Jan 2004 07:04:12 -0800, mcapsu@yahoo.com (mike) wrote:

>Hi, my yj hasnt started in about 4 months now and it is really ticking
>me off; luckily my trusty xj has been hauling me around but anyway if
>you think you have an idea let me know, here's the symptoms
>
>'91 yj
>2.5 4-banger
>tps
>112k
>
>After an oil change I parked it in the garage as it was starting to
>get a bit cold to drive it everyday.
>
>a week later i hopped in on a warmer day and cranked it over, it
>wouldnt start, it was cranking, so it wasnt the starter or battery.
>
>I figured ok, its prob the fuel filter.. so $10 and a face full of
>fuel later that was changed, the old one didnt really look clogged and
>guess what it still didnt start.
>
>If i turn on the ignition i can hear something that sounds like the
>fuel pump turning on, so maybe the pump is ok.
>
>I hooked up a timimg light to each plug wire and the light goes on and
>off as it should so I figure im getting spark.
>
>I pulled the air intake off the throttle body, am I supposed to see
>fuel coming through there when it cranks?
>
>I tried putting a teaspoon of fuel into the air intake to see if it
>fired, no luck; what is the proper way to see if fuel is actually
>getting to the throttle body or the cylinder.
>
>I am out of ideas, the only thing I can think of is maybe its out of
>time. I didnt see any markings on the front of the motor to check
>this. (maybe its under the dirt, I havent got really in there yet)
>but thats my last hope.
>
>if it is in time then do i check compression? before it wouldnt start
>anymore it wasnt any more sluggish than a 2.5 normally is. there is
>no obvious sounds of broken valves or anything like that as it turns
>over.
>
>could it be bad fuel?
>
>i've called Dad and he's even stumped on this one! Thanks for any help
>in advance!
>
>Happy Jeepin'
>-Mike

Re: Help '91 yj wont start
 

Where are you located? Maybe one of us wouldn't mind swinging by for a
look.

Jerry


"mike" <mcapsu@yahoo.com> wrote in message
news:fed0233a.0401100704.3087fa7c@posting.google.c om...
> Hi, my yj hasnt started in about 4 months now and it is really ticking
> me off; luckily my trusty xj has been hauling me around but anyway if
> you think you have an idea let me know, here's the symptoms
>
> '91 yj
> 2.5 4-banger
> tps
> 112k
>
> After an oil change I parked it in the garage as it was starting to
> get a bit cold to drive it everyday.
>
> a week later i hopped in on a warmer day and cranked it over, it
> wouldnt start, it was cranking, so it wasnt the starter or battery.
>
> I figured ok, its prob the fuel filter.. so $10 and a face full of
> fuel later that was changed, the old one didnt really look clogged and
> guess what it still didnt start.
>
> If i turn on the ignition i can hear something that sounds like the
> fuel pump turning on, so maybe the pump is ok.
>
> I hooked up a timimg light to each plug wire and the light goes on and
> off as it should so I figure im getting spark.
>
> I pulled the air intake off the throttle body, am I supposed to see
> fuel coming through there when it cranks?
>
> I tried putting a teaspoon of fuel into the air intake to see if it
> fired, no luck; what is the proper way to see if fuel is actually
> getting to the throttle body or the cylinder.
>
> I am out of ideas, the only thing I can think of is maybe its out of
> time. I didnt see any markings on the front of the motor to check
> this. (maybe its under the dirt, I havent got really in there yet)
> but thats my last hope.
>
> if it is in time then do i check compression? before it wouldnt start
> anymore it wasnt any more sluggish than a 2.5 normally is. there is
> no obvious sounds of broken valves or anything like that as it turns
> over.
>
> could it be bad fuel?
>
> i've called Dad and he's even stumped on this one! Thanks for any help
> in advance!
>
> Happy Jeepin'
> -Mike

Re: Help '91 yj wont start
 

Where are you located? Maybe one of us wouldn't mind swinging by for a
look.

Jerry


"mike" <mcapsu@yahoo.com> wrote in message
news:fed0233a.0401100704.3087fa7c@posting.google.c om...
> Hi, my yj hasnt started in about 4 months now and it is really ticking
> me off; luckily my trusty xj has been hauling me around but anyway if
> you think you have an idea let me know, here's the symptoms
>
> '91 yj
> 2.5 4-banger
> tps
> 112k
>
> After an oil change I parked it in the garage as it was starting to
> get a bit cold to drive it everyday.
>
> a week later i hopped in on a warmer day and cranked it over, it
> wouldnt start, it was cranking, so it wasnt the starter or battery.
>
> I figured ok, its prob the fuel filter.. so $10 and a face full of
> fuel later that was changed, the old one didnt really look clogged and
> guess what it still didnt start.
>
> If i turn on the ignition i can hear something that sounds like the
> fuel pump turning on, so maybe the pump is ok.
>
> I hooked up a timimg light to each plug wire and the light goes on and
> off as it should so I figure im getting spark.
>
> I pulled the air intake off the throttle body, am I supposed to see
> fuel coming through there when it cranks?
>
> I tried putting a teaspoon of fuel into the air intake to see if it
> fired, no luck; what is the proper way to see if fuel is actually
> getting to the throttle body or the cylinder.
>
> I am out of ideas, the only thing I can think of is maybe its out of
> time. I didnt see any markings on the front of the motor to check
> this. (maybe its under the dirt, I havent got really in there yet)
> but thats my last hope.
>
> if it is in time then do i check compression? before it wouldnt start
> anymore it wasnt any more sluggish than a 2.5 normally is. there is
> no obvious sounds of broken valves or anything like that as it turns
> over.
>
> could it be bad fuel?
>
> i've called Dad and he's even stumped on this one! Thanks for any help
> in advance!
>
> Happy Jeepin'
> -Mike

Re: Help '91 yj wont start
 

Where are you located? Maybe one of us wouldn't mind swinging by for a
look.

Jerry


"mike" <mcapsu@yahoo.com> wrote in message
news:fed0233a.0401100704.3087fa7c@posting.google.c om...
> Hi, my yj hasnt started in about 4 months now and it is really ticking
> me off; luckily my trusty xj has been hauling me around but anyway if
> you think you have an idea let me know, here's the symptoms
>
> '91 yj
> 2.5 4-banger
> tps
> 112k
>
> After an oil change I parked it in the garage as it was starting to
> get a bit cold to drive it everyday.
>
> a week later i hopped in on a warmer day and cranked it over, it
> wouldnt start, it was cranking, so it wasnt the starter or battery.
>
> I figured ok, its prob the fuel filter.. so $10 and a face full of
> fuel later that was changed, the old one didnt really look clogged and
> guess what it still didnt start.
>
> If i turn on the ignition i can hear something that sounds like the
> fuel pump turning on, so maybe the pump is ok.
>
> I hooked up a timimg light to each plug wire and the light goes on and
> off as it should so I figure im getting spark.
>
> I pulled the air intake off the throttle body, am I supposed to see
> fuel coming through there when it cranks?
>
> I tried putting a teaspoon of fuel into the air intake to see if it
> fired, no luck; what is the proper way to see if fuel is actually
> getting to the throttle body or the cylinder.
>
> I am out of ideas, the only thing I can think of is maybe its out of
> time. I didnt see any markings on the front of the motor to check
> this. (maybe its under the dirt, I havent got really in there yet)
> but thats my last hope.
>
> if it is in time then do i check compression? before it wouldnt start
> anymore it wasnt any more sluggish than a 2.5 normally is. there is
> no obvious sounds of broken valves or anything like that as it turns
> over.
>
> could it be bad fuel?
>
> i've called Dad and he's even stumped on this one! Thanks for any help
> in advance!
>
> Happy Jeepin'
> -Mike

Re: Help '91 yj wont start
 

Try more than a teaspoon.... more like 1/2 cup. Why would it be out of
time... you didn't do anything to it? Yes, you should see fuel spray into
the intake while trying to start. If not, then either the pump or the
injector is bad or the computer is not allowing them to work.

--
JimG
80' CJ-7 258 CID
35" BFG MT on 15x10 Centerlines
D44 Rear, Dana 30 Front. SOA
4.56 Gears, LockRight F&R
Dana 300 w/4:1 & Currie twin sticks
Warn X8000i w/ dual batteries

"mike" <mcapsu@yahoo.com> wrote in message
news:fed0233a.0401100704.3087fa7c@posting.google.c om...
> Hi, my yj hasnt started in about 4 months now and it is really ticking
> me off; luckily my trusty xj has been hauling me around but anyway if
> you think you have an idea let me know, here's the symptoms
>
> '91 yj
> 2.5 4-banger
> tps
> 112k
>
> After an oil change I parked it in the garage as it was starting to
> get a bit cold to drive it everyday.
>
> a week later i hopped in on a warmer day and cranked it over, it
> wouldnt start, it was cranking, so it wasnt the starter or battery.
>
> I figured ok, its prob the fuel filter.. so $10 and a face full of
> fuel later that was changed, the old one didnt really look clogged and
> guess what it still didnt start.
>
> If i turn on the ignition i can hear something that sounds like the
> fuel pump turning on, so maybe the pump is ok.
>
> I hooked up a timimg light to each plug wire and the light goes on and
> off as it should so I figure im getting spark.
>
> I pulled the air intake off the throttle body, am I supposed to see
> fuel coming through there when it cranks?
>
> I tried putting a teaspoon of fuel into the air intake to see if it
> fired, no luck; what is the proper way to see if fuel is actually
> getting to the throttle body or the cylinder.
>
> I am out of ideas, the only thing I can think of is maybe its out of
> time. I didnt see any markings on the front of the motor to check
> this. (maybe its under the dirt, I havent got really in there yet)
> but thats my last hope.
>
> if it is in time then do i check compression? before it wouldnt start
> anymore it wasnt any more sluggish than a 2.5 normally is. there is
> no obvious sounds of broken valves or anything like that as it turns
> over.
>
> could it be bad fuel?
>
> i've called Dad and he's even stumped on this one! Thanks for any help
> in advance!
>
> Happy Jeepin'
> -Mike

Re: Help '91 yj wont start
 

Try more than a teaspoon.... more like 1/2 cup. Why would it be out of
time... you didn't do anything to it? Yes, you should see fuel spray into
the intake while trying to start. If not, then either the pump or the
injector is bad or the computer is not allowing them to work.

--
JimG
80' CJ-7 258 CID
35" BFG MT on 15x10 Centerlines
D44 Rear, Dana 30 Front. SOA
4.56 Gears, LockRight F&R
Dana 300 w/4:1 & Currie twin sticks
Warn X8000i w/ dual batteries

"mike" <mcapsu@yahoo.com> wrote in message
news:fed0233a.0401100704.3087fa7c@posting.google.c om...
> Hi, my yj hasnt started in about 4 months now and it is really ticking
> me off; luckily my trusty xj has been hauling me around but anyway if
> you think you have an idea let me know, here's the symptoms
>
> '91 yj
> 2.5 4-banger
> tps
> 112k
>
> After an oil change I parked it in the garage as it was starting to
> get a bit cold to drive it everyday.
>
> a week later i hopped in on a warmer day and cranked it over, it
> wouldnt start, it was cranking, so it wasnt the starter or battery.
>
> I figured ok, its prob the fuel filter.. so $10 and a face full of
> fuel later that was changed, the old one didnt really look clogged and
> guess what it still didnt start.
>
> If i turn on the ignition i can hear something that sounds like the
> fuel pump turning on, so maybe the pump is ok.
>
> I hooked up a timimg light to each plug wire and the light goes on and
> off as it should so I figure im getting spark.
>
> I pulled the air intake off the throttle body, am I supposed to see
> fuel coming through there when it cranks?
>
> I tried putting a teaspoon of fuel into the air intake to see if it
> fired, no luck; what is the proper way to see if fuel is actually
> getting to the throttle body or the cylinder.
>
> I am out of ideas, the only thing I can think of is maybe its out of
> time. I didnt see any markings on the front of the motor to check
> this. (maybe its under the dirt, I havent got really in there yet)
> but thats my last hope.
>
> if it is in time then do i check compression? before it wouldnt start
> anymore it wasnt any more sluggish than a 2.5 normally is. there is
> no obvious sounds of broken valves or anything like that as it turns
> over.
>
> could it be bad fuel?
>
> i've called Dad and he's even stumped on this one! Thanks for any help
> in advance!
>
> Happy Jeepin'
> -Mike

Re: Help '91 yj wont start
 

Try more than a teaspoon.... more like 1/2 cup. Why would it be out of
time... you didn't do anything to it? Yes, you should see fuel spray into
the intake while trying to start. If not, then either the pump or the
injector is bad or the computer is not allowing them to work.

--
JimG
80' CJ-7 258 CID
35" BFG MT on 15x10 Centerlines
D44 Rear, Dana 30 Front. SOA
4.56 Gears, LockRight F&R
Dana 300 w/4:1 & Currie twin sticks
Warn X8000i w/ dual batteries

"mike" <mcapsu@yahoo.com> wrote in message
news:fed0233a.0401100704.3087fa7c@posting.google.c om...
> Hi, my yj hasnt started in about 4 months now and it is really ticking
> me off; luckily my trusty xj has been hauling me around but anyway if
> you think you have an idea let me know, here's the symptoms
>
> '91 yj
> 2.5 4-banger
> tps
> 112k
>
> After an oil change I parked it in the garage as it was starting to
> get a bit cold to drive it everyday.
>
> a week later i hopped in on a warmer day and cranked it over, it
> wouldnt start, it was cranking, so it wasnt the starter or battery.
>
> I figured ok, its prob the fuel filter.. so $10 and a face full of
> fuel later that was changed, the old one didnt really look clogged and
> guess what it still didnt start.
>
> If i turn on the ignition i can hear something that sounds like the
> fuel pump turning on, so maybe the pump is ok.
>
> I hooked up a timimg light to each plug wire and the light goes on and
> off as it should so I figure im getting spark.
>
> I pulled the air intake off the throttle body, am I supposed to see
> fuel coming through there when it cranks?
>
> I tried putting a teaspoon of fuel into the air intake to see if it
> fired, no luck; what is the proper way to see if fuel is actually
> getting to the throttle body or the cylinder.
>
> I am out of ideas, the only thing I can think of is maybe its out of
> time. I didnt see any markings on the front of the motor to check
> this. (maybe its under the dirt, I havent got really in there yet)
> but thats my last hope.
>
> if it is in time then do i check compression? before it wouldnt start
> anymore it wasnt any more sluggish than a 2.5 normally is. there is
> no obvious sounds of broken valves or anything like that as it turns
> over.
>
> could it be bad fuel?
>
> i've called Dad and he's even stumped on this one! Thanks for any help
> in advance!
>
> Happy Jeepin'
> -Mike

Re: Help '91 yj wont start
 

I would pull a plug to check it for gas.

That points you to no fuel or no/bad timed spark.

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

mike wrote:
>
> Hi, my yj hasnt started in about 4 months now and it is really ticking
> me off; luckily my trusty xj has been hauling me around but anyway if
> you think you have an idea let me know, here's the symptoms
>
> '91 yj
> 2.5 4-banger
> tps
> 112k
>
> After an oil change I parked it in the garage as it was starting to
> get a bit cold to drive it everyday.
>
> a week later i hopped in on a warmer day and cranked it over, it
> wouldnt start, it was cranking, so it wasnt the starter or battery.
>
> I figured ok, its prob the fuel filter.. so $10 and a face full of
> fuel later that was changed, the old one didnt really look clogged and
> guess what it still didnt start.
>
> If i turn on the ignition i can hear something that sounds like the
> fuel pump turning on, so maybe the pump is ok.
>
> I hooked up a timimg light to each plug wire and the light goes on and
> off as it should so I figure im getting spark.
>
> I pulled the air intake off the throttle body, am I supposed to see
> fuel coming through there when it cranks?
>
> I tried putting a teaspoon of fuel into the air intake to see if it
> fired, no luck; what is the proper way to see if fuel is actually
> getting to the throttle body or the cylinder.
>
> I am out of ideas, the only thing I can think of is maybe its out of
> time. I didnt see any markings on the front of the motor to check
> this. (maybe its under the dirt, I havent got really in there yet)
> but thats my last hope.
>
> if it is in time then do i check compression? before it wouldnt start
> anymore it wasnt any more sluggish than a 2.5 normally is. there is
> no obvious sounds of broken valves or anything like that as it turns
> over.
>
> could it be bad fuel?
>
> i've called Dad and he's even stumped on this one! Thanks for any help
> in advance!
>
> Happy Jeepin'
> -Mike

Re: Help '91 yj wont start
 

I would pull a plug to check it for gas.

That points you to no fuel or no/bad timed spark.

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

mike wrote:
>
> Hi, my yj hasnt started in about 4 months now and it is really ticking
> me off; luckily my trusty xj has been hauling me around but anyway if
> you think you have an idea let me know, here's the symptoms
>
> '91 yj
> 2.5 4-banger
> tps
> 112k
>
> After an oil change I parked it in the garage as it was starting to
> get a bit cold to drive it everyday.
>
> a week later i hopped in on a warmer day and cranked it over, it
> wouldnt start, it was cranking, so it wasnt the starter or battery.
>
> I figured ok, its prob the fuel filter.. so $10 and a face full of
> fuel later that was changed, the old one didnt really look clogged and
> guess what it still didnt start.
>
> If i turn on the ignition i can hear something that sounds like the
> fuel pump turning on, so maybe the pump is ok.
>
> I hooked up a timimg light to each plug wire and the light goes on and
> off as it should so I figure im getting spark.
>
> I pulled the air intake off the throttle body, am I supposed to see
> fuel coming through there when it cranks?
>
> I tried putting a teaspoon of fuel into the air intake to see if it
> fired, no luck; what is the proper way to see if fuel is actually
> getting to the throttle body or the cylinder.
>
> I am out of ideas, the only thing I can think of is maybe its out of
> time. I didnt see any markings on the front of the motor to check
> this. (maybe its under the dirt, I havent got really in there yet)
> but thats my last hope.
>
> if it is in time then do i check compression? before it wouldnt start
> anymore it wasnt any more sluggish than a 2.5 normally is. there is
> no obvious sounds of broken valves or anything like that as it turns
> over.
>
> could it be bad fuel?
>
> i've called Dad and he's even stumped on this one! Thanks for any help
> in advance!
>
> Happy Jeepin'
> -Mike

Re: Help '91 yj wont start
 

I would pull a plug to check it for gas.

That points you to no fuel or no/bad timed spark.

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

mike wrote:
>
> Hi, my yj hasnt started in about 4 months now and it is really ticking
> me off; luckily my trusty xj has been hauling me around but anyway if
> you think you have an idea let me know, here's the symptoms
>
> '91 yj
> 2.5 4-banger
> tps
> 112k
>
> After an oil change I parked it in the garage as it was starting to
> get a bit cold to drive it everyday.
>
> a week later i hopped in on a warmer day and cranked it over, it
> wouldnt start, it was cranking, so it wasnt the starter or battery.
>
> I figured ok, its prob the fuel filter.. so $10 and a face full of
> fuel later that was changed, the old one didnt really look clogged and
> guess what it still didnt start.
>
> If i turn on the ignition i can hear something that sounds like the
> fuel pump turning on, so maybe the pump is ok.
>
> I hooked up a timimg light to each plug wire and the light goes on and
> off as it should so I figure im getting spark.
>
> I pulled the air intake off the throttle body, am I supposed to see
> fuel coming through there when it cranks?
>
> I tried putting a teaspoon of fuel into the air intake to see if it
> fired, no luck; what is the proper way to see if fuel is actually
> getting to the throttle body or the cylinder.
>
> I am out of ideas, the only thing I can think of is maybe its out of
> time. I didnt see any markings on the front of the motor to check
> this. (maybe its under the dirt, I havent got really in there yet)
> but thats my last hope.
>
> if it is in time then do i check compression? before it wouldnt start
> anymore it wasnt any more sluggish than a 2.5 normally is. there is
> no obvious sounds of broken valves or anything like that as it turns
> over.
>
> could it be bad fuel?
>
> i've called Dad and he's even stumped on this one! Thanks for any help
> in advance!
>
> Happy Jeepin'
> -Mike

Re: Help '91 yj wont start
 

Mike Romain did pass the time by typing:
> I would pull a plug to check it for gas.
>
> That points you to no fuel or no/bad timed spark.
>

Or pull a sparkplug and check that it jumps a spark
about 1/2 inch to the block. A timing light trips on
current levels that will not produce a good spark.

Re: Help '91 yj wont start
 

Mike Romain did pass the time by typing:
> I would pull a plug to check it for gas.
>
> That points you to no fuel or no/bad timed spark.
>

Or pull a sparkplug and check that it jumps a spark
about 1/2 inch to the block. A timing light trips on
current levels that will not produce a good spark.

Re: Help '91 yj wont start
 

Mike Romain did pass the time by typing:
> I would pull a plug to check it for gas.
>
> That points you to no fuel or no/bad timed spark.
>

Or pull a sparkplug and check that it jumps a spark
about 1/2 inch to the block. A timing light trips on
current levels that will not produce a good spark.

Re: Help '91 yj wont start
 

DougW wrote:
>
> Mike Romain did pass the time by typing:
> > I would pull a plug to check it for gas.
> >
> > That points you to no fuel or no/bad timed spark.
> >
>
> Or pull a sparkplug and check that it jumps a spark
> about 1/2 inch to the block. A timing light trips on
> current levels that will not produce a good spark.

A timing light has suckered me the other way...

The thing didn't flick on 3 cylinders leading me to think a spark issue
when it was one of the carb barrels not giving gas to half the engine.

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

Re: Help '91 yj wont start
 

DougW wrote:
>
> Mike Romain did pass the time by typing:
> > I would pull a plug to check it for gas.
> >
> > That points you to no fuel or no/bad timed spark.
> >
>
> Or pull a sparkplug and check that it jumps a spark
> about 1/2 inch to the block. A timing light trips on
> current levels that will not produce a good spark.

A timing light has suckered me the other way...

The thing didn't flick on 3 cylinders leading me to think a spark issue
when it was one of the carb barrels not giving gas to half the engine.

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

Re: Help '91 yj wont start
 

DougW wrote:
>
> Mike Romain did pass the time by typing:
> > I would pull a plug to check it for gas.
> >
> > That points you to no fuel or no/bad timed spark.
> >
>
> Or pull a sparkplug and check that it jumps a spark
> about 1/2 inch to the block. A timing light trips on
> current levels that will not produce a good spark.

A timing light has suckered me the other way...

The thing didn't flick on 3 cylinders leading me to think a spark issue
when it was one of the carb barrels not giving gas to half the engine.

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

Re: Help '91 yj wont start
 

Hi guys,

Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
shrader valve this evening and it was between 30-40psi when cranking -
which is within spec acording to the haynes manual.

Its sounding like less than four cylinders are firing, i'll try the
plug to block test - if it isnt enough spark im guessing to try
changing the coil

other stuff i noticed, the horn wasnt working, nor the gauges or the
dummy lights in the center of the dash, upon removing all fuses under
the dash and scraping off any corrosion and spraying the hell out of
it with electrical cleaner i got the horn working, but still none of
the gauges or dummy lights. all the fuses in the block next to the
battery are good, the 3 50amp fuses and the 20amp iod fuse were the
only ones not to have 12 volts running across them with the ignition
in the on position and the vehicle off.

my thoughts now have it down to about 3 things...

1. some crazy electrical problem that will cause much pain to find.

2. dirty/clogged injector(s) (will it run on 3 cylinders?)

3. weak coil (i'll try the post that said to see if the spark jumps
about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)


side note:
i'm located in north raleigh, nc

thanks for the ideas guys - any more?

Happy Jeepin,
Mike

Re: Help '91 yj wont start
 

Hi guys,

Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
shrader valve this evening and it was between 30-40psi when cranking -
which is within spec acording to the haynes manual.

Its sounding like less than four cylinders are firing, i'll try the
plug to block test - if it isnt enough spark im guessing to try
changing the coil

other stuff i noticed, the horn wasnt working, nor the gauges or the
dummy lights in the center of the dash, upon removing all fuses under
the dash and scraping off any corrosion and spraying the hell out of
it with electrical cleaner i got the horn working, but still none of
the gauges or dummy lights. all the fuses in the block next to the
battery are good, the 3 50amp fuses and the 20amp iod fuse were the
only ones not to have 12 volts running across them with the ignition
in the on position and the vehicle off.

my thoughts now have it down to about 3 things...

1. some crazy electrical problem that will cause much pain to find.

2. dirty/clogged injector(s) (will it run on 3 cylinders?)

3. weak coil (i'll try the post that said to see if the spark jumps
about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)


side note:
i'm located in north raleigh, nc

thanks for the ideas guys - any more?

Happy Jeepin,
Mike

Re: Help '91 yj wont start
 

Hi guys,

Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
shrader valve this evening and it was between 30-40psi when cranking -
which is within spec acording to the haynes manual.

Its sounding like less than four cylinders are firing, i'll try the
plug to block test - if it isnt enough spark im guessing to try
changing the coil

other stuff i noticed, the horn wasnt working, nor the gauges or the
dummy lights in the center of the dash, upon removing all fuses under
the dash and scraping off any corrosion and spraying the hell out of
it with electrical cleaner i got the horn working, but still none of
the gauges or dummy lights. all the fuses in the block next to the
battery are good, the 3 50amp fuses and the 20amp iod fuse were the
only ones not to have 12 volts running across them with the ignition
in the on position and the vehicle off.

my thoughts now have it down to about 3 things...

1. some crazy electrical problem that will cause much pain to find.

2. dirty/clogged injector(s) (will it run on 3 cylinders?)

3. weak coil (i'll try the post that said to see if the spark jumps
about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)


side note:
i'm located in north raleigh, nc

thanks for the ideas guys - any more?

Happy Jeepin,
Mike

Re: Help '91 yj wont start
 

OK, now you have introduced a new (and significant) factor into the
mess. The fact that you had bad connections on at least one fuse says
that ALL the connections are suspect. I have to sing Mike Romain's
favorite song here: remove and clean ALL the ground straps, especially
the one between the block and the firewall (braided strap).

Out of curiosity, did this thing sit out on a damp night when it got
really cold? The moiture from such a night can often trigger all
sorts of "sudden" electrical failures due to condensation in some
really unlikely places.

On Tue, 13 Jan 2004 05:27:20 UTC mcapsu@yahoo.com (mike) wrote:

> Hi guys,
>
> Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
> shrader valve this evening and it was between 30-40psi when cranking -
> which is within spec acording to the haynes manual.
>
> Its sounding like less than four cylinders are firing, i'll try the
> plug to block test - if it isnt enough spark im guessing to try
> changing the coil
>
> other stuff i noticed, the horn wasnt working, nor the gauges or the
> dummy lights in the center of the dash, upon removing all fuses under
> the dash and scraping off any corrosion and spraying the hell out of
> it with electrical cleaner i got the horn working, but still none of
> the gauges or dummy lights. all the fuses in the block next to the
> battery are good, the 3 50amp fuses and the 20amp iod fuse were the
> only ones not to have 12 volts running across them with the ignition
> in the on position and the vehicle off.
>
> my thoughts now have it down to about 3 things...
>
> 1. some crazy electrical problem that will cause much pain to find.
>
> 2. dirty/clogged injector(s) (will it run on 3 cylinders?)
>
> 3. weak coil (i'll try the post that said to see if the spark jumps
> about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)
>
>
> side note:
> i'm located in north raleigh, nc
>
> thanks for the ideas guys - any more?
>
> Happy Jeepin,
> Mike


--
Will Honea <whonea@codenet.net>

Re: Help '91 yj wont start
 

OK, now you have introduced a new (and significant) factor into the
mess. The fact that you had bad connections on at least one fuse says
that ALL the connections are suspect. I have to sing Mike Romain's
favorite song here: remove and clean ALL the ground straps, especially
the one between the block and the firewall (braided strap).

Out of curiosity, did this thing sit out on a damp night when it got
really cold? The moiture from such a night can often trigger all
sorts of "sudden" electrical failures due to condensation in some
really unlikely places.

On Tue, 13 Jan 2004 05:27:20 UTC mcapsu@yahoo.com (mike) wrote:

> Hi guys,
>
> Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
> shrader valve this evening and it was between 30-40psi when cranking -
> which is within spec acording to the haynes manual.
>
> Its sounding like less than four cylinders are firing, i'll try the
> plug to block test - if it isnt enough spark im guessing to try
> changing the coil
>
> other stuff i noticed, the horn wasnt working, nor the gauges or the
> dummy lights in the center of the dash, upon removing all fuses under
> the dash and scraping off any corrosion and spraying the hell out of
> it with electrical cleaner i got the horn working, but still none of
> the gauges or dummy lights. all the fuses in the block next to the
> battery are good, the 3 50amp fuses and the 20amp iod fuse were the
> only ones not to have 12 volts running across them with the ignition
> in the on position and the vehicle off.
>
> my thoughts now have it down to about 3 things...
>
> 1. some crazy electrical problem that will cause much pain to find.
>
> 2. dirty/clogged injector(s) (will it run on 3 cylinders?)
>
> 3. weak coil (i'll try the post that said to see if the spark jumps
> about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)
>
>
> side note:
> i'm located in north raleigh, nc
>
> thanks for the ideas guys - any more?
>
> Happy Jeepin,
> Mike


--
Will Honea <whonea@codenet.net>

Re: Help '91 yj wont start
 

OK, now you have introduced a new (and significant) factor into the
mess. The fact that you had bad connections on at least one fuse says
that ALL the connections are suspect. I have to sing Mike Romain's
favorite song here: remove and clean ALL the ground straps, especially
the one between the block and the firewall (braided strap).

Out of curiosity, did this thing sit out on a damp night when it got
really cold? The moiture from such a night can often trigger all
sorts of "sudden" electrical failures due to condensation in some
really unlikely places.

On Tue, 13 Jan 2004 05:27:20 UTC mcapsu@yahoo.com (mike) wrote:

> Hi guys,
>
> Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
> shrader valve this evening and it was between 30-40psi when cranking -
> which is within spec acording to the haynes manual.
>
> Its sounding like less than four cylinders are firing, i'll try the
> plug to block test - if it isnt enough spark im guessing to try
> changing the coil
>
> other stuff i noticed, the horn wasnt working, nor the gauges or the
> dummy lights in the center of the dash, upon removing all fuses under
> the dash and scraping off any corrosion and spraying the hell out of
> it with electrical cleaner i got the horn working, but still none of
> the gauges or dummy lights. all the fuses in the block next to the
> battery are good, the 3 50amp fuses and the 20amp iod fuse were the
> only ones not to have 12 volts running across them with the ignition
> in the on position and the vehicle off.
>
> my thoughts now have it down to about 3 things...
>
> 1. some crazy electrical problem that will cause much pain to find.
>
> 2. dirty/clogged injector(s) (will it run on 3 cylinders?)
>
> 3. weak coil (i'll try the post that said to see if the spark jumps
> about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)
>
>
> side note:
> i'm located in north raleigh, nc
>
> thanks for the ideas guys - any more?
>
> Happy Jeepin,
> Mike


--
Will Honea <whonea@codenet.net>

Re: Help '91 yj wont start
 

I guess I won't have to say it then....
;-)

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

Will Honea wrote:
>
> OK, now you have introduced a new (and significant) factor into the
> mess. The fact that you had bad connections on at least one fuse says
> that ALL the connections are suspect. I have to sing Mike Romain's
> favorite song here: remove and clean ALL the ground straps, especially
> the one between the block and the firewall (braided strap).
>
> Out of curiosity, did this thing sit out on a damp night when it got
> really cold? The moiture from such a night can often trigger all
> sorts of "sudden" electrical failures due to condensation in some
> really unlikely places.
>
> On Tue, 13 Jan 2004 05:27:20 UTC mcapsu@yahoo.com (mike) wrote:
>
> > Hi guys,
> >
> > Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
> > shrader valve this evening and it was between 30-40psi when cranking -
> > which is within spec acording to the haynes manual.
> >
> > Its sounding like less than four cylinders are firing, i'll try the
> > plug to block test - if it isnt enough spark im guessing to try
> > changing the coil
> >
> > other stuff i noticed, the horn wasnt working, nor the gauges or the
> > dummy lights in the center of the dash, upon removing all fuses under
> > the dash and scraping off any corrosion and spraying the hell out of
> > it with electrical cleaner i got the horn working, but still none of
> > the gauges or dummy lights. all the fuses in the block next to the
> > battery are good, the 3 50amp fuses and the 20amp iod fuse were the
> > only ones not to have 12 volts running across them with the ignition
> > in the on position and the vehicle off.
> >
> > my thoughts now have it down to about 3 things...
> >
> > 1. some crazy electrical problem that will cause much pain to find.
> >
> > 2. dirty/clogged injector(s) (will it run on 3 cylinders?)
> >
> > 3. weak coil (i'll try the post that said to see if the spark jumps
> > about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)
> >
> >
> > side note:
> > i'm located in north raleigh, nc
> >
> > thanks for the ideas guys - any more?
> >
> > Happy Jeepin,
> > Mike
>
> --
> Will Honea <whonea@codenet.net>

Re: Help '91 yj wont start
 

I guess I won't have to say it then....
;-)

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

Will Honea wrote:
>
> OK, now you have introduced a new (and significant) factor into the
> mess. The fact that you had bad connections on at least one fuse says
> that ALL the connections are suspect. I have to sing Mike Romain's
> favorite song here: remove and clean ALL the ground straps, especially
> the one between the block and the firewall (braided strap).
>
> Out of curiosity, did this thing sit out on a damp night when it got
> really cold? The moiture from such a night can often trigger all
> sorts of "sudden" electrical failures due to condensation in some
> really unlikely places.
>
> On Tue, 13 Jan 2004 05:27:20 UTC mcapsu@yahoo.com (mike) wrote:
>
> > Hi guys,
> >
> > Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
> > shrader valve this evening and it was between 30-40psi when cranking -
> > which is within spec acording to the haynes manual.
> >
> > Its sounding like less than four cylinders are firing, i'll try the
> > plug to block test - if it isnt enough spark im guessing to try
> > changing the coil
> >
> > other stuff i noticed, the horn wasnt working, nor the gauges or the
> > dummy lights in the center of the dash, upon removing all fuses under
> > the dash and scraping off any corrosion and spraying the hell out of
> > it with electrical cleaner i got the horn working, but still none of
> > the gauges or dummy lights. all the fuses in the block next to the
> > battery are good, the 3 50amp fuses and the 20amp iod fuse were the
> > only ones not to have 12 volts running across them with the ignition
> > in the on position and the vehicle off.
> >
> > my thoughts now have it down to about 3 things...
> >
> > 1. some crazy electrical problem that will cause much pain to find.
> >
> > 2. dirty/clogged injector(s) (will it run on 3 cylinders?)
> >
> > 3. weak coil (i'll try the post that said to see if the spark jumps
> > about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)
> >
> >
> > side note:
> > i'm located in north raleigh, nc
> >
> > thanks for the ideas guys - any more?
> >
> > Happy Jeepin,
> > Mike
>
> --
> Will Honea <whonea@codenet.net>

Re: Help '91 yj wont start
 

I guess I won't have to say it then....
;-)

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

Will Honea wrote:
>
> OK, now you have introduced a new (and significant) factor into the
> mess. The fact that you had bad connections on at least one fuse says
> that ALL the connections are suspect. I have to sing Mike Romain's
> favorite song here: remove and clean ALL the ground straps, especially
> the one between the block and the firewall (braided strap).
>
> Out of curiosity, did this thing sit out on a damp night when it got
> really cold? The moiture from such a night can often trigger all
> sorts of "sudden" electrical failures due to condensation in some
> really unlikely places.
>
> On Tue, 13 Jan 2004 05:27:20 UTC mcapsu@yahoo.com (mike) wrote:
>
> > Hi guys,
> >
> > Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
> > shrader valve this evening and it was between 30-40psi when cranking -
> > which is within spec acording to the haynes manual.
> >
> > Its sounding like less than four cylinders are firing, i'll try the
> > plug to block test - if it isnt enough spark im guessing to try
> > changing the coil
> >
> > other stuff i noticed, the horn wasnt working, nor the gauges or the
> > dummy lights in the center of the dash, upon removing all fuses under
> > the dash and scraping off any corrosion and spraying the hell out of
> > it with electrical cleaner i got the horn working, but still none of
> > the gauges or dummy lights. all the fuses in the block next to the
> > battery are good, the 3 50amp fuses and the 20amp iod fuse were the
> > only ones not to have 12 volts running across them with the ignition
> > in the on position and the vehicle off.
> >
> > my thoughts now have it down to about 3 things...
> >
> > 1. some crazy electrical problem that will cause much pain to find.
> >
> > 2. dirty/clogged injector(s) (will it run on 3 cylinders?)
> >
> > 3. weak coil (i'll try the post that said to see if the spark jumps
> > about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)
> >
> >
> > side note:
> > i'm located in north raleigh, nc
> >
> > thanks for the ideas guys - any more?
> >
> > Happy Jeepin,
> > Mike
>
> --
> Will Honea <whonea@codenet.net>

Re: Help '91 yj wont start
 

It's funny how some of these questions evolve as the thread goes on -
to hell with the dead guages, why won't it start type of thing.

Way back when, I spent all sorts of time looking for bad headlights,
broken wiring, dimmer switches (still on the floor) on an old Ford. I
would be running down the road with high beams on when suddenly both
lights would go out. Switch to low beam or turn them on and back on
and they would be fine for a while. One night I noticed that this
happened more often in foggy weather or a drizzle so I pulled the
light switch, opened it up and cleaned several years of corrosion off
the circuit breaker contacts. No more problems (which was good
because the pay of a 2nd Lt. didn't permit too many luxury purchase
like new headlight switches <g>).

On Tue, 13 Jan 2004 13:12:26 UTC Mike Romain <romainm@sympatico.ca>
wrote:

> I guess I won't have to say it then....
> ;-)
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Will Honea wrote:
> >
> > OK, now you have introduced a new (and significant) factor into the
> > mess. The fact that you had bad connections on at least one fuse says
> > that ALL the connections are suspect. I have to sing Mike Romain's
> > favorite song here: remove and clean ALL the ground straps, especially
> > the one between the block and the firewall (braided strap).
> >
> > Out of curiosity, did this thing sit out on a damp night when it got
> > really cold? The moiture from such a night can often trigger all
> > sorts of "sudden" electrical failures due to condensation in some
> > really unlikely places.
> >
> > On Tue, 13 Jan 2004 05:27:20 UTC mcapsu@yahoo.com (mike) wrote:
> >
> > > Hi guys,
> > >
> > > Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
> > > shrader valve this evening and it was between 30-40psi when cranking -
> > > which is within spec acording to the haynes manual.
> > >
> > > Its sounding like less than four cylinders are firing, i'll try the
> > > plug to block test - if it isnt enough spark im guessing to try
> > > changing the coil
> > >
> > > other stuff i noticed, the horn wasnt working, nor the gauges or the
> > > dummy lights in the center of the dash, upon removing all fuses under
> > > the dash and scraping off any corrosion and spraying the hell out of
> > > it with electrical cleaner i got the horn working, but still none of
> > > the gauges or dummy lights. all the fuses in the block next to the
> > > battery are good, the 3 50amp fuses and the 20amp iod fuse were the
> > > only ones not to have 12 volts running across them with the ignition
> > > in the on position and the vehicle off.
> > >
> > > my thoughts now have it down to about 3 things...
> > >
> > > 1. some crazy electrical problem that will cause much pain to find.
> > >
> > > 2. dirty/clogged injector(s) (will it run on 3 cylinders?)
> > >
> > > 3. weak coil (i'll try the post that said to see if the spark jumps
> > > about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)
> > >
> > >
> > > side note:
> > > i'm located in north raleigh, nc
> > >
> > > thanks for the ideas guys - any more?
> > >
> > > Happy Jeepin,
> > > Mike
> >
> > --
> > Will Honea <whonea@codenet.net>


--
Will Honea <whonea@codenet.net>

Re: Help '91 yj wont start
 

It's funny how some of these questions evolve as the thread goes on -
to hell with the dead guages, why won't it start type of thing.

Way back when, I spent all sorts of time looking for bad headlights,
broken wiring, dimmer switches (still on the floor) on an old Ford. I
would be running down the road with high beams on when suddenly both
lights would go out. Switch to low beam or turn them on and back on
and they would be fine for a while. One night I noticed that this
happened more often in foggy weather or a drizzle so I pulled the
light switch, opened it up and cleaned several years of corrosion off
the circuit breaker contacts. No more problems (which was good
because the pay of a 2nd Lt. didn't permit too many luxury purchase
like new headlight switches <g>).

On Tue, 13 Jan 2004 13:12:26 UTC Mike Romain <romainm@sympatico.ca>
wrote:

> I guess I won't have to say it then....
> ;-)
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Will Honea wrote:
> >
> > OK, now you have introduced a new (and significant) factor into the
> > mess. The fact that you had bad connections on at least one fuse says
> > that ALL the connections are suspect. I have to sing Mike Romain's
> > favorite song here: remove and clean ALL the ground straps, especially
> > the one between the block and the firewall (braided strap).
> >
> > Out of curiosity, did this thing sit out on a damp night when it got
> > really cold? The moiture from such a night can often trigger all
> > sorts of "sudden" electrical failures due to condensation in some
> > really unlikely places.
> >
> > On Tue, 13 Jan 2004 05:27:20 UTC mcapsu@yahoo.com (mike) wrote:
> >
> > > Hi guys,
> > >
> > > Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
> > > shrader valve this evening and it was between 30-40psi when cranking -
> > > which is within spec acording to the haynes manual.
> > >
> > > Its sounding like less than four cylinders are firing, i'll try the
> > > plug to block test - if it isnt enough spark im guessing to try
> > > changing the coil
> > >
> > > other stuff i noticed, the horn wasnt working, nor the gauges or the
> > > dummy lights in the center of the dash, upon removing all fuses under
> > > the dash and scraping off any corrosion and spraying the hell out of
> > > it with electrical cleaner i got the horn working, but still none of
> > > the gauges or dummy lights. all the fuses in the block next to the
> > > battery are good, the 3 50amp fuses and the 20amp iod fuse were the
> > > only ones not to have 12 volts running across them with the ignition
> > > in the on position and the vehicle off.
> > >
> > > my thoughts now have it down to about 3 things...
> > >
> > > 1. some crazy electrical problem that will cause much pain to find.
> > >
> > > 2. dirty/clogged injector(s) (will it run on 3 cylinders?)
> > >
> > > 3. weak coil (i'll try the post that said to see if the spark jumps
> > > about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)
> > >
> > >
> > > side note:
> > > i'm located in north raleigh, nc
> > >
> > > thanks for the ideas guys - any more?
> > >
> > > Happy Jeepin,
> > > Mike
> >
> > --
> > Will Honea <whonea@codenet.net>


--
Will Honea <whonea@codenet.net>

Re: Help '91 yj wont start
 

It's funny how some of these questions evolve as the thread goes on -
to hell with the dead guages, why won't it start type of thing.

Way back when, I spent all sorts of time looking for bad headlights,
broken wiring, dimmer switches (still on the floor) on an old Ford. I
would be running down the road with high beams on when suddenly both
lights would go out. Switch to low beam or turn them on and back on
and they would be fine for a while. One night I noticed that this
happened more often in foggy weather or a drizzle so I pulled the
light switch, opened it up and cleaned several years of corrosion off
the circuit breaker contacts. No more problems (which was good
because the pay of a 2nd Lt. didn't permit too many luxury purchase
like new headlight switches <g>).

On Tue, 13 Jan 2004 13:12:26 UTC Mike Romain <romainm@sympatico.ca>
wrote:

> I guess I won't have to say it then....
> ;-)
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Will Honea wrote:
> >
> > OK, now you have introduced a new (and significant) factor into the
> > mess. The fact that you had bad connections on at least one fuse says
> > that ALL the connections are suspect. I have to sing Mike Romain's
> > favorite song here: remove and clean ALL the ground straps, especially
> > the one between the block and the firewall (braided strap).
> >
> > Out of curiosity, did this thing sit out on a damp night when it got
> > really cold? The moiture from such a night can often trigger all
> > sorts of "sudden" electrical failures due to condensation in some
> > really unlikely places.
> >
> > On Tue, 13 Jan 2004 05:27:20 UTC mcapsu@yahoo.com (mike) wrote:
> >
> > > Hi guys,
> > >
> > > Thanks for the ideas, I put a fuel pressure tester on the fuel rail's
> > > shrader valve this evening and it was between 30-40psi when cranking -
> > > which is within spec acording to the haynes manual.
> > >
> > > Its sounding like less than four cylinders are firing, i'll try the
> > > plug to block test - if it isnt enough spark im guessing to try
> > > changing the coil
> > >
> > > other stuff i noticed, the horn wasnt working, nor the gauges or the
> > > dummy lights in the center of the dash, upon removing all fuses under
> > > the dash and scraping off any corrosion and spraying the hell out of
> > > it with electrical cleaner i got the horn working, but still none of
> > > the gauges or dummy lights. all the fuses in the block next to the
> > > battery are good, the 3 50amp fuses and the 20amp iod fuse were the
> > > only ones not to have 12 volts running across them with the ignition
> > > in the on position and the vehicle off.
> > >
> > > my thoughts now have it down to about 3 things...
> > >
> > > 1. some crazy electrical problem that will cause much pain to find.
> > >
> > > 2. dirty/clogged injector(s) (will it run on 3 cylinders?)
> > >
> > > 3. weak coil (i'll try the post that said to see if the spark jumps
> > > about 1/2 inch to the block - i'll get my roommate to hold it.. hehe)
> > >
> > >
> > > side note:
> > > i'm located in north raleigh, nc
> > >
> > > thanks for the ideas guys - any more?
> > >
> > > Happy Jeepin,
> > > Mike
> >
> > --
> > Will Honea <whonea@codenet.net>


--
Will Honea <whonea@codenet.net>