Re: Jeep Engine Stalls Just After Startup
 

This just happened to my wife's 99 Limited (73K mi) on Friday. I would
believe the fuel pressure thoughts, the CPS was just replaced.


"James Nipper" <jnipper@nospam.fdn.com> wrote in message
news:QpydnV3iaeSeswDd4p2dnA@comcast.com...
>
>
> I have a 2000 Jeep Grand Cherokee Limited, 76,000 miles. I had a weird
> problem today. The engine would start very quickly with no hesitation,
> run for about 3-5 seconds, and then abruptly shut off. After about 2-3
> starts/stops like this, I gave it some gas immediately after starting, to
> see if I could goose it and make it keep going. No luck.
>
> I am NOT a mechanic, but my first thought was some type of fuel problem.
> Maybe the gas line filter.
>
> It then occured to me that the engine was acting **exactly** how the
Jeep
> will act if you use a non-chip (programmed) ignition key to start it.
I
> had done this one time (not aware of the chip need in the spare key) and
> the engine acted the same way -- quick start/ run 3-5 seconds/ shut off.
>
> This happened today. I have now started it several times and it is
> running without a problem.
>
> I would appreciate any comments on what any of you guys think this might
> have been, and if I am likely to have the same problem tomorrow, etc.
>
> Thanks for any help !!
>
> --James---
>

Re: Jeep Engine Stalls Just After Startup
 

This just happened to my wife's 99 Limited (73K mi) on Friday. I would
believe the fuel pressure thoughts, the CPS was just replaced.


"James Nipper" <jnipper@nospam.fdn.com> wrote in message
news:QpydnV3iaeSeswDd4p2dnA@comcast.com...
>
>
> I have a 2000 Jeep Grand Cherokee Limited, 76,000 miles. I had a weird
> problem today. The engine would start very quickly with no hesitation,
> run for about 3-5 seconds, and then abruptly shut off. After about 2-3
> starts/stops like this, I gave it some gas immediately after starting, to
> see if I could goose it and make it keep going. No luck.
>
> I am NOT a mechanic, but my first thought was some type of fuel problem.
> Maybe the gas line filter.
>
> It then occured to me that the engine was acting **exactly** how the
Jeep
> will act if you use a non-chip (programmed) ignition key to start it.
I
> had done this one time (not aware of the chip need in the spare key) and
> the engine acted the same way -- quick start/ run 3-5 seconds/ shut off.
>
> This happened today. I have now started it several times and it is
> running without a problem.
>
> I would appreciate any comments on what any of you guys think this might
> have been, and if I am likely to have the same problem tomorrow, etc.
>
> Thanks for any help !!
>
> --James---
>

Re: Jeep Engine Stalls Just After Startup
 

This just happened to my wife's 99 Limited (73K mi) on Friday. I would
believe the fuel pressure thoughts, the CPS was just replaced.


"James Nipper" <jnipper@nospam.fdn.com> wrote in message
news:QpydnV3iaeSeswDd4p2dnA@comcast.com...
>
>
> I have a 2000 Jeep Grand Cherokee Limited, 76,000 miles. I had a weird
> problem today. The engine would start very quickly with no hesitation,
> run for about 3-5 seconds, and then abruptly shut off. After about 2-3
> starts/stops like this, I gave it some gas immediately after starting, to
> see if I could goose it and make it keep going. No luck.
>
> I am NOT a mechanic, but my first thought was some type of fuel problem.
> Maybe the gas line filter.
>
> It then occured to me that the engine was acting **exactly** how the
Jeep
> will act if you use a non-chip (programmed) ignition key to start it.
I
> had done this one time (not aware of the chip need in the spare key) and
> the engine acted the same way -- quick start/ run 3-5 seconds/ shut off.
>
> This happened today. I have now started it several times and it is
> running without a problem.
>
> I would appreciate any comments on what any of you guys think this might
> have been, and if I am likely to have the same problem tomorrow, etc.
>
> Thanks for any help !!
>
> --James---
>

Re: Jeep Engine Stalls Just After Startup
 

I got some electrical contact spray and did this today. So far it
starts consistently and idles at about 500, but the idle is kinda
choppy. It fluctuates +/- 100 RPM or so. It doesn't sputter per se,
it just kinda sweeps up & down on the tach.

I also got some throttle body cleaner and a toothbrush and cleaned the
Idle Air Pasage and both sides of the butterfly and the inside of the
throttle body cylinder.

While it didn't enjoy starting immediately after spraying the cleaner
inside the throttle body, I wiped it out with a clean rag and after
one start things were ok.

What I'm wondering is what the specs say the idle should be. If
you're just joining us, it's a 2000 Cherokee Freedom 6 cyl 4.0.

Thanks!

On Tue, 03 Aug 2004 08:58:28 -0400, Mike Romain <romainm@sympatico.ca>
wrote:

>I use an electronic contact cleaner on the plug for the TPS and any
>other plugs on top of the engine I can find.
>
>If you look at the throttle body, you will see a couple plugs going
>right into it. Remove these and spray clean the pins. One of them is
>the TPS.
>
>I used a proper contact cleaner the first time on my TPS and the 'fix'
>lasted 2 years. It then went nuts in the bush on us so I used WD40 as a
>contact cleaner. This lasted one year.
>
>You also have a CPS (crank position sensor) plug near the rear of the
>exhaust manifold on top of it. This also can benefit from a clean.

Re: Jeep Engine Stalls Just After Startup
 

I got some electrical contact spray and did this today. So far it
starts consistently and idles at about 500, but the idle is kinda
choppy. It fluctuates +/- 100 RPM or so. It doesn't sputter per se,
it just kinda sweeps up & down on the tach.

I also got some throttle body cleaner and a toothbrush and cleaned the
Idle Air Pasage and both sides of the butterfly and the inside of the
throttle body cylinder.

While it didn't enjoy starting immediately after spraying the cleaner
inside the throttle body, I wiped it out with a clean rag and after
one start things were ok.

What I'm wondering is what the specs say the idle should be. If
you're just joining us, it's a 2000 Cherokee Freedom 6 cyl 4.0.

Thanks!

On Tue, 03 Aug 2004 08:58:28 -0400, Mike Romain <romainm@sympatico.ca>
wrote:

>I use an electronic contact cleaner on the plug for the TPS and any
>other plugs on top of the engine I can find.
>
>If you look at the throttle body, you will see a couple plugs going
>right into it. Remove these and spray clean the pins. One of them is
>the TPS.
>
>I used a proper contact cleaner the first time on my TPS and the 'fix'
>lasted 2 years. It then went nuts in the bush on us so I used WD40 as a
>contact cleaner. This lasted one year.
>
>You also have a CPS (crank position sensor) plug near the rear of the
>exhaust manifold on top of it. This also can benefit from a clean.

Re: Jeep Engine Stalls Just After Startup
 

I got some electrical contact spray and did this today. So far it
starts consistently and idles at about 500, but the idle is kinda
choppy. It fluctuates +/- 100 RPM or so. It doesn't sputter per se,
it just kinda sweeps up & down on the tach.

I also got some throttle body cleaner and a toothbrush and cleaned the
Idle Air Pasage and both sides of the butterfly and the inside of the
throttle body cylinder.

While it didn't enjoy starting immediately after spraying the cleaner
inside the throttle body, I wiped it out with a clean rag and after
one start things were ok.

What I'm wondering is what the specs say the idle should be. If
you're just joining us, it's a 2000 Cherokee Freedom 6 cyl 4.0.

Thanks!

On Tue, 03 Aug 2004 08:58:28 -0400, Mike Romain <romainm@sympatico.ca>
wrote:

>I use an electronic contact cleaner on the plug for the TPS and any
>other plugs on top of the engine I can find.
>
>If you look at the throttle body, you will see a couple plugs going
>right into it. Remove these and spray clean the pins. One of them is
>the TPS.
>
>I used a proper contact cleaner the first time on my TPS and the 'fix'
>lasted 2 years. It then went nuts in the bush on us so I used WD40 as a
>contact cleaner. This lasted one year.
>
>You also have a CPS (crank position sensor) plug near the rear of the
>exhaust manifold on top of it. This also can benefit from a clean.

Re: Jeep Engine Stalls Just After Startup
 

I got some electrical contact spray and did this today. So far it
starts consistently and idles at about 500, but the idle is kinda
choppy. It fluctuates +/- 100 RPM or so. It doesn't sputter per se,
it just kinda sweeps up & down on the tach.

I also got some throttle body cleaner and a toothbrush and cleaned the
Idle Air Pasage and both sides of the butterfly and the inside of the
throttle body cylinder.

While it didn't enjoy starting immediately after spraying the cleaner
inside the throttle body, I wiped it out with a clean rag and after
one start things were ok.

What I'm wondering is what the specs say the idle should be. If
you're just joining us, it's a 2000 Cherokee Freedom 6 cyl 4.0.

Thanks!

On Tue, 03 Aug 2004 08:58:28 -0400, Mike Romain <romainm@sympatico.ca>
wrote:

>I use an electronic contact cleaner on the plug for the TPS and any
>other plugs on top of the engine I can find.
>
>If you look at the throttle body, you will see a couple plugs going
>right into it. Remove these and spray clean the pins. One of them is
>the TPS.
>
>I used a proper contact cleaner the first time on my TPS and the 'fix'
>lasted 2 years. It then went nuts in the bush on us so I used WD40 as a
>contact cleaner. This lasted one year.
>
>You also have a CPS (crank position sensor) plug near the rear of the
>exhaust manifold on top of it. This also can benefit from a clean.

Re: Jeep Engine Stalls Just After Startup
 

Well, the fix didn't last long. In fact the problem is occurring on a
more consistent basis now. I haven't had the battery tested, but the
eye is still green and I have NO starting problems or any other
problems related to the electrical system. The battery isn't pulling
an abnormal from the alternator or anything. It's just this lack of
idle.

I have determined that if I drive with 2 feet just long enough to get
to the end of my block (100 yds at most), it doens't stall. I can
also sit there with it in gear and my foot on the break and rev up to
about 2500, I'm good to go too. It seems that I have to put it in
gear and give it some RPM and I'm ok.

Does this sound familir to anyone? Can anyone suggest a fix?

2000 Cherokee Freedom
Straight 6 - 4.0L Automatic

On Wed, 04 Aug 2004 22:26:38 -0700, Chuck Rowe <none@fakeisp.com>
wrote:

>I got some electrical contact spray and did this today. So far it
>starts consistently and idles at about 500, but the idle is kinda
>choppy. It fluctuates +/- 100 RPM or so. It doesn't sputter per se,
>it just kinda sweeps up & down on the tach.
>
>I also got some throttle body cleaner and a toothbrush and cleaned the
>Idle Air Pasage and both sides of the butterfly and the inside of the
>throttle body cylinder.
>
>While it didn't enjoy starting immediately after spraying the cleaner
>inside the throttle body, I wiped it out with a clean rag and after
>one start things were ok.

Re: Jeep Engine Stalls Just After Startup
 

Well, the fix didn't last long. In fact the problem is occurring on a
more consistent basis now. I haven't had the battery tested, but the
eye is still green and I have NO starting problems or any other
problems related to the electrical system. The battery isn't pulling
an abnormal from the alternator or anything. It's just this lack of
idle.

I have determined that if I drive with 2 feet just long enough to get
to the end of my block (100 yds at most), it doens't stall. I can
also sit there with it in gear and my foot on the break and rev up to
about 2500, I'm good to go too. It seems that I have to put it in
gear and give it some RPM and I'm ok.

Does this sound familir to anyone? Can anyone suggest a fix?

2000 Cherokee Freedom
Straight 6 - 4.0L Automatic

On Wed, 04 Aug 2004 22:26:38 -0700, Chuck Rowe <none@fakeisp.com>
wrote:

>I got some electrical contact spray and did this today. So far it
>starts consistently and idles at about 500, but the idle is kinda
>choppy. It fluctuates +/- 100 RPM or so. It doesn't sputter per se,
>it just kinda sweeps up & down on the tach.
>
>I also got some throttle body cleaner and a toothbrush and cleaned the
>Idle Air Pasage and both sides of the butterfly and the inside of the
>throttle body cylinder.
>
>While it didn't enjoy starting immediately after spraying the cleaner
>inside the throttle body, I wiped it out with a clean rag and after
>one start things were ok.

Re: Jeep Engine Stalls Just After Startup
 

Well, the fix didn't last long. In fact the problem is occurring on a
more consistent basis now. I haven't had the battery tested, but the
eye is still green and I have NO starting problems or any other
problems related to the electrical system. The battery isn't pulling
an abnormal from the alternator or anything. It's just this lack of
idle.

I have determined that if I drive with 2 feet just long enough to get
to the end of my block (100 yds at most), it doens't stall. I can
also sit there with it in gear and my foot on the break and rev up to
about 2500, I'm good to go too. It seems that I have to put it in
gear and give it some RPM and I'm ok.

Does this sound familir to anyone? Can anyone suggest a fix?

2000 Cherokee Freedom
Straight 6 - 4.0L Automatic

On Wed, 04 Aug 2004 22:26:38 -0700, Chuck Rowe <none@fakeisp.com>
wrote:

>I got some electrical contact spray and did this today. So far it
>starts consistently and idles at about 500, but the idle is kinda
>choppy. It fluctuates +/- 100 RPM or so. It doesn't sputter per se,
>it just kinda sweeps up & down on the tach.
>
>I also got some throttle body cleaner and a toothbrush and cleaned the
>Idle Air Pasage and both sides of the butterfly and the inside of the
>throttle body cylinder.
>
>While it didn't enjoy starting immediately after spraying the cleaner
>inside the throttle body, I wiped it out with a clean rag and after
>one start things were ok.