97 4.0 Auto won't start
12-27-2011, 02:30 PM
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Model: Cherokee
97 4.0 Auto won't start
So, something finally went out.
I had to change my battery (died on me), replaced it with a new one, started, the Jeep was running ok. Turned it off, started again, and that's it. Won't start again. Turns and sounds like its ALMOST there.
I was able to determine I have fuel and spark.
I had a head on with a tree, minor damage before that, that's fixed.
No codes, no check engine light.
A crank sensor malfunction would not give spark from what I read. What else could it be?
I had to change my battery (died on me), replaced it with a new one, started, the Jeep was running ok. Turned it off, started again, and that's it. Won't start again. Turns and sounds like its ALMOST there.
I was able to determine I have fuel and spark.
I had a head on with a tree, minor damage before that, that's fixed.
No codes, no check engine light.
A crank sensor malfunction would not give spark from what I read. What else could it be?
12-28-2011, 09:09 AM
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Ok, got it started. Had to shift to N, apply break and half-throttle. It will die if I don't keep the revs up with the throttle. After 2 minutes it idles ok.
What died?
What died?
12-28-2011, 05:43 PM
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Year: 1999
Model: Cherokee
Engine: 4.0
I know you replaced the battery, but was it completely charged before you installed it? I'd also consider "load testing" it. It is somewhat rare, but you can get a DOA battery direct from the parts store. I've had it happen to me once.
Gotta verify electrical before looking elsewhere.
12-28-2011, 05:49 PM
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Year: 1997
Model: Cherokee
Engine: 4.0
Originally Posted by IronTom
Ok, got it started. Had to shift to N, apply break and half-throttle. It will die if I don't keep the revs up with the throttle. After 2 minutes it idles ok.
What died?
What died?
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12-29-2011, 03:56 AM
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Thanks for your answers. It stalls at idle RPMs from time to time now.
1. Battery is ok, checked before installing.
2. Idle values - yes, that was my first thought, but I think it should stop stalling if this is the case.
I guess I got to do the regular IAC, TPS, O2 sensor tests. I will post what I find for future readers.
1. Battery is ok, checked before installing.
2. Idle values - yes, that was my first thought, but I think it should stop stalling if this is the case.
I guess I got to do the regular IAC, TPS, O2 sensor tests. I will post what I find for future readers.
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