Check Engine Light Stays On
08-26-2008, 04:18 PM
#2
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Year: 1990
Model: Cherokee
Engine: 4.7 Stroker
Click the key 3 times and see what the code is.
ODBII.com I think has all the codes, if not allpar.com does.
Fix problem...light will go off.
Otherwise disconnect battery...Turn on headlights for 20 minutes and it will clear the codes. But it will most likely come back if you don't fix the problem.
ODBII.com I think has all the codes, if not allpar.com does.
Fix problem...light will go off.
Otherwise disconnect battery...Turn on headlights for 20 minutes and it will clear the codes. But it will most likely come back if you don't fix the problem.
08-26-2008, 04:25 PM
#3
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Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
We have the codes here in a sticky. I gave them to Kyle and he included them in a sticky and OKC added the OBD I codes as well.
08-26-2008, 10:17 PM
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Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Here is the link to the codes that we already have on CF.
https://www.cherokeeforum.com/showthread.php?t=3323
https://www.cherokeeforum.com/showthread.php?t=3323
08-26-2008, 11:05 PM
#7
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Year: 2001
Model: Cherokee
Engine: 4.0
A worthwhile investment.
http://www.harborfreight.com/cpi/cta...emnumber=94169
I agree with autozone, they do it for ya
http://www.harborfreight.com/cpi/cta...emnumber=94169
I agree with autozone, they do it for ya
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08-27-2008, 12:41 AM
#9
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Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Either buy a code reader (Scanner) or get the code read at a parts house and then read the codes linked for you above and let us know what had the CEL lit!
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WeirdWizard (07-17-2019)
09-01-2008, 11:06 AM
#10
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Year: 2001
Model: Cherokee
Engine: 4.0L
I went to autozone and Had it checked and my numbers are PO442 and PO455
Which are small and large EVAP Emission Control System Leaks what parts do I need?
Which are small and large EVAP Emission Control System Leaks what parts do I need?
09-01-2008, 11:27 AM
#11
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Year: 2001
Model: Grand Cherokee
Engine: 4.7L V8
Doesn't really negatively effect anything, but it would be nice to cure it one day...You can try checking your gas cap, all the lines running in and out of your gas tank...Here's a diagram to help you out...
Later.
09-01-2008, 03:46 PM
#13
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Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Try looking to see if the charcoal cannister is clogged or the line crimped. That is what I read on another forum awhile back about that code(PO442).
09-07-2008, 07:27 PM
#14
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Year: 2001
Model: Cherokee
Engine: 4.0L
Does anyone know if a new gas cap from Autozone will fix the problem. I really need the light to turn off it is getting annoying not knowing if it is hurting the engine or not.