Today my Check Engine Light came on and stays on. What should I check for it to turn off.

 

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.

 

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.

 

I did what it said and it went through the 1111111 and 9999999 but the light didnt blink so I don't know what it is.

 

When it comes back on take it to auto zone they will tell you what code you have for free.

 

Here is the link to the codes that we already have on CF.
https://www.cherokeeforum.com/showthread.php?t=3323

 

A worthwhile investment.

http://www.harborfreight.com/cpi/cta...emnumber=94169



I agree with autozone, they do it for ya

 

Most major auto parts stores will check it for free.

 

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!

 

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?

 

I've had the Small EVAP Emission Control System leak for over a year now off and on...reason...

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.

 

I had the same problem on my tj. I could never figure it out.

 

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).

 

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.

 

The evap leaks probably won't harm the engine.