engine light - Evaporative Emission Control System Leak Detected (very small leak) - JeepForum.com
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post #1 of 4 Old 03-13-2006, 08:56 PM Thread Starter
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engine light - Evaporative Emission Control System Leak Detected (very small leak)

yesterday .. out of no where ... came the ENGINE light

went to AUTO ZONE .. loaned a code grabber from them

came up
Evaporative Emission Control System Leak Detected (very small leak)

erased the code the light went off .. hasnt "tripped" again .. no other codes came up yesterday or today

what exactly am i looking for ..

2001 JEEP Grand Cherokee Limited
4.7 - 4x4
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post #2 of 4 Old 03-13-2006, 09:05 PM
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A leak somewhere..lol sorry i have the same problem. But i have large leak Evap. I belive gas cap as well as the fuel lines and ****

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post #3 of 4 Old 03-13-2006, 10:16 PM
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I get this time to time. It usually happens when the gas cap is not put back on tightly after filling. I drive through NJ on occasion-- all of their stations are full service -- that's been the main source of my problems thus far (I also once had a problem after installing an FIPK).

In any case, I disconnect the battery, and the check engine light dissapears.

Hope that helps

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post #4 of 4 Old 03-14-2006, 09:42 AM
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I had that same problem a few months back and I can't remember if I read it here or at JU forum, but several people recommended I replace my stock fuel cap w/a locking Stant gas cap. Supposedly the stock cap isn't very good.

I did get the $15 stant cap and haven't had the light come on since. Nice, cheap fix!

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