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Old 01-10-2010, 04:52 AM   #1
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Exclamation Check Gas Cap message...

Hey everyone:

Well, I just got the Check Gas Cap message that I remember seeing posted on here a few months ago.

Is there a fix for it?

I would hope so.

Let me know.

Thanks!
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Old 01-10-2010, 08:03 AM   #2
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I searched, and found lot'* of posts with your same issue. You could try what these guys did. Clean the filler neck, check the valve.
https://www.gmforum.com/showthread.p...as+cap+message
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Old 01-10-2010, 10:43 AM   #3
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I'm just gonna say this, even though it may seem dumb. But, have you actually checked the cap to make sure it'* on all the way?
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Old 01-10-2010, 02:40 PM   #4
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Quote:
Originally Posted by MouSe View Post
I'm just gonna say this, even though it may seem dumb. But, have you actually checked the cap to make sure it'* on all the way?
Bro I love you for sayin this. LOLOL!!!
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Old 01-10-2010, 03:40 PM   #5
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Well I would hate for him to try stuff before checking the blatantly obvious. I understand we all like to think we don't screw up, but we all do at time to time.
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Old 01-10-2010, 04:51 PM   #6
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From when i worked at the chevy garage the first thing we asked the customer was if they filled the tank with gas while the vehicle was running and if the cap was not put on tight or left off. Then we checked for evap leaks. If the cap is ok and and the stuff above is not the reason. If more than likely a evap leak.
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Old 01-10-2010, 07:32 PM   #7
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Quote:
Originally Posted by MouSe View Post
I'm just gonna say this, even though it may seem dumb. But, have you actually checked the cap to make sure it'* on all the way?
Yeah, several times actually...

I thought it might have been a vapor lock or the equivalent, so took the gas cap off and put back on several times...

I thought it may have had something to do with bad gas, so I went and filled it up with gas - took the cap off and put back on...

So yeah..... LMAO
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Old 01-10-2010, 09:25 PM   #8
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Ok, just making sure. Don't want to be throwing out ideas to ya if the very bare minimum hadn't been covered.
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Old 01-10-2010, 09:31 PM   #9
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Make sure the filler neck and the cap gasket are VERY clean. Grit or sand will break the seal and set off the code. Try some light grease on the cap gasket and drive it for 300 miles or so and see if the light goes out. That was my problem on my 2002 and wife'* Explorer.
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Old 01-11-2010, 04:42 PM   #10
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I just replaced my first gas cap three weeks ago. I had an SES light and then the DIC displayed the message"Check Gas Cap".

It was the gas cap.
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