Gas cap code and check engine light

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kardez

TYF Newbie
Joined
Nov 29, 2015
Posts
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Location
Grand Prairie, TX
In the past 2 years I have been fighting the evap code on my 2005 yukonxl. I have had it leak tested three times, I have replaced the charcoal canister, the valve, and solenoid twice. for the last 4 months I have not had any problem until two days ago when the temp dropped here in dallas. I think that this happens more often when the temp drops. I read in another forum about a pressure sensor next to the tank. Does anyone have any advice about this situation or can follow up with more info about this tank pressure sensor. I love this truck and not wanting to sell it, but I am really getting tired of the same problem over and over. Any help and advice will be greatly appreciated. Thanks
 

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