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2007 Chevrolet Tahoe Question: 2007 Tahoe code P0455

 

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smorrow0816, San Jose, CA, October 03, 2013, 22:12
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I have a 07 Tahoe. Recently the CIL came on with code P0455. The gas cap looks fine. I changed the Evap Solenoid, reset the CIL and it comes back on when the gas tank gets half empty. I tried another gas cap. No luck. Any suggestions next?

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  • Answer #1

    pushrod October 04, 2013, 04:19
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     Master

    Have the evap system smoke tested to find the leak. While tank is half full!!!! or less.

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    smorrow0816, October 04, 2013, 07:01
     Rookie

    Any good way for me to do the smoke test or is this a dealer thing. What do you think about the fuel tank pressure sensor?

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    pushrod, October 04, 2013, 07:38
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     Master

    It needs to go to A repair shop, not necessarily the dealer for testing and repair!!! Smoke machine and a professional scanner needed for ACCURATE test!

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    smorrow0816, October 04, 2013, 22:22
     Rookie

    One last thing....I also notice that when I pump gas, it stops numerous times making it hard to fill the tank. Any indicator of how that is related?

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  • Answer #2

    Greg's Orange Auto (13428 Answers) , Orange, CA - (714) 361-9386
    globalhelper October 04, 2013, 05:50
     Master

    agree with #1

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