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  1. J

    07 Yukon error code P0455 coming back after replacing vent valve

    After a few weeks code came back, I cleared it and now I have the P0496 code. Any suggestions?
  2. J

    07 Yukon error code P0455 coming back after replacing vent valve

    I bought an OEM gas cap, cleared the CEL and all is fine now. Looks like it was a misdiagnosis of my mechanic. Thanks all for your help!
  3. J

    Backup alarm wiring question

    Hi all. I installed a backup alarm on my 07 yukon, I did not connect it to the tail light directly because I wanted a switch at my console, so I wired it to the front. But now I don't know which wire to tap into to get + power (ground I took from under the vehicle) Please have in mind I...
  4. J

    07 Yukon error code P0455 coming back after replacing vent valve

    Ok. So I changed the gas cap ( bought at dealer for $40) cleared the CEL and so far it didn't come back on after 200 miles. Let's hope it stays that way. Thanks all for your help!
  5. J

    07 Yukon error code P0455 coming back after replacing vent valve

    Ok so a little update. I went back to the mechanic for another smoke test, this time the smoke came out of the end piece of the vent valve assembly, a small black plastic box, it looks like a filter. Could someone suggest what the issue might be? could the part be defective? or is the...
  6. J

    07 Yukon error code P0455 coming back after replacing vent valve

    Thanks phaplre. I guess i should take a second look to see what i missed when i changed the solenoid. My next step would be another smoke test to rule out another leak. Thanks guys.
  7. J

    07 Yukon error code P0455 coming back after replacing vent valve

    Hi Everyone! First of all thank you for accepting me as a member on this awesome forum. As you see i am a new member, as well as a new owner of a used 2007 Yukon, i found some issues with my truck, and as well looking to upgrade some features myself. So not to overwhelm my dear friends...

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