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I have a 2005 GMC Canyon, and I am experiencing exhaust or fuel fumes in the cab

malconatermalconater Member Posts: 7
edited February 2015 in GMC
If I remove the air filter the problem stops. Please help.....
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Answers

  • ray80ray80 Member Posts: 1,655
    What Air filter was removed, engine or cabin?
  • malconatermalconater Member Posts: 7
    engine
  • ray80ray80 Member Posts: 1,655
    While you wait for someone thats might actually know what it may be, I might wonder about stuck open PCV valve or something like that (if so equipped)
  • malconatermalconater Member Posts: 7
    I have a PCV hose but I do not see a valve.
  • ray80ray80 Member Posts: 1,655
    It would be on valve cover side. How does that air filter look BTW?
  • malconatermalconater Member Posts: 7
    The air filter looked okay, I left it out and and made sure everything from the air filter to the Throttle body was correct and tight, and the problem stopped. I then installed a new air filter and the problem returned.
  • ray80ray80 Member Posts: 1,655
    We will have to wait for someone that knows more then I do, but while we do what engine and how many miles on it (may help )
  • malconatermalconater Member Posts: 7
    It is a 4 Cylinder, 5 Speed, nearing a hundred thousand miles.
  • malconatermalconater Member Posts: 7
    and Thank you ray80
  • eliaselias Member Posts: 2,209
    can you hear any louder exhaust noise than before ,consistent with cracked exhaust manifold? i'm 84% sure that you can safely do a test run safely with the PVC hose blocked with a pencil or whatever is right size to block it. also consider check the charcoal/evap system, could there be a loose/cracked hose there actually the cause? have you looked for any stored/silent OBD codes?
  • steverstever Guest Posts: 52,454
    Terrific! Thanks for reporting back.
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