Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum banner

replaced for $15.28

  1. [SOLVED] Code PO496

    OEM Issues
    I have a trouble code indication PO496 which I believe is: EVAP flow during a non purge condition. Also have a hard start (flooding) after fill up. Has anyone experienced this condition and where is the canister and purge valve? 2007 Denali with 123k. Dave:undecided