Evap probs

Discussion in 'Chevy Blazer Forum (GMC Jimmy)' started by Chris309, Sep 5, 2016.

  1. Chris309

    Chris309 New Member

    Hi, I have an 03 Gmc Envoy,
    I have an Evap code. I can turn off the check eng light when the fuel tank is full and it will remain extinguished until the the fuel tank get to about 1/3 then the light comes back on.. Any ideas???

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