Evap system

Asked by Kevin Aug 21, 2019 at 02:39 AM about the 2005 Chevrolet Trailblazer LS 4WD

Question type: Maintenance & Repair

I get codes for evap large leak, small leak, control system vent control circuit,
flow during a non-purge condition. (P0455, P0442, P0446, P0496 respectively)

1 Answer
11,555

FJ4072 answered 5 years ago

Pretty common for our purge valve solenoid to go bad and cause these codes. BUT, instead of throwing parts at it, could be other things. Get it smoked to find the leak.

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