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International Automotive Technicians Network
Re: 2018 Traverse P0455
Posted to Technical Discussion Forum on 1/10/2024

As others have said, short of a smoke test the first thing I'd be looking at is the vent solenoid at the front of the EVAP canister (forward of fuel tank, left side). I've seen this style stick, as well as being an optimal place for wiring-hungry rodents (alth... Login to read more.