where is the evaporator check valve located? Code is major leak or bad valve. on 2005 Chevrolet Uplander

Gas Cap and Chk eng lights.

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2 answers 1 comment
usually under the vehicle...at the canister.
where is ths canister located on 2005 chev uplander
You might want to have your mechanic do a "smoke test" also to check for leaks. Let us know if we can help autogonc@gmail.com