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Q:

were is the canister purge valve located trying to change it and dont know were on 2003 Chevrolet S10

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
when i fill my tank its not letting the fumes go threw and it takes forvever to fill up
(1) Answer
I don't think problem is with your purge valve at all. Maybe hose that goes from filler neck down to fuel tank has a kink in it. Are you getting a check engine light? If you do have a purge valve problem you'd be getting a code pointing you in that direction.