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Josh12934

03-01-2019 05:44 PM

Evap Problems P0442,P0446,P0455,P0496

I have a 2003 silverado 15004.3L it's throwing codes P0442,P0446,P0455,P0496 I have changed the charcoal canister vent valve, purge valve, gas cap reset the codes and they haven't gone away any ideas on what It could be or what i can do will be greatly appreciated

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