04 chevy cavalier check engine light code is P0442 which is evap purge control valve where is that located on engine
This is a generic image of an EVAP system. Not specific to your car, but they are all the same or near same I could not find where the charcoal canister is on that Cav. But it's near the canister, click for full screen
is it by engine or under by tank?
Actually that trouble code is for a small EVAP system leak. It could be anywhere in the system including a faulty gas cap. It's best to have a smoke test done to find the leak. It could be a tiny pinhole in one of the EVAP lines that can't be seen with the naked eye. Have the gas cap tested as well. HTH. -Jim
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