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P0442 - Small leak detected - evaporative system

trouble code question

P0442 - Small leak detected - evaporative system

Postby troyfast1 [OP] » Dec 07 2015, 3:14am

Trouble code P0442
I have seen many post saying to replace vent valve solenoid. previous owner replaced the solenoid by the fuel tank.. (not sure if new part is faulty)
cleared the code and it takes about 3 or 4 days for the check engine light to rear its ugly head.

My question is??? Trouble code stating. P0442 -small leak detected. DOES that usually mean the gas cap is bad ????? ( aftermarket gas cap on the vehicle )
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Re: P0442 - Small leak detected - evaporative system

Postby ASTE25 » Dec 07 2015, 11:52am

It is possible, but that's not the only thing that can cause the code.
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