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2002 GMC SONOMA CODE P 0442

\015 LIGHT CAME ON STEADY 60 MILES AGO\015 Posted / edited by AnonymousUser on : 18-12-2017

Answers :

Code 442 is a common code for a small leak in the EVAP system. The computer vents the gas tank to the vapor canister when the engine is running. The computer checks for leaks also.
The EVAP system would need to be checked for leaks.
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