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P0442 Diagnostic Trouble Code Discussion for October 2017

EVAP System Small Leak Detected


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Trouble Ticket Help Requests for DTC P0442
Help Request Posted
2008 Chevrolet Suburban 1500 LTZ 5.3L p0442 small leak VIN: 3GNFK16308
P0442: small evap leak. so it has a p0442 code for evap small leak I have checked and verified that both evap purge and vent solinods are working also smoke tested and found no leak at all I checked gas cap that is fine and all hoses .I checked voltage on ftp sensor and that at 1.5 v...
October 16, 2017