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P0442 Diagnostic Trouble Code Discussion for August 2009

EVAP System Small Leak Detected

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Trouble Ticket Help Requests for DTC P0442
Help Request Posted
2001 GMC Yukon SLE 5.3L MIL Lamp on VIN: 1GKEK13T41
P0442: EVAP System Small Leak Detected. ... right direction because this small leak is killing me. Yukon came in with check engine light on with p0442 small evap leak. closed system with scanner and smoked it. found evap vent valve leaking as well as fuel cap. vent valve leaking pretty bad so we rep...
August 06, 2009
2001 Pontiac Grand Am SE 2.4L MIL Lamp on VIN: 1G2NF52T51
P0442: EVAP System Small Leak (0.040") Detected. ... have the 2001 Grand Am with a 2.4 Quad Four engine. It keeps popping a p0442 code. We originally looked at it(smoke tested), and replaced the filler neck and gas cap with new GM parts. It came back a few days later with P0442 again. Resmoked it. No leaks. ...
August 17, 2009