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ndnsmiff

ndnsmiff 10/17/2011

2005 Chevrolet Equinox LT 6 Cyl 3.40L

Engine

What is code P0442? How must i go about it?

How do i fix the problem?

1 Answer


CVO

CVO 10/18/2011

Causes
A code P0442 most likely means one or more of the following has happened:

A loose or improperly affixed gas cap
A non-conforming gas cap (i.e. not factory/original brand)
A small leak/hole in a fuel vapor hose/tube
Other small leak in EVAP system
Faulty vent o-ring seal

Possible Solutions
With a P0442, the most common repair is to:

Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
Otherwise, replace the gas cap, or
Inspect the EVAP system for cuts/holes in tubes/hoses

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