Equinox AWD V6-3.4L (2008)
Fuel Filler Neck: Customer Interest
Fuel System - MIL ON/DTC's P0455/P0442
TECHNICAL
Bulletin No.: 09-06-04-001
Date: January 08, 2009
Subject:
Malfunction Indicator Lamp (MIL) Check Engine Light On, DTC P0442 or P0455 Set (Perform Outlined Repair)
Models:
2005-2008 Chevrolet Equinox
2006-2008 Pontiac Torrent
Condition
Some customers may comment on a check engine light on.
Upon further investigation, the technician may find DTC P0442 (EVAP small leak) or P0455 (EVAP large leak) set as current or in history.
Cause
This condition may be caused by the rubber grommet at the fuel tank filler neck not being properly seated. In some situations, the inner lip of the
grommet may ride over the top of the filler neck, preventing the fuel cap from tightening properly, resulting in poor sealing. This can set the small or
large leak diagnostic codes.
Correction
DO NOT replace the fuel cap for this condition. Follow the instructions listed below.
1.
Inspect the rubber grommet for damage. Replace if necessary.
2.
Ensure that the grommet is correctly seated to the fuel filler neck pocket.
3.
If the grommet is not correctly seated, use a non-metallic tool to push down on the inner lip of the grommet, folding it inward on the fill pipe. This
will prevent the possibility of the inner lip interfering with the fuel cap.
Warranty Information
