| Subject: | Information to Avoid Setting Diagnostic Trouble Code(s) (DTC) P0442 Small EVAP Leak and/or P0455 Large EVAP Leak When Hoisting Vehicle |
| Models: | 2004-2007 Chevrolet Malibu, Malibu MAXX |
This bulletin is being revised to include the 2007 model year and the Saturn Aura. Please discard Corporate Bulletin Number 05-06-04-004A (Section 06 - Engine).
A review of warranty repair orders and parts returned to GM for analysis suggests that EVAP canisters are being damaged when the vehicle is being put up on a hoist for service.
Incorrect placement of the hoist pads may cause a crack/leak in the EVAP canister plastic and eventually set one or both of the following DTCs:
| • | DTC P0442 - small EVAP leak detected |
| • | DTC P0455 - large EVAP leak detected |
To avoid this situation, particularly when using the type of hoist where the arms swing in and the pick up pads swivel, be sure of the placement of the pick up pads. If the pick up pads are not positioned correctly to the underbody pick up areas, this
type of damage may occur.
For additional information and detail, refer to Lifting and Jacking the Vehicle in SI.
