TSB Document:

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Hummer for this TSB. Call your local Hummer dealer's service department & ask for a copy of TSB# 050604055.

Affected Component: ENGINE AND ENGINE COOLING

Summary

SERVICE ENGINE SOON (SES) LIGHT ON, DIAGNOSTIC TROUBLE CODE(S) (DTC) P0442 SMALL EVAPORATIVE EMISSIONS (EVAP) LEAK AND/OR P0455 LARGE EVAP LEAK. *TT

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