GM Service Manual Online
For 1990-2009 cars only

SMU - Revised DTC P1172 and DTC P2636

Subject:Revised DTC P1172 and DTC P2636

Models:2001-2005 Cadillac Escalade Models
2001-2005 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2001-2005 GMC Sierra, Yukon Models
with 4.8L, 5.3L, 6.0L or 8.1L Engine (VINs V, P, T, Z, U, N, G - RPOs LR4, LM4, LM7, L59, LQ4, LQ9, L18)



This bulletin is being issued to revise Step 29 of DTC P1172 and DTC P 2636 in the Engine Controls sub-section of the Service Manual. Please replace the current information in the Service Manual with the following information.

The following information has been updated within SI. If you are using a paper version of this Service Manual, please make a reference to this bulletin on the affected page.

Step 29 of both DTC P1172 and DTC P2636 should read - Replace the rear fuel sender assembly.