Sierra Classic 2500 4WD V8-6.0L (2007)
Parts Information
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Technical Service Bulletin # 09-07-30-004C
Date: 110113
A/T - Shift Flare/Harsh 2-3 Shifts/Harsh Park To Drive
TECHNICAL
Bulletin No.: 09-07-30-004C
Date: January 13, 2011
Subject: Flare and/or Harsh 2-3 Shifts, Delayed/Extended or Delayed with Harsh Feel Initial Park to Drive and/or Reverse to Drive Shifts (Install Three
Fluid Seal Rings)
Models:
2007-2009 Cadillac Escalade, Escalade ESV, Escalade EXT
2007-2009 Chevrolet Silverado
2008-2009 Chevrolet Suburban
2009 Chevrolet Avalanche, Tahoe
2007-2009 GMC Sierra, Sierra Denali, Yukon Denali, Yukon XL Denali
2008-2009 GMC Yukon XL
2009 GMC Yukon
Equipped with 6L80 (RPO MYC) or 6L90 (RPO MYD) Automatic Transmission
Vehicles Built Prior to December 2008
Attention:
Vehicles built prior to December 2008 are more likely to have leaking fluid seal rings. Starting in November 2008, a new 2-piece seal was implemented.
When the transmission pump is removed and a 2-piece seal is found, do not continue on with this bulletin. The guidelines of this bulletin will not apply
to a 2-piece seal.
Supercede:
