Sierra 1500 2WD V8-5.3L VIN Z Flex Fuel (2006)
To correct this condition, replace the case cover (channel plate) gaskets (429 and 430). Refer to Unit Repair publication in SI of the appropriate vehicle
being serviced.
Visual inspection of the upper gasket (1) will reveal damage at the referenced area.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Technical Service Bulletin # 06-07-30-016
Date: 060718
A/T - 4L60-E, 4L65-E Fluid Leak From Bell Housing Area
Bulletin No.: 06-07-30-016
Date: July 18, 2006
TECHNICAL
Subject:
4L60-E, 4L65-E Automatic Transmission Fluid Leak from Oil Pump or Bell Housing Area (Remove Small Burrs On Torque Converter Hub, Pump
Drive Slots and Replace Torque Converter Hub-to-Oil Pump Seal Assembly (243))
Models:
2006 Buick Rainier
2006 Cadillac Escalade, Escalade ESV, Escalade EXT
2006 Chevrolet Colorado, Corvette, Express, Silverado, SSR, TrailBlazer
2006-2007 Chevrolet Avalanche, Suburban, Tahoe
2006 GMC Canyon, Envoy, Savana, Sierra