October 1, 2008 Service bulletin

Gmc: fluid leak from transmission oil cooler lines due to corrosion. all 2000-2006 light duty trucks...

Chevrolet technical service bulletin PIT-4722 for 2000-2006 Chevrolet Silverado, 2000-2006 Chevrolet Suburban and 2000-2006 Chevrolet Blazer and others.

Bulletin number: PIT-4722
Component: Power train: automatic transmission: cooling unit and lines
Summary: Gmc: fluid leak from transmission oil cooler lines due to corrosion. All 2000-2006 light duty trucks equipped with the light duty automatic transmission.

Owners of these vehicles have filed 1,942 complaints in the transmission category.

Vehicles covered

Chevrolet Silverado 2000-2006 2000 2001 2002 2003 2004 2005 2006
Chevrolet Suburban 2000-2006 2000 2001 2002 2003 2004 2005 2006
Chevrolet Blazer 2000-2006 2000 2001 2002 2003 2004 2005 2006
Chevrolet Trailblazer 2000-2006 2000 2001 2002 2003 2004 2005 2006
GMC Yukon 2000-2006 2000 2001 2002 2003 2004 2005 2006
GMC Sierra 2000-2006 2000 2001 2002 2003 2004 2005 2006
GMC Jimmy 2000-2004 2000 2001 2002 2003 2004
GMC Envoy 2000-2006 2000 2001 2002 2003 2004 2005 2006
Chevrolet Avalanche 2000-2006 2000 2001 2002 2003 2004 2005 2006
Cadillac Escalade 2000-2006 2000 2001 2002 2003 2004 2005 2006
GMC Sonoma 2000-2006 2000 2001 2002 2003 2004 2005 2006
Oldsmobile Bravada 2000-2004 2000 2001 2002 2003 2004
Hummer H3 2004-2006 2004 2005 2006
Cadillac Escalade ESV 2003-2006 2003 2004 2005 2006
Buick Rainier 2004-2006 2004 2005 2006
Hummer H2 2004-2006 2004 2005 2006
GMC Denali 2000-2003 2000 2001 2002 2003
Saab 9-7X 2005-2006 2005 2006
Cadillac Escalade EXT 2002-2006 2002 2003 2004 2005 2006
Hummer H2 SUT 2004-2006 2004 2005 2006

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