January 15, 2015 Service bulletin

Engine and engine cooling

Chevrolet technical service bulletin PI1391 for 2001-2010 Chevrolet Silverado 1500, 2001-2010 GMC Sierra 1500 and 2001-2010 Chevrolet Silverado 2500 and others.

Bulletin number: PI1391
Component: Engine and engine cooling
Summary: This preliminary informational bulletin provides a diagnostic tip for coolant leak at oil cooler inlet pipe o-ring after service engine replacement.

Owners of these vehicles have filed 1,028 complaints in the engine category.

Vehicles covered

Chevrolet Silverado 1500 2001-2010 2003 2004 2005 2006 2007 2008 2009 2010
GMC Sierra 1500 2001-2010 2003 2004 2005 2006 2007 2008 2009 2010
Chevrolet Silverado 2500 2001-2010 2003 2004 2005 2006 2007 2008 2009 2010
GMC Sierra 2500 2001-2010 2003 2004 2005 2006 2007 2008 2009 2010
Chevrolet Silverado 3500 2001-2010 2003 2004 2005 2006 2007 2008 2009 2010
Chevrolet Express 2006-2010 2006 2007 2008 2009 2010
GMC Sierra 3500 2001-2010 2003 2004 2005 2006 2007 2008 2009 2010
GMC Savana 2006-2010 2006 2007 2008 2009 2010
GMC Sierra Denali 2007-2010 2007 2008 2009 2010
Chevrolet Silverado 1500 HD 2002-2005 2002 2003 2004 2005
Chevrolet C Series 2003-2009 2003 2004 2005 2006 2007 2008 2009
Chevrolet Conventional 2003 2003
GMC C Series 2004-2006 2004 2005 2006
GMC GM 2001-2002 2001 2002
GMC G Series 2003 2003
GMC Topkick 2003-2010 2003 2004 2005 2006 2007 2008 2009 2010
Chevrolet T-Series 2003-2005, 2010 2003 2004 2005 2010

VIN decoder

See the problems and recalls for an exact car

Buying a used Chevrolet Silverado 1500?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history