Chevrolet Conventional 2001–2010 — technical service bulletin
Bulletin PI1391 · NHTSA communication 10139418 · issued Jan 15, 2015
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001–2010
model years
60
vehicle entries
Official summary
This preliminary informational bulletin provides a diagnostic tip for coolant leak at oil cooler inlet pipe o-ring after service engine replacement.
Vehicles covered
- 2003 Chevrolet Conventional
- 2003 Chevrolet C Series
- 2004 Chevrolet C Series
- 2005 Chevrolet C Series
- 2006 Chevrolet C Series
- 2007 Chevrolet C Series
- 2008 Chevrolet C Series
- 2009 Chevrolet C Series
- 2006 Chevrolet Express
- 2007 Chevrolet Express
- 2008 Chevrolet Express
- 2009 Chevrolet Express
- 2010 Chevrolet Express
- 2001 Chevrolet Silverado 1500
- 2002 Chevrolet Silverado 1500
- 2003 Chevrolet Silverado 1500
- 2004 Chevrolet Silverado 1500
- 2005 Chevrolet Silverado 1500
- 2006 Chevrolet Silverado 1500
- 2007 Chevrolet Silverado 1500
- 2008 Chevrolet Silverado 1500
- 2009 Chevrolet Silverado 1500
- 2010 Chevrolet Silverado 1500
- 2002 Chevrolet Silverado 1500 HD
- 2003 Chevrolet Silverado 1500 HD
- 2004 Chevrolet Silverado 1500 HD
- 2005 Chevrolet Silverado 1500 HD
- 2001 Chevrolet Silverado 2500
- 2002 Chevrolet Silverado 2500
- 2003 Chevrolet Silverado 2500
- 2004 Chevrolet Silverado 2500
- 2005 Chevrolet Silverado 2500
- 2006 Chevrolet Silverado 2500
- 2007 Chevrolet Silverado 2500
- 2008 Chevrolet Silverado 2500
- 2009 Chevrolet Silverado 2500
- 2010 Chevrolet Silverado 2500
- 2001 Chevrolet Silverado 3500
- 2002 Chevrolet Silverado 3500
- 2003 Chevrolet Silverado 3500
- 2004 Chevrolet Silverado 3500
- 2005 Chevrolet Silverado 3500
- 2006 Chevrolet Silverado 3500
- 2007 Chevrolet Silverado 3500
- 2008 Chevrolet Silverado 3500
- 2009 Chevrolet Silverado 3500
- 2010 Chevrolet Silverado 3500
- 2003 Chevrolet T Series
- 2004 Chevrolet T Series
- 2005 Chevrolet T Series
- 2010 Chevrolet T Series
- 2004 GMC C Series
- 2005 GMC C Series
- 2006 GMC C Series
- 2001 GMC GM
- 2002 GMC GM
- 2003 GMC G Series
- 2006 GMC Savana
- 2007 GMC Savana
- 2008 GMC Savana
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.