Chevrolet Express 2004–2007 — technical service bulletin
Bulletin 3068 · NHTSA communication 10009606 · issued Oct 8, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2007
model years
34
vehicle entries
Official summary
Oil seepage from turbo air charge cooler hoses or hose blowing off during acceleration. Possible diagnostic trouble code p0299. *tt updated 04-24-07. *kb
Vehicles covered
- 2004 Chevrolet Express
- 2005 Chevrolet Express
- 2006 Chevrolet Express
- 2007 Chevrolet Express 1500
- 2007 Chevrolet Express 2500
- 2007 Chevrolet Express 3500
- 2004 Chevrolet Kodiak
- 2005 Chevrolet Kodiak
- 2006 Chevrolet Kodiak
- 2007 Chevrolet Kodiak
- 2004 Chevrolet Silverado
- 2005 Chevrolet Silverado
- 2006 Chevrolet Silverado
- 2007 Chevrolet Silverado 1500
- 2007 Chevrolet Silverado 2500
- 2007 Chevrolet Silverado 3500
- 2004 GMC Savana
- 2005 GMC Savana
- 2006 GMC Savana
- 2007 GMC Savana 1500
- 2007 GMC Savana 2500
- 2007 GMC Savana 3500
- 2004 GMC Sierra
- 2005 GMC Sierra
- 2006 GMC Sierra
- 2007 GMC Sierra 1500
- 2007 GMC Sierra 2500
- 2007 GMC Sierra 3500
- 2004 GMC Topkick
- 2005 GMC Topkick
- 2006 GMC Topkick
- 2007 GMC Topkick
- 2006 GMC Topkick 6500
- 2006 GMC Topkick 8500
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.