Chevrolet Express 1500 2007–2008 — technical service bulletin
Bulletin 4147 · NHTSA communication 10022592 · issued Dec 1, 2007
Technical service bulletin
communication type
Engine and Engine Cooling
component
2007–2008
model years
19
vehicle entries
Official summary
Duramax diesels with ses light and dtc p0402. *kb updated 2/27/08. *nj
Vehicles covered
- 2007 Chevrolet Express 1500
- 2007 Chevrolet Express 2500
- 2007 Chevrolet Express 3500
- 2007 Chevrolet Kodiak
- 2008 Chevrolet Kodiak
- 2007 Chevrolet Silverado 1500
- 2008 Chevrolet Silverado 1500
- 2007 Chevrolet Silverado 2500
- 2008 Chevrolet Silverado 2500
- 2007 Chevrolet Silverado 3500
- 2008 Chevrolet Silverado 3500
- 2007 GMC Savana 1500
- 2007 GMC Savana 2500
- 2007 GMC Savana 3500
- 2008 GMC Sierra
- 2007 GMC Sierra 1500
- 2007 GMC Sierra 2500
- 2007 GMC Sierra 3500
- 2007 GMC Topkick
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.