Chevrolet Express 2001–2006 — technical service bulletin
Bulletin 030693001 · NHTSA communication 10020839 · issued May 1, 2006
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001–2006
model years
21
vehicle entries
Official summary
Diagnostic information on turbocharger malfunction due to lack of engine oil for lbz, lb7, and lly duramax diesel engine. *kb
Vehicles covered
- 2006 Chevrolet Express
- 2003 Chevrolet Kodiak
- 2004 Chevrolet Kodiak
- 2005 Chevrolet Kodiak
- 2006 Chevrolet Kodiak
- 2001 Chevrolet Silverado
- 2002 Chevrolet Silverado
- 2003 Chevrolet Silverado
- 2004 Chevrolet Silverado
- 2005 Chevrolet Silverado
- 2006 Chevrolet Silverado
- 2006 GMC Savana
- 2001 GMC Sierra
- 2002 GMC Sierra
- 2003 GMC Sierra
- 2004 GMC Sierra
- 2005 GMC Sierra
- 2006 GMC Sierra
- 2003 GMC Topkick
- 2004 GMC Topkick
- 2005 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.