Chevrolet Avalanche 2000–2004 — technical service bulletin
Bulletin 030601023 · NHTSA communication 10004370 · issued Aug 1, 2003
Technical service bulletin
communication type
Engine and Engine Cooling
component
2000–2004
model years
37
vehicle entries
Official summary
Higher than expected oil consumption <8500 gvw. Various models including 2003-2004 chevrolet kodiak (c4500-c5500 series models)and gmc topkick (c4500-c5500 series models). *tt
Vehicles covered
- 2002 Chevrolet Avalanche
- 2003 Chevrolet Avalanche
- 2004 Chevrolet Avalanche
- 2000 Chevrolet Express
- 2001 Chevrolet Express
- 2002 Chevrolet Express
- 2003 Chevrolet Express
- 2004 Chevrolet Express
- 2003 Chevrolet Kodiak
- 2000 Chevrolet Silverado
- 2001 Chevrolet Silverado
- 2002 Chevrolet Silverado
- 2003 Chevrolet Silverado
- 2004 Chevrolet Silverado
- 2000 Chevrolet Suburban
- 2001 Chevrolet Suburban
- 2002 Chevrolet Suburban
- 2003 Chevrolet Suburban
- 2004 Chevrolet Suburban
- 2000 GMC Savana
- 2001 GMC Savana
- 2002 GMC Savana
- 2003 GMC Savana
- 2004 GMC Savana
- 2000 GMC Sierra
- 2001 GMC Sierra
- 2002 GMC Sierra
- 2003 GMC Sierra
- 2004 GMC Sierra
- 2003 GMC Topkick
- 2000 GMC Yukon XL
- 2001 GMC Yukon XL
- 2002 GMC Yukon XL
- 2003 GMC Yukon XL
- 2004 GMC Yukon XL
- 2003 Hummer H2
- 2004 Hummer H2
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.