Chevrolet Avalanche 2001–2004 — technical service bulletin
Bulletin 040601018 · NHTSA communication 10012143 · issued Jun 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001–2004
model years
18
vehicle entries
Official summary
Information on revised design of intake gasket and related bolts for 2004 mid-year enhancement and prior year service usage. *tt
Vehicles covered
- 2002 Chevrolet Avalanche
- 2003 Chevrolet Avalanche
- 2004 Chevrolet Avalanche
- 2001 Chevrolet Kodiak
- 2003 Chevrolet Kodiak
- 2001 Chevrolet Silverado
- 2002 Chevrolet Silverado
- 2003 Chevrolet Silverado
- 2004 Chevrolet Silverado
- 2001 GMC Sierra
- 2002 GMC Sierra
- 2003 GMC Sierra
- 2004 GMC Sierra
- 2003 GMC Topkick
- 2001 GMC Yukon
- 2002 GMC Yukon
- 2003 GMC Yukon
- 2004 GMC Yukon
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.