Chevrolet Avalanche 1500 2007–2008 — technical service bulletin
Bulletin 3917 · NHTSA communication 10022901 · issued Dec 1, 2007
Technical service bulletin
communication type
Engine and Engine Cooling
component
2007–2008
model years
17
vehicle entries
Official summary
Engine has low power on acceleration or when towing. Equipped with the 6.0l ly6 and l76 engine. *nj updated 1/29/08. *nj
Vehicles covered
- 2007 Chevrolet Avalanche 1500
- 2008 Chevrolet Avalanche 1500
- 2007 Chevrolet Avalanche 2500
- 2007 Chevrolet Silverado
- 2008 Chevrolet Silverado 1500
- 2008 Chevrolet Silverado 2500
- 2008 Chevrolet Silverado 3500
- 2008 Chevrolet Suburban 1500
- 2008 Chevrolet Suburban 2500
- 2007 Chevrolet Tahoe
- 2008 Chevrolet Tahoe
- 2008 GMC Sierra
- 2007 GMC Sierra 1500
- 2007 GMC Sierra 2500
- 2007 GMC Sierra 3500
- 2007 GMC Yukon
- 2008 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.