AM General Hummer 1999–2003 — technical service bulletin
Bulletin 3232 · NHTSA communication 10011692 · issued Jan 28, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999–2003
model years
52
vehicle entries
Official summary
Misfire at idle cold and possible p0171 and or p0174. *eh
Vehicles covered
- 2003 AM General Hummer
- 2002 Cadillac Escalade
- 2003 Cadillac Escalade
- 1999 Chevrolet Avalanche
- 2000 Chevrolet Avalanche
- 2001 Chevrolet Avalanche
- 2002 Chevrolet Avalanche
- 2003 Chevrolet Avalanche
- 1999 Chevrolet Envoy
- 2000 Chevrolet Envoy
- 2001 Chevrolet Envoy
- 2002 Chevrolet Envoy
- 1999 Chevrolet Express
- 2000 Chevrolet Express
- 2001 Chevrolet Express
- 2002 Chevrolet Express
- 2003 Chevrolet Express
- 1999 Chevrolet Sierra
- 2000 Chevrolet Sierra
- 2001 Chevrolet Sierra
- 2002 Chevrolet Sierra
- 2003 Chevrolet Sierra
- 1999 Chevrolet Silverado
- 2000 Chevrolet Silverado
- 2001 Chevrolet Silverado
- 2002 Chevrolet Silverado
- 2003 Chevrolet Silverado
- 1999 Chevrolet Suburban
- 2000 Chevrolet Suburban
- 2001 Chevrolet Suburban
- 2002 Chevrolet Suburban
- 2003 Chevrolet Suburban
- 1999 Chevrolet Tahoe
- 2000 Chevrolet Tahoe
- 2001 Chevrolet Tahoe
- 2002 Chevrolet Tahoe
- 2003 Chevrolet Tahoe
- 1999 Chevrolet Trailblazer
- 2000 Chevrolet Trailblazer
- 2001 Chevrolet Trailblazer
- 2002 Chevrolet Trailblazer
- 2003 Chevrolet Trailblazer
- 1999 Chevrolet Yukon
- 2000 Chevrolet Yukon
- 2001 Chevrolet Yukon
- 2002 Chevrolet Yukon
- 2003 Chevrolet Yukon
- 1999 GMC Savana
- 2000 GMC Savana
- 2001 GMC Savana
- 2002 GMC Savana
- 2003 GMC Savana
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.