Chevrolet Blazer 1997–2002 — technical service bulletin
Bulletin 020605002 · NHTSA communication 634729 · issued May 1, 2002
Technical service bulletin
communication type
Engine and Engine Cooling
component
1997–2002
model years
35
vehicle entries
Official summary
Some customers may comment on an exhaust boom / groan noise in the passenger compartment. *tt
Vehicles covered
- 1997 Chevrolet Blazer
- 1998 Chevrolet Blazer
- 1999 Chevrolet Blazer
- 2000 Chevrolet Blazer
- 2001 Chevrolet Blazer
- 2002 Chevrolet Blazer
- 1997 Chevrolet S10
- 1998 Chevrolet S10
- 1999 Chevrolet S10
- 2000 Chevrolet S10
- 2001 Chevrolet S10
- 2002 Chevrolet S10
- 1997 GMC Envoy
- 1998 GMC Envoy
- 1999 GMC Envoy
- 2000 GMC Envoy
- 2001 GMC Envoy
- 2002 GMC Envoy
- 1997 GMC Jimmy
- 1998 GMC Jimmy
- 1999 GMC Jimmy
- 2000 GMC Jimmy
- 2001 GMC Jimmy
- 2002 GMC Jimmy
- 1997 GMC S15
- 1998 GMC S15
- 1999 GMC S15
- 2000 GMC S15
- 2001 GMC S15
- 2002 GMC S15
- 1997 Oldsmobile Bravada
- 1998 Oldsmobile Bravada
- 1999 Oldsmobile Bravada
- 2000 Oldsmobile Bravada
- 2001 Oldsmobile Bravada
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.