Chevrolet Astro 1990–1994 — technical service bulletin
Bulletin 376105 · NHTSA communication 39304 · issued Feb 1, 1995
Technical service bulletin
communication type
Engine and Engine Cooling
component
1990–1994
model years
60
vehicle entries
Official summary
COLD ENGINE KNOCK. *TW
Vehicles covered
- 1990 Chevrolet Astro
- 1991 Chevrolet Astro
- 1992 Chevrolet Astro
- 1993 Chevrolet Astro
- 1994 Chevrolet Astro
- 1990 Chevrolet C Series(light)
- 1991 Chevrolet C Series(light)
- 1992 Chevrolet C Series(light)
- 1993 Chevrolet C Series(light)
- 1994 Chevrolet C Series(light)
- 1990 Chevrolet G Series
- 1991 Chevrolet G Series
- 1992 Chevrolet G Series
- 1993 Chevrolet G Series
- 1994 Chevrolet G Series
- 1990 Chevrolet P Series
- 1991 Chevrolet P Series
- 1992 Chevrolet P Series
- 1993 Chevrolet P Series
- 1994 Chevrolet P Series
- 1990 Chevrolet S10
- 1991 Chevrolet S10
- 1992 Chevrolet S10
- 1993 Chevrolet S10
- 1994 Chevrolet S10
- 1990 Chevrolet Suburban
- 1991 Chevrolet Suburban
- 1992 Chevrolet Suburban
- 1993 Chevrolet Suburban
- 1994 Chevrolet Suburban
- 1990 GMC C Series(light)
- 1991 GMC C Series(light)
- 1992 GMC C Series(light)
- 1993 GMC C Series(light)
- 1994 GMC C Series(light)
- 1990 GMC G Series
- 1991 GMC G Series
- 1993 GMC G Series
- 1990 GMC Jimmy
- 1991 GMC Jimmy
- 1992 GMC Jimmy
- 1993 GMC Jimmy
- 1994 GMC Jimmy
- 1990 GMC P Series
- 1991 GMC P Series
- 1992 GMC P Series
- 1993 GMC P Series
- 1994 GMC P Series
- 1990 GMC Safari
- 1991 GMC Safari
- 1992 GMC Safari
- 1993 GMC Safari
- 1994 GMC Safari
- 1990 GMC Suburban
- 1991 GMC Suburban
- 1992 GMC Suburban
- 1993 GMC Suburban
- 1994 GMC Suburban
- 1991 Oldsmobile Bravada
- 1992 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.