Chevrolet Astro 1991–1994 — technical service bulletin
Bulletin 476149 · NHTSA communication 37947 · issued Dec 1, 1994
Technical service bulletin
communication type
Unknown OR Other
component
1991–1994
model years
46
vehicle entries
Official summary
Oil pressure gauge reading concerns. *tw
Vehicles covered
- 1991 Chevrolet Astro
- 1992 Chevrolet Astro
- 1993 Chevrolet Astro
- 1994 Chevrolet Astro
- 1991 Chevrolet Blazer
- 1992 Chevrolet Blazer
- 1993 Chevrolet Blazer
- 1994 Chevrolet Blazer
- 1991 Chevrolet C Series(light)
- 1992 Chevrolet C Series(light)
- 1993 Chevrolet C Series(light)
- 1994 Chevrolet C Series(light)
- 1991 Chevrolet G Series
- 1992 Chevrolet G Series
- 1993 Chevrolet G Series
- 1994 Chevrolet G Series
- 1991 Chevrolet P Series
- 1992 Chevrolet P Series
- 1993 Chevrolet P Series
- 1994 Chevrolet P Series
- 1991 Chevrolet S10
- 1992 Chevrolet S10
- 1993 Chevrolet S10
- 1994 Chevrolet S10
- 1991 GMC C Series(light)
- 1992 GMC C Series(light)
- 1993 GMC C Series(light)
- 1994 GMC C Series(light)
- 1991 GMC G Series
- 1992 GMC G Series
- 1993 GMC G Series
- 1994 GMC G Series
- 1991 GMC Jimmy
- 1992 GMC Jimmy
- 1993 GMC Jimmy
- 1994 GMC Jimmy
- 1991 GMC P Series
- 1992 GMC P Series
- 1993 GMC P Series
- 1994 GMC P Series
- 1991 GMC Safari
- 1992 GMC Safari
- 1993 GMC Safari
- 1994 GMC Safari
- 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.