Technical Service Bulletins of the 1991 GMC C Series(light)

There have been 6 technical service bulletins issued for the 1991 GMC C Series(light).

1 1991 GMC C Series(light) exhaust system emission control TSB (Bulletin RCL/91C50)

Bulletin Date: Feb. 1, 1995
Component: Exhaust system emission control.
Bulletin Summary: California recall - general motors has determined that certain 1991 c/k trucks, m/l and g vans with 4. 3l engines may be emitting non-methane hydrocarbons in excess of California emission standards. To correct this condition, dealers are t
Vehicles covered in this TSB:
1991 Chevrolet Astro, 1991 Chevrolet C Series (light), 1991 Chevrolet G Series, 1991 GMC C Series(light), 1991 GMC G Series, 1991 GMC Safari.

2 1991 GMC C Series(light) gasoline engine TSB (Bulletin 376105)

Bulletin Date: Feb. 1, 1995
Component: Gasoline engine.
Bulletin Summary: cold engine knock.
Vehicles covered in this TSB:
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, 1991 Chevrolet P, 1992 Chevrolet P, 1993 Chevrolet P, 1994 Chevrolet P, 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.

3 1991 GMC C Series(light) exhaust system emission control TSB (Bulletin CAMP/91C50)

Bulletin Date: Feb. 1, 1995
Component: Exhaust system emission control.
Bulletin Summary: Unknown
Vehicles covered in this TSB:
1991 Chevrolet G Series, 1991 GMC C Series(light), 1991 GMC Safari.

4 1991 GMC C Series(light) windshield wiper/washer TSB (Bulletin 568201)

Bulletin Date: Jan. 1, 1995
Component: Windshield wiper/washer.
Bulletin Summary: wiper blade chatter.
Vehicles covered in this TSB:
1988 Chevrolet C Series (light), 1989 Chevrolet C Series (light), 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 Kodiak, 1991 Chevrolet Kodiak, 1992 Chevrolet Kodiak, 1993 Chevrolet Kodiak, 1994 Chevrolet Kodiak, 1988 GMC C Series(light), 1989 GMC C Series(light), 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).

5 1991 GMC C Series(light) manifold/header/muffler/tail pipe TSB (Bulletin 376602A)

Bulletin Date: Jan. 1, 1995
Component: Manifold/header/muffler/tail pipe.
Bulletin Summary: new cast iron exhaust manifold and stainless steel gasket to correct engine noise condition.
Vehicles covered in this TSB:
1982 Chevrolet C Series (light), 1983 Chevrolet C Series (light), 1984 Chevrolet C Series (light), 1985 Chevrolet C Series (light), 1986 Chevrolet C Series (light), 1987 Chevrolet C Series (light), 1988 Chevrolet C Series (light), 1989 Chevrolet C Series (light), 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), 1995 Chevrolet C Series (light), 1982 Chevrolet G Series, 1983 Chevrolet G Series, 1984 Chevrolet G Series, 1985 Chevrolet G Series, 1986 Chevrolet G Series, 1987 Chevrolet G Series, 1988 Chevrolet G Series, 1989 Chevrolet G Series, 1990 Chevrolet G Series, 1991 Chevrolet G Series, 1992 Chevrolet G Series, 1993 Chevrolet G Series, 1994 Chevrolet G Series, 1995 Chevrolet G Series, 1982 Chevrolet P, 1983 Chevrolet P, 1984 Chevrolet P, 1985 Chevrolet P, 1986 Chevrolet P, 1987 Chevrolet P, 1988 Chevrolet P, 1989 Chevrolet P, 1990 Chevrolet P, 1991 Chevrolet P, 1992 Chevrolet P, 1993 Chevrolet P, 1994 Chevrolet P, 1995 Chevrolet P, 1982 Chevrolet Suburban, 1983 Chevrolet Suburban, 1984 Chevrolet Suburban, 1985 Chevrolet Suburban, 1986 Chevrolet Suburban, 1987 Chevrolet Suburban, 1988 Chevrolet Suburban, 1989 Chevrolet Suburban, 1990 Chevrolet Suburban, 1991 Chevrolet Suburban, 1992 Chevrolet Suburban, 1993 Chevrolet Suburban, 1994 Chevrolet Suburban, 1995 Chevrolet Suburban, 1982 GMC C Series(light), 1983 GMC C Series(light), 1984 GMC C Series(light), 1985 GMC C Series(light), 1986 GMC C Series(light), 1987 GMC C Series(light), 1988 GMC C Series(light), 1989 GMC C Series(light), 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), 1995 GMC C Series(light), 1982 GMC G Series, 1983 GMC G Series, 1984 GMC G Series, 1985 GMC G Series, 1986 GMC G Series, 1987 GMC G Series, 1988 GMC G Series, 1989 GMC G Series, 1990 GMC G Series, 1991 GMC G Series, 1992 GMC G Series, 1993 GMC G Series, 1994 GMC G Series, 1995 GMC G Series, 1982 GMC P Series, 1983 GMC P Series, 1984 GMC P Series, 1985 GMC P Series, 1986 GMC P Series, 1987 GMC P Series, 1988 GMC P Series, 1989 GMC P Series, 1990 GMC P Series, 1991 GMC P Series, 1992 GMC P Series, 1993 GMC P Series, 1994 GMC P Series, 1995 GMC P Series, 1982 GMC Suburban, 1983 GMC Suburban, 1984 GMC Suburban, 1985 GMC Suburban, 1986 GMC Suburban, 1987 GMC Suburban, 1988 GMC Suburban, 1989 GMC Suburban, 1990 GMC Suburban, 1991 GMC Suburban, 1992 GMC Suburban, 1993 GMC Suburban, 1995 GMC Suburban.

6 1991 GMC C Series(light) unknown or other TSB (Bulletin 476149)

Bulletin Date: Dec. 1, 1994
Component: Unknown or other.
Bulletin Summary: oil pressure gauge reading concerns.
Vehicles covered in this TSB:
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, 1992 Chevrolet P, 1993 Chevrolet P, 1994 Chevrolet P, 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.


Also see GMC vehicle common problems.