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Technical Service Bulletins of the 1991 GMC G Series

There have been 10 technical service bulletins issued for the 1991 GMC G Series.

1 1991 GMC G Series gasoline engine TSB (Bulletin 000604002)

Bulletin Date: Jan. 1, 2000
Component: Gasoline engine.
Bulletin Summary: Subject regarding a hard, no start or excessive gray or white smoke condition on start up after recent glow plug replacement.
Vehicles covered in this TSB:
1982 Chevrolet C Series, 1983 Chevrolet C Series, 1984 Chevrolet C Series, 1985 Chevrolet C Series, 1986 Chevrolet C Series, 1987 Chevrolet C Series, 1988 Chevrolet C Series, 1989 Chevrolet C Series, 1990 Chevrolet C Series, 1991 Chevrolet C Series, 1992 Chevrolet C Series, 1993 Chevrolet C Series, 1994 Chevrolet C Series, 1995 Chevrolet C Series, 1996 Chevrolet C Series, 1997 Chevrolet C Series, 1998 Chevrolet C Series, 1999 Chevrolet C Series, 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, 1996 Chevrolet G Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1999 Chevrolet G Series, 1982 Chevrolet K Series, 1983 Chevrolet K Series, 1984 Chevrolet K Series, 1985 Chevrolet K Series, 1986 Chevrolet K Series, 1987 Chevrolet K Series, 1988 Chevrolet K Series, 1989 Chevrolet K Series, 1990 Chevrolet K Series, 1991 Chevrolet K Series, 1992 Chevrolet K Series, 1993 Chevrolet K Series, 1994 Chevrolet K Series, 1995 Chevrolet K Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1999 Chevrolet K 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, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1999 Chevrolet P, 1982 Chevrolet R Series, 1983 Chevrolet R Series, 1984 Chevrolet R Series, 1985 Chevrolet R Series, 1986 Chevrolet R Series, 1987 Chevrolet R Series, 1988 Chevrolet R Series, 1989 Chevrolet R Series, 1990 Chevrolet R Series, 1991 Chevrolet R Series, 1992 Chevrolet R Series, 1993 Chevrolet R Series, 1994 Chevrolet R Series, 1995 Chevrolet R Series, 1996 Chevrolet R Series, 1997 Chevrolet R Series, 1998 Chevrolet R Series, 1999 Chevrolet R Series, 2000 Chevrolet R Series, 1982 Chevrolet V Series, 1983 Chevrolet V Series, 1984 Chevrolet V Series, 1985 Chevrolet V Series, 1986 Chevrolet V Series, 1987 Chevrolet V Series, 1988 Chevrolet V Series, 1989 Chevrolet V Series, 1990 Chevrolet V Series, 1991 Chevrolet V Series, 1992 Chevrolet V Series, 1993 Chevrolet V Series, 1994 Chevrolet V Series, 1995 Chevrolet V Series, 1996 Chevrolet V Series, 1997 Chevrolet V Series, 1998 Chevrolet V Series, 1999 Chevrolet V Series, 2000 Chevrolet V Series, 1982 GMC C Series, 1983 GMC C Series, 1984 GMC C Series, 1985 GMC C Series, 1986 GMC C Series, 1987 GMC C Series, 1988 GMC C Series, 1989 GMC C Series, 1990 GMC C Series, 1991 GMC C Series, 1992 GMC C Series, 1993 GMC C Series, 1994 GMC C Series, 1995 GMC C Series, 1996 GMC C Series, 1997 GMC C Series, 1998 GMC C Series, 1999 GMC C Series, 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, 1996 GMC G Series, 1997 GMC G Series, 1998 GMC G Series, 1999 GMC G Series, 1982 GMC K Series, 1983 GMC K Series, 1984 GMC K Series, 1985 GMC K Series, 1986 GMC K Series, 1987 GMC K Series, 1988 GMC K Series, 1989 GMC K Series, 1990 GMC K Series, 1991 GMC K Series, 1992 GMC K Series, 1993 GMC K Series, 1994 GMC K Series, 1995 GMC K Series, 1996 GMC K Series, 1997 GMC K Series, 1998 GMC K Series, 1999 GMC K 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, 1996 GMC P Series, 1997 GMC P Series, 1998 GMC P Series, 1999 GMC P Series, 1982 GMC R Series, 1983 GMC R Series, 1984 GMC R Series, 1985 GMC R Series, 1986 GMC R Series, 1987 GMC R Series, 1988 GMC R Series, 1989 GMC R Series, 1990 GMC R Series, 1991 GMC R Series, 1992 GMC R Series, 1993 GMC R Series, 1994 GMC R Series, 1995 GMC R Series, 1996 GMC R Series, 1997 GMC R Series, 1998 GMC R Series, 1999 GMC R Series, 1982 GMC V Series, 1983 GMC V Series, 1984 GMC V Series, 1985 GMC V Series, 1986 GMC V Series, 1987 GMC V Series, 1988 GMC V Series, 1989 GMC V Series, 1990 GMC V Series, 1991 GMC V Series, 1992 GMC V Series, 1993 GMC V Series, 1994 GMC V Series, 1995 GMC V Series, 1996 GMC V Series, 1997 GMC V Series, 1998 GMC V Series, 1999 GMC V Series, 2000 GMC V Series.

2 1991 GMC G Series structure body TSB (Bulletin 661509A)

Bulletin Date: Apr. 1, 1997
Component: Structure body.
Bulletin Summary: Fiber glass rear fender paint star shaped cracks (install protective liner).
Vehicles covered in this TSB:
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), 1996 Chevrolet C Series (light), 1997 Chevrolet C Series (light), 1988 Chevrolet C Series(light), 1988 Chevrolet K Series, 1989 Chevrolet K Series, 1990 Chevrolet K Series, 1991 Chevrolet K Series, 1992 Chevrolet K Series, 1993 Chevrolet K Series, 1994 Chevrolet K Series, 1995 Chevrolet K Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1988 GMC C Series, 1989 GMC C Series, 1990 GMC C Series, 1991 GMC C Series, 1992 GMC C Series, 1993 GMC C Series, 1994 GMC C Series, 1995 GMC C Series, 1996 GMC C Series, 1997 GMC C 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, 1996 GMC G Series, 1997 GMC G Series.

3 1991 GMC G Series 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.

4 1991 GMC G Series 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.

5 1991 GMC G Series automatic transmission TSB (Bulletin 577103)

Bulletin Date: Feb. 1, 1995
Component: Automatic transmission.
Bulletin Summary: transmission leak at rear extention housing and prop shaft.
Vehicles covered in this TSB:
1991 Chevrolet G Series, 1992 Chevrolet G Series, 1993 Chevrolet G Series, 1994 Chevrolet G Series, 1995 Chevrolet G Series, 1991 GMC G Series, 1992 GMC G Series, 1993 GMC G Series, 1994 GMC G Series, 1995 GMC G Series.

6 1991 GMC G Series doors latch TSB (Bulletin 461506)

Bulletin Date: Jan. 1, 1995
Component: Doors latch.
Bulletin Summary: rear and side cargo door latch rattles.
Vehicles covered in this TSB:
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, 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.

7 1991 GMC G Series 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.

8 1991 GMC G Series automatic transmission TSB (Bulletin 467108)

Bulletin Date: Dec. 1, 1994
Component: Automatic transmission.
Bulletin Summary: transmission extention seal leaks.
Vehicles covered in this TSB:
1988 Chevrolet Astro, 1989 Chevrolet Astro, 1990 Chevrolet Astro, 1991 Chevrolet Astro, 1992 Chevrolet Astro, 1993 Chevrolet Astro, 1994 Chevrolet Astro, 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, 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, 1988 GMC Safari, 1989 GMC Safari, 1990 GMC Safari, 1991 GMC Safari, 1992 GMC Safari, 1993 GMC Safari, 1994 GMC Safari.

9 1991 GMC G Series 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.

10 1991 GMC G Series cooling system TSB (Bulletin 461102)

Bulletin Date: Nov. 1, 1994
Component: Cooling system.
Bulletin Summary: insufficient heater performance.
Vehicles covered in this TSB:
1990 Chevrolet G Series, 1991 Chevrolet G Series, 1992 Chevrolet G Series, 1993 Chevrolet G Series, 1994 Chevrolet G Series, 1990 GMC G Series, 1991 GMC G Series, 1992 GMC G Series, 1993 GMC G Series, 1994 GMC G Series.


Also see GMC vehicle common problems.




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