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Technical Service Bulletins of the 1998 Chevrolet M

There have been 24 technical service bulletins issued for the 1998 Chevrolet M.

1 1998 Chevrolet M Series suspension TSB (Bulletin 000309001A)

Bulletin Date:	Oct. 1, 2004
Component:	Suspension.
Bulletin Summary:	A boom noise inside the vehicle while driving at speeds ranging between 97 - 105 km/h (60 - 65 mph). This bulletin is revised and replaced bulletin 00-03-09-001 dated 01/01/2000. Updated
Vehicles covered in this TSB:	2001 Chevrolet Astro, 2002 Chevrolet Astro, 2003 Chevrolet Astro, 2004 Chevrolet Astro, 1995 Chevrolet L Series, 1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 2000 Chevrolet L Series, 1994 Chevrolet M, 1995 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1999 Chevrolet M, 2000 Chevrolet M, 1995 Ford L Series, 1996 Ford L Series, 1999 Ford L Series, 1997 GMC L Series, 1998 GMC L Series, 2000 GMC L Series, 1995 GMC M Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1999 GMC M Series, 2000 GMC M Series, 2001 GMC Safari, 2002 GMC Safari, 2003 GMC Safari, 2004 GMC Safari.

2 1998 Chevrolet M Series gasoline engine TSB (Bulletin 99066D)

Bulletin Date:	Dec. 1, 2001
Component:	Gasoline engine.
Bulletin Summary:	Some owners may experience a service engine soon light, misfire, rough idle orhard start due to a deposit build-up on the sequential central port fuel inujector (scpi) poppet valve(s).
Vehicles covered in this TSB:	1999 Cadillac C Series, 2000 Cadillac C Series, 2000 Cadillac C/k Series, 1999 Cadillac K Series, 2000 Cadillac K Series, 1996 Chevrolet C Series, 1997 Chevrolet C Series, 1998 Chevrolet C Series, 1999 Chevrolet C Series, 2000 Chevrolet C Series, 1996 Chevrolet G Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1999 Chevrolet G Series, 2000 Chevrolet G Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1999 Chevrolet K Series, 2000 Chevrolet K Series, 1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 2000 Chevrolet L Series, 1996 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1999 Chevrolet M, 2000 Chevrolet M, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1999 Chevrolet P, 1996 Chevrolet S Series, 1997 Chevrolet S Series, 1998 Chevrolet S Series, 1999 Chevrolet S Series, 2000 Chevrolet S Series, 1996 Chevrolet T-series, 1997 Chevrolet T-series, 1998 Chevrolet T-series, 1999 Chevrolet T-series, 2000 Chevrolet T-series, 1996 Chevrolet W4, 1997 Chevrolet W4, 1998 Chevrolet W4, 1999 Chevrolet W4, 2000 Chevrolet W4, 1996 Ford L Series, 1999 Ford L Series, 1996 GMC C Series, 1997 GMC C Series, 1998 GMC C Series, 1999 GMC C Series, 2000 GMC C Series, 1996 GMC G Series, 1997 GMC G Series, 1998 GMC G Series, 1999 GMC G Series, 2000 GMC G Series, 1996 GMC K Series, 1997 GMC K Series, 1998 GMC K Series, 1999 GMC K Series, 2000 GMC K Series, 1997 GMC L Series, 1998 GMC L Series, 2000 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1999 GMC M Series, 2000 GMC M Series, 1996 GMC P Series, 1997 GMC P Series, 1998 GMC P Series, 1999 GMC P Series, 1996 GMC S Series, 1997 GMC S Series, 1998 GMC S Series, 1999 GMC S Series, 2000 GMC S Series, 1996 GMC T-series, 1997 GMC T-series, 1998 GMC T-series, 1999 GMC T-series, 2000 GMC T-series, 1996 GMC W4, 1997 GMC W4, 1998 GMC W4, 1999 GMC W4, 2000 GMC W4, 2000 Isuzu NPR, 1996 Oldsmobile T Series, 1997 Oldsmobile T Series, 1998 Oldsmobile T Series, 2000 Oldsmobile T Series.

3 1998 Chevrolet M Series gasoline engine TSB (Bulletin 000601023A)

Bulletin Date:	Dec. 1, 2001
Component:	Gasoline engine.
Bulletin Summary:	Information used when diagnosing noise conditions such as engine rattle noise, spark knock at 2000 - 2500 rpm range, under a moderate to heavy load with a warmed up engine.
Vehicles covered in this TSB:	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, 2000 Chevrolet C Series, 2001 Chevrolet C Series, 2002 Chevrolet C 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, 2000 Chevrolet G Series, 2001 Chevrolet G Series, 2002 Chevrolet G 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, 2000 Chevrolet K Series, 2001 Chevrolet K Series, 2002 Chevrolet K Series, 1992 Chevrolet L Series, 1993 Chevrolet L Series, 1994 Chevrolet L Series, 1995 Chevrolet L Series, 1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 2000 Chevrolet L Series, 2001 Chevrolet L Series, 2002 Chevrolet L Series, 1992 Chevrolet M, 1993 Chevrolet M, 1994 Chevrolet M, 1995 Chevrolet M, 1996 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1999 Chevrolet M, 2000 Chevrolet M, 2001 Chevrolet M, 2002 Chevrolet M, 1992 Chevrolet P, 1993 Chevrolet P, 1994 Chevrolet P, 1995 Chevrolet P, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1999 Chevrolet P, 2000 Chevrolet P, 2001 Chevrolet P, 2002 Chevrolet P, 1992 Chevrolet S Series, 1993 Chevrolet S Series, 1994 Chevrolet S Series, 1995 Chevrolet S Series, 1996 Chevrolet S Series, 1997 Chevrolet S Series, 1998 Chevrolet S Series, 1999 Chevrolet S Series, 2000 Chevrolet S Series, 2001 Chevrolet S Series, 2002 Chevrolet S Series, 1992 Chevrolet T-series, 1993 Chevrolet T-series, 1994 Chevrolet T-series, 1995 Chevrolet T-series, 1996 Chevrolet T-series, 1997 Chevrolet T-series, 1998 Chevrolet T-series, 1999 Chevrolet T-series, 2000 Chevrolet T-series, 2001 Chevrolet T-series, 2002 Chevrolet T-series, 1993 Ford L Series, 1994 Ford L Series, 1995 Ford L Series, 1996 Ford L Series, 1999 Ford L 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, 2000 GMC C Series, 2001 GMC C Series, 2002 GMC C 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, 2000 GMC G Series, 2001 GMC G Series, 2002 GMC G 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, 2000 GMC K Series, 2001 GMC K Series, 2002 GMC K Series, 1992 GMC L Series, 1997 GMC L Series, 1998 GMC L Series, 2000 GMC L Series, 2001 GMC L Series, 2002 GMC L Series, 1992 GMC M Series, 1993 GMC M Series, 1994 GMC M Series, 1995 GMC M Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1999 GMC M Series, 2000 GMC M Series, 2001 GMC M Series, 2002 GMC M 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, 2000 GMC P Series, 2001 GMC P Series, 2002 GMC P Series, 1992 GMC S Series, 1993 GMC S Series, 1994 GMC S Series, 1995 GMC S Series, 1996 GMC S Series, 1997 GMC S Series, 1998 GMC S Series, 1999 GMC S Series, 2000 GMC S Series, 2001 GMC S Series, 2002 GMC S Series, 1992 GMC T-series, 1993 GMC T-series, 1994 GMC T-series, 1995 GMC T-series, 1996 GMC T-series, 1997 GMC T-series, 1998 GMC T-series, 1999 GMC T-series, 2000 GMC T-series, 2001 GMC T-series, 2002 GMC T-series, 1992 Oldsmobile Bravada, 1993 Oldsmobile Bravada, 1994 Oldsmobile Bravada, 1995 Oldsmobile Bravada, 1996 Oldsmobile Bravada, 1997 Oldsmobile Bravada, 1998 Oldsmobile Bravada, 1999 Oldsmobile Bravada, 2000 Oldsmobile Bravada, 2001 Oldsmobile Bravada.

4 1998 Chevrolet M Series gasoline engine TSB (Bulletin 000604003A)

Bulletin Date:	Dec. 1, 2001
Component:	Gasoline engine.
Bulletin Summary:	Some customers may comment on rough idle after start up, especially after setting overnight.
Vehicles covered in this TSB:	1999 Cadillac Escalade, 2000 Cadillac Escalade, 1996 Chevrolet C Series, 1997 Chevrolet C Series, 1998 Chevrolet C Series, 1999 Chevrolet C Series, 2000 Chevrolet C Series, 2001 Chevrolet C Series, 2002 Chevrolet C Series, 1996 Chevrolet G Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1999 Chevrolet G Series, 2000 Chevrolet G Series, 2001 Chevrolet G Series, 2002 Chevrolet G Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1999 Chevrolet K Series, 2000 Chevrolet K Series, 2001 Chevrolet K Series, 2002 Chevrolet K Series, 1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 2000 Chevrolet L Series, 2001 Chevrolet L Series, 2002 Chevrolet L Series, 1996 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1999 Chevrolet M, 2000 Chevrolet M, 2001 Chevrolet M, 2002 Chevrolet M, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1999 Chevrolet P, 2000 Chevrolet P, 2001 Chevrolet P, 2002 Chevrolet P, 1995 Chevrolet S Series, 1996 Chevrolet S Series, 1997 Chevrolet S Series, 1998 Chevrolet S Series, 1999 Chevrolet S Series, 2000 Chevrolet S Series, 2001 Chevrolet S Series, 2002 Chevrolet S Series, 1995 Chevrolet T-series, 1996 Chevrolet T-series, 1997 Chevrolet T-series, 1998 Chevrolet T-series, 1999 Chevrolet T-series, 2000 Chevrolet T-series, 2001 Chevrolet T-series, 2002 Chevrolet T-series, 1996 Ford L Series, 1999 Ford L Series, 1996 GMC C Series, 1997 GMC C Series, 1998 GMC C Series, 1999 GMC C Series, 2000 GMC C Series, 2001 GMC C Series, 2002 GMC C Series, 1996 GMC G Series, 1997 GMC G Series, 1998 GMC G Series, 1999 GMC G Series, 2000 GMC G Series, 2001 GMC G Series, 2002 GMC G Series, 1996 GMC K Series, 1997 GMC K Series, 1998 GMC K Series, 1999 GMC K Series, 2000 GMC K Series, 2001 GMC K Series, 2002 GMC K Series, 1997 GMC L Series, 1998 GMC L Series, 2000 GMC L Series, 2001 GMC L Series, 2002 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1999 GMC M Series, 2000 GMC M Series, 2001 GMC M Series, 2002 GMC M Series, 1996 GMC P Series, 1997 GMC P Series, 1998 GMC P Series, 1999 GMC P Series, 2000 GMC P Series, 2001 GMC P Series, 2002 GMC P Series, 1995 GMC S Series, 1996 GMC S Series, 1997 GMC S Series, 1998 GMC S Series, 1999 GMC S Series, 2000 GMC S Series, 2001 GMC S Series, 2002 GMC S Series, 1995 GMC T-series, 1996 GMC T-series, 1997 GMC T-series, 1998 GMC T-series, 1999 GMC T-series, 2000 GMC T-series, 2001 GMC T-series, 2002 GMC T-series, 1996 Oldsmobile Bravada, 1997 Oldsmobile Bravada, 1998 Oldsmobile Bravada, 1999 Oldsmobile Bravada, 2000 Oldsmobile Bravada, 2001 Oldsmobile Bravada.

5 1998 Chevrolet M Series unknown or other TSB (Bulletin 00148)

Bulletin Date:	Nov. 17, 2000
Component:	Unknown or other.
Bulletin Summary:	Service engine soon light, misfire, rough idle, or hard start due to a deposit build-up on the sequential central port fuel injector (scpi) poppet valve(s). The deposit build-up may cause injector poppets to stick closed.
Vehicles covered in this TSB:	1996 Chevrolet C Series, 1997 Chevrolet C Series, 1998 Chevrolet C Series, 1999 Chevrolet C Series, 1996 Chevrolet G Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1999 Chevrolet G Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1999 Chevrolet K Series, 1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 1996 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1999 Chevrolet M, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1999 Chevrolet P, 1996 Chevrolet S Series, 1997 Chevrolet S Series, 1998 Chevrolet S Series, 1999 Chevrolet S Series, 1996 Chevrolet T-series, 1997 Chevrolet T-series, 1998 Chevrolet T-series, 1999 Chevrolet T-series, 1996 Chevrolet W4, 1997 Chevrolet W4, 1998 Chevrolet W4, 1999 Chevrolet W4, 1996 Ford L Series, 1999 Ford L Series, 1996 GMC C Series, 1997 GMC C Series, 1998 GMC C Series, 1999 GMC C Series, 1996 GMC G Series, 1997 GMC G Series, 1998 GMC G Series, 1999 GMC G Series, 1996 GMC K Series, 1997 GMC K Series, 1998 GMC K Series, 1999 GMC K Series, 1997 GMC L Series, 1998 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1999 GMC M Series, 1996 GMC P Series, 1997 GMC P Series, 1998 GMC P Series, 1999 GMC P Series, 1996 GMC S Series, 1997 GMC S Series, 1998 GMC S Series, 1999 GMC S Series, 1996 GMC T-series, 1997 GMC T-series, 1998 GMC T-series, 1999 GMC T-series, 1996 GMC W4, 1997 GMC W4, 1998 GMC W4, 1999 GMC W4.

6 1998 Chevrolet M Series gasoline engine TSB (Bulletin 99066B)

Bulletin Date:	May. 1, 2000
Component:	Gasoline engine.
Bulletin Summary:	Some owners may experience a service engine soon light, misfire, rough idle or hard start. *
Vehicles covered in this TSB:	1999 Cadillac K Series, 1996 Chevrolet C Series, 1997 Chevrolet C Series, 1998 Chevrolet C Series, 1999 Chevrolet C Series, 1996 Chevrolet G Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1999 Chevrolet G Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1999 Chevrolet K Series, 1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 1996 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1999 Chevrolet M, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1999 Chevrolet P, 1996 Chevrolet S Series, 1997 Chevrolet S Series, 1998 Chevrolet S Series, 1999 Chevrolet S Series, 1996 Chevrolet T-series, 1997 Chevrolet T-series, 1998 Chevrolet T-series, 1999 Chevrolet T-series, 1996 Chevrolet W4, 1997 Chevrolet W4, 1998 Chevrolet W4, 1999 Chevrolet W4, 1996 Ford L Series, 1999 Ford L Series, 1996 GMC C Series, 1997 GMC C Series, 1998 GMC C Series, 1999 GMC C Series, 1996 GMC G Series, 1997 GMC G Series, 1998 GMC G Series, 1999 GMC G Series, 1996 GMC K Series, 1997 GMC K Series, 1998 GMC K Series, 1999 GMC K Series, 1997 GMC L Series, 1998 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1999 GMC M Series, 1996 GMC P Series, 1997 GMC P Series, 1998 GMC P Series, 1999 GMC P Series, 1996 GMC S Series, 1997 GMC S Series, 1998 GMC S Series, 1999 GMC S Series, 1996 GMC T-series, 1997 GMC T-series, 1998 GMC T-series, 1999 GMC T-series, 1996 GMC W4, 1997 GMC W4, 1998 GMC W4, 1999 GMC W4, 1996 Oldsmobile T Series, 1997 Oldsmobile T Series, 1998 Oldsmobile T Series.

7 1998 Chevrolet M Series gasoline engine TSB (Bulletin 000604014)

Bulletin Date:	Apr. 1, 2000
Component:	Gasoline engine.
Bulletin Summary:	Some customers may comment on hard, no, or slow start, backfire or kickback during crank / start, grinding or unusual noises during crank, diagnostic trouble code p0338.
Vehicles covered in this TSB:	1999 Cadillac Escalade, 2000 Cadillac Escalade, 1996 Chevrolet C Series, 1997 Chevrolet C Series, 1998 Chevrolet C Series, 1999 Chevrolet C Series, 2000 Chevrolet C Series, 1996 Chevrolet G Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1999 Chevrolet G Series, 2000 Chevrolet G Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1999 Chevrolet K Series, 2000 Chevrolet K Series, 1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 2000 Chevrolet L Series, 1996 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1999 Chevrolet M, 2000 Chevrolet M, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1999 Chevrolet P, 2000 Chevrolet P, 1995 Chevrolet S Series, 1996 Chevrolet S Series, 1997 Chevrolet S Series, 1998 Chevrolet S Series, 1999 Chevrolet S Series, 2000 Chevrolet S Series, 1995 Chevrolet T-series, 1996 Chevrolet T-series, 1997 Chevrolet T-series, 1998 Chevrolet T-series, 1999 Chevrolet T-series, 2000 Chevrolet T-series, 1996 Ford L Series, 1999 Ford L Series, 1996 GMC C Series, 1997 GMC C Series, 1998 GMC C Series, 1999 GMC C Series, 2000 GMC C Series, 1996 GMC G Series, 1997 GMC G Series, 1998 GMC G Series, 1999 GMC G Series, 2000 GMC G Series, 1996 GMC K Series, 1997 GMC K Series, 1998 GMC K Series, 1999 GMC K Series, 2000 GMC K Series, 1997 GMC L Series, 1998 GMC L Series, 2000 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1999 GMC M Series, 2000 GMC M Series, 1996 GMC P Series, 1997 GMC P Series, 1998 GMC P Series, 1999 GMC P Series, 2000 GMC P Series, 1995 GMC S Series, 1996 GMC S Series, 1997 GMC S Series, 1998 GMC S Series, 1999 GMC S Series, 2000 GMC S Series, 1995 GMC T-series, 1996 GMC T-series, 1997 GMC T-series, 1998 GMC T-series, 1999 GMC T-series, 2000 GMC T-series, 1996 Oldsmobile Bravada, 1997 Oldsmobile Bravada, 1998 Oldsmobile Bravada, 1999 Oldsmobile Bravada, 2000 Oldsmobile Bravada.

8 1998 Chevrolet M Series cruise control TSB (Bulletin 99066A)

Bulletin Date:	Feb. 1, 2000
Component:	Cruise control.
Bulletin Summary:	Some vehicles that are registered in California, equipped with a 4. 3l, 5. 0l or 5. 7l engine and California emissions, may experience a service engine soon light, misfire, rough idle or hard start.
Vehicles covered in this TSB:	1996 Chevrolet C Series, 1997 Chevrolet C Series, 1998 Chevrolet C Series, 1996 Chevrolet G Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1994 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1996 Chevrolet S Series, 1997 Chevrolet S Series, 1998 Chevrolet S Series, 1996 Chevrolet T-series, 1997 Chevrolet T-series, 1998 Chevrolet T-series, 1996 Chevrolet W4, 1997 Chevrolet W4, 1998 Chevrolet W4, 1996 Ford L Series, 1996 GMC C Series, 1997 GMC C Series, 1998 GMC C Series, 1996 GMC G Series, 1997 GMC G Series, 1998 GMC G Series, 1996 GMC K Series, 1997 GMC K Series, 1998 GMC K Series, 1997 GMC L Series, 1998 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1996 GMC P Series, 1997 GMC P Series, 1998 GMC P Series, 1996 GMC S Series, 1997 GMC S Series, 1998 GMC S Series, 1996 GMC T-series, 1997 GMC T-series, 1998 GMC T-series, 1996 GMC W4, 1997 GMC W4, 1998 GMC W4, 1996 Oldsmobile T Series, 1997 Oldsmobile T Series, 1998 Oldsmobile T Series.

9 1998 Chevrolet M Series gasoline fuel injection system injectors TSB (Bulletin 99066A)

Bulletin Date:	Feb. 1, 2000
Component:	Gasoline fuel injection system injectors.
Bulletin Summary:	Some vehicles may experience a service engine soon light, misfire, rough idle or hard start due to a deposit build up on the sequential central port fuel injector (scpi) poppet valve(s).
Vehicles covered in this TSB:	1996 Chevrolet C Series, 1997 Chevrolet C Series, 1998 Chevrolet C Series, 1996 Chevrolet G Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1996 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1996 Chevrolet S Series, 1997 Chevrolet S Series, 1998 Chevrolet S Series, 1996 Chevrolet T-series, 1997 Chevrolet T-series, 1998 Chevrolet T-series, 1996 Chevrolet W4, 1997 Chevrolet W4, 1998 Chevrolet W4, 1996 Ford L Series, 1996 GMC C Series, 1997 GMC C Series, 1998 GMC C Series, 1996 GMC G Series, 1997 GMC G Series, 1998 GMC G Series, 1996 GMC K Series, 1997 GMC K Series, 1998 GMC K Series, 1997 GMC L Series, 1998 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1996 GMC P Series, 1997 GMC P Series, 1998 GMC P Series, 1996 GMC S Series, 1997 GMC S Series, 1998 GMC S Series, 1996 GMC T-series, 1997 GMC T-series, 1998 GMC T-series, 1996 GMC W4, 1997 GMC W4, 1998 GMC W4, 1996 Oldsmobile T Series, 1997 Oldsmobile T Series, 1998 Oldsmobile T Series.

10 1998 Chevrolet M Series cruise control TSB (Bulletin 000604003)

Bulletin Date:	Jan. 1, 2000
Component:	Cruise control.
Bulletin Summary:	Some customers may comment on rough idle after start up, and / or a service engine soon (ses) light illuminated.
Vehicles covered in this TSB:	1999 Cadillac Escalade, 2000 Cadillac Escalade, 1996 Chevrolet C Series, 1997 Chevrolet C Series, 1998 Chevrolet C Series, 1999 Chevrolet C Series, 2000 Chevrolet C Series, 1996 Chevrolet G Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1999 Chevrolet G Series, 2000 Chevrolet G Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1999 Chevrolet K Series, 2000 Chevrolet K Series, 1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 2000 Chevrolet L Series, 1994 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1999 Chevrolet M, 2000 Chevrolet M, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1999 Chevrolet P, 2000 Chevrolet P, 1996 Chevrolet S Series, 1997 Chevrolet S Series, 1998 Chevrolet S Series, 1999 Chevrolet S Series, 1996 Chevrolet T-series, 1997 Chevrolet T-series, 1998 Chevrolet T-series, 1999 Chevrolet T-series, 2000 Chevrolet T-series, 1996 Ford L Series, 1999 Ford L Series, 1996 GMC C Series, 1997 GMC C Series, 1998 GMC C Series, 1999 GMC C Series, 2000 GMC C Series, 1996 GMC G Series, 1997 GMC G Series, 1998 GMC G Series, 1999 GMC G Series, 2000 GMC G Series, 1996 GMC K Series, 1997 GMC K Series, 1998 GMC K Series, 1999 GMC K Series, 2000 GMC K Series, 1997 GMC L Series, 1998 GMC L Series, 2000 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1999 GMC M Series, 2000 GMC M Series, 1996 GMC P Series, 1997 GMC P Series, 1998 GMC P Series, 1999 GMC P Series, 2000 GMC P Series, 1996 GMC S Series, 1997 GMC S Series, 1998 GMC S Series, 1999 GMC S Series, 2000 GMC S Series, 1996 GMC T-series, 1997 GMC T-series, 1998 GMC T-series, 1999 GMC T-series, 2000 GMC T-series, 1996 Oldsmobile Bravada, 1997 Oldsmobile Bravada, 1998 Oldsmobile Bravada, 1999 Oldsmobile Bravada, 2000 Oldsmobile Bravada.

11 1998 Chevrolet M Series gasoline fuel injection system injectors TSB (Bulletin 99066)

Bulletin Date:	Nov. 1, 1999
Component:	Gasoline fuel injection system injectors.
Bulletin Summary:	Special policy adjustment covering the sequential central port fuel injector (scpi) failure condition.
Vehicles covered in this TSB:	1996 Chevrolet C Series, 1997 Chevrolet C Series, 1998 Chevrolet C Series, 1996 Chevrolet G Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1996 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1996 Chevrolet S Series, 1997 Chevrolet S Series, 1998 Chevrolet S Series, 2000 Chevrolet Sierra, 1996 Chevrolet T-series, 1997 Chevrolet T-series, 1998 Chevrolet T-series, 1996 Ford L Series, 1996 GMC C Series, 1997 GMC C Series, 1998 GMC C Series, 1996 GMC G Series, 1997 GMC G Series, 1998 GMC G Series, 1996 GMC K Series, 1997 GMC K Series, 1998 GMC K Series, 1997 GMC L Series, 1998 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1996 GMC P Series, 1997 GMC P Series, 1998 GMC P Series, 1996 GMC S Series, 1997 GMC S Series, 1998 GMC S Series, 2000 GMC Silverado, 1996 GMC T-series, 1997 GMC T-series, 1998 GMC T-series, 1996 Oldsmobile T Series, 1997 Oldsmobile T Series, 1998 Oldsmobile T Series.

12 1998 Chevrolet M Series ignition module TSB (Bulletin 990604037)

Bulletin Date:	Sep. 1, 1999
Component:	Ignition module.
Bulletin Summary:	Subject on on-board diagnostic (obd) system improvements.
Vehicles covered in this TSB:	1998 Buick Century, 1998 Buick Lesabre, 1998 Buick Park Avenue, 1998 Buick Regal, 1998 Buick Skylark, 1998 Chevrolet C Series, 1998 Chevrolet Camaro, 1998 Chevrolet G Series, 1998 Chevrolet K Series, 1998 Chevrolet L Series, 1998 Chevrolet Lumina, 1998 Chevrolet M, 1998 Chevrolet Malibu, 1998 Chevrolet Monte Carlo, 1998 Chevrolet P, 1998 Chevrolet S Series, 1998 Chevrolet T-series, 1998 Chevrolet Venture, 1998 GMC C Series, 1998 GMC G Series, 1998 GMC K Series, 1998 GMC L Series, 1998 GMC M Series, 1998 GMC P Series, 1998 GMC S Series, 1998 GMC T-series, 1998 Oldsmobile 88, 1998 Oldsmobile Achieva, 1998 Oldsmobile Bravada, 1998 Oldsmobile Cutlass, 1998 Oldsmobile Intrigue, 1998 Oldsmobile Silhouette, 1998 Pontiac Bonneville, 1998 Pontiac Firebird, 1998 Pontiac Grand Am, 1998 Pontiac Grand Prix, 1998 Pontiac Trans Sport.

13 1998 Chevrolet M Series unknown or other TSB (Bulletin 990730013)

Bulletin Date:	Aug. 1, 1999
Component:	Unknown or other.
Bulletin Summary:	Some customers may comment about the service engine soon light illuminating.
Vehicles covered in this TSB:	1999 Cadillac Escalade, 1998 Chevrolet C Series, 1999 Chevrolet C Series, 1998 Chevrolet Camaro, 1999 Chevrolet Camaro, 1998 Chevrolet Corvette, 1999 Chevrolet Corvette, 1998 Chevrolet G Series, 1999 Chevrolet G Series, 1998 Chevrolet K Series, 1999 Chevrolet K Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 1998 Chevrolet M, 1999 Chevrolet M, 1998 Chevrolet S Series, 1999 Chevrolet S Series, 1998 Chevrolet T-series, 1999 Chevrolet T-series, 1999 Ford L Series, 1998 GMC C Series, 1999 GMC C Series, 1998 GMC G Series, 1999 GMC G Series, 1998 GMC K Series, 1999 GMC K Series, 1998 GMC L Series, 1998 GMC M Series, 1999 GMC M Series, 1998 GMC S Series, 1999 GMC S Series, 1998 GMC T-series, 1999 GMC T-series, 1998 Oldsmobile Bravada, 1999 Oldsmobile Bravada, 1998 Pontiac Firebird, 1999 Pontiac Firebird.

14 1998 Chevrolet M Series air conditioner TSB (Bulletin 990138002)

Bulletin Date:	Aug. 1, 1999
Component:	Air conditioner.
Bulletin Summary:	Some customers may comment on no a/c.
Vehicles covered in this TSB:	1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 1996 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1999 Chevrolet M, 1996 Ford L Series, 1999 Ford L Series, 1997 GMC L Series, 1998 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1999 GMC M Series.

15 1998 Chevrolet M Series steering TSB (Bulletin 98863206)

Bulletin Date:	Sep. 1, 1998
Component:	Steering.
Bulletin Summary:	Comments about reduced steering effort while driving.
Vehicles covered in this TSB:	1997 Chevrolet C Series, 1998 Chevrolet C Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1997 Chevrolet M, 1998 Chevrolet M, 1997 GMC C Series, 1998 GMC C Series, 1997 GMC G Series, 1998 GMC G Series, 1997 GMC K Series, 1998 GMC K Series, 1997 GMC L Series, 1998 GMC L Series, 1997 GMC M Series, 1998 GMC M Series.

16 1998 Chevrolet M Series engine TSB (Bulletin 866503A)

Bulletin Date:	Sep. 1, 1998
Component:	Engine.
Bulletin Summary:	Subject regarding obd ii diagnostic trouble code (dtc) p1404 (reflash vcm).
Vehicles covered in this TSB:	1998 Chevrolet C Series, 1999 Chevrolet C Series, 1998 Chevrolet G Series, 1999 Chevrolet G Series, 1998 Chevrolet K Series, 1999 Chevrolet K Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 1998 Chevrolet M, 1999 Chevrolet M, 1998 Chevrolet P, 1999 Chevrolet P, 1998 Chevrolet S Series, 1998 Chevrolet T-series, 1999 Chevrolet T-series, 1999 Ford L Series, 1998 GMC C Series, 1999 GMC C Series, 1998 GMC G Series, 1999 GMC G Series, 1998 GMC K Series, 1999 GMC K Series, 1998 GMC L Series, 1998 GMC M Series, 1999 GMC M Series, 1998 GMC P Series, 1999 GMC P Series, 1998 GMC S Series, 1999 GMC S Series, 1998 GMC T-series, 1999 GMC T-series, 1998 Oldsmobile Bravada.

17 1998 Chevrolet M Series automatic transmission TSB (Bulletin 837110A)

Bulletin Date:	Aug. 1, 1998
Component:	Automatic transmission.
Bulletin Summary:	Park/neutral position switch connector cannot be removed. Yd
Vehicles covered in this TSB:	1996 Chevrolet C Series, 1997 Chevrolet C Series, 1998 Chevrolet C Series, 1999 Chevrolet C Series, 1996 Chevrolet G Series, 1997 Chevrolet G Series, 1998 Chevrolet G Series, 1999 Chevrolet G Series, 1996 Chevrolet K Series, 1997 Chevrolet K Series, 1998 Chevrolet K Series, 1999 Chevrolet K Series, 1994 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1996 Chevrolet P, 1997 Chevrolet P, 1998 Chevrolet P, 1995 Chevrolet S Series, 1996 Chevrolet S Series, 1997 Chevrolet S Series, 1998 Chevrolet S Series, 1995 Chevrolet T-series, 1996 Chevrolet T-series, 1997 Chevrolet T-series, 1998 Chevrolet T-series, 1996 Ford L Series, 1996 GMC C Series, 1997 GMC C Series, 1998 GMC C Series, 1999 GMC C Series, 1996 GMC G Series, 1997 GMC G Series, 1998 GMC G Series, 1999 GMC G Series, 1996 GMC K Series, 1997 GMC K Series, 1998 GMC K Series, 1999 GMC K Series, 1997 GMC L Series, 1998 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series, 1996 GMC P, 1997 GMC P, 1998 GMC P, 1995 GMC S Series, 1996 GMC S Series, 1997 GMC S Series, 1998 GMC S Series, 1995 GMC T-series, 1996 GMC T-series, 1997 GMC T-series, 1998 GMC T-series, 1996 Oldsmobile Bravada, 1997 Oldsmobile Bravada, 1998 Oldsmobile Bravada.

18 1998 Chevrolet M Series cooling exhaust system TSB (Bulletin 866503)

Bulletin Date:	Jul. 1, 1998
Component:	Cooling exhaust system.
Bulletin Summary:	Some vehicles may set a false obd ii with diagnostic trouble code p1404.
Vehicles covered in this TSB:	1998 Chevrolet C Series, 1999 Chevrolet C Series, 1998 Chevrolet G Series, 1999 Chevrolet G Series, 1998 Chevrolet K Series, 1999 Chevrolet K Series, 1998 Chevrolet L Series, 1999 Chevrolet L Series, 1998 Chevrolet M, 1999 Chevrolet M, 1998 Chevrolet P, 1999 Chevrolet P, 1998 Chevrolet S Series, 1999 Chevrolet S Series, 1998 Chevrolet T-series, 1999 Chevrolet T-series, 1999 Ford L Series, 1998 GMC C Series, 1999 GMC C Series, 1998 GMC G Series, 1999 GMC G Series, 1998 GMC K Series, 1999 GMC K Series, 1998 GMC L Series, 1998 GMC M Series, 1999 GMC M Series, 1998 GMC P Series, 1999 GMC P Series, 1998 GMC S Series, 1999 GMC S Series, 1998 GMC T-series, 1999 GMC T-series, 1998 Oldsmobile Bravada.

19 1998 Chevrolet M Series automatic transmission control module (tcm, pcm) TSB (Bulletin 877169)

Bulletin Date:	Jul. 1, 1998
Component:	Automatic transmission control module (tcm, pcm).
Bulletin Summary:	Information pertaining to new transmission calibrations.
Vehicles covered in this TSB:	1998 Chevrolet C Series, 1998 Chevrolet G Van, 1998 Chevrolet K Series, 1998 Chevrolet L Series, 1998 Chevrolet M, 1998 Chevrolet S Series, 1998 Chevrolet T-series, 1998 GMC C Series, 1998 GMC G Van, 1998 GMC K Series, 1998 GMC L Series, 1998 GMC M Series, 1998 GMC S Series, 1998 GMC T-series, 1998 Oldsmobile Bravada.

20 1998 Chevrolet M Series seat belts TSB (Bulletin 98030)

Bulletin Date:	Jul. 1, 1998
Component:	Seat belts.
Bulletin Summary:	Some customers may comment about contacting the safety belt guide cover upon exiting the vehicle.
Vehicles covered in this TSB:	1996 Chevrolet L Series, 1997 Chevrolet L Series, 1998 Chevrolet L Series, 1996 Chevrolet M, 1997 Chevrolet M, 1998 Chevrolet M, 1996 Ford L Series, 1997 GMC L Series, 1998 GMC L Series, 1996 GMC M Series, 1997 GMC M Series, 1998 GMC M Series.

Also see Chevrolet vehicle common problems.

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