Gmc Bison — Engine
High risk
Sep 20, 1983
Model years: 1983
On certain trucks, the turbocharger compressor housings are metallurgically low in strength. Under operating conditions involving excessive engine spped, the turbocharger could ove
Also affects: Gmc Astro, Gmc Brigadier, Gmc Bruin, Gmc General, Gmc Titan
Gmc Bison — Brakes
High risk
Sep 14, 1981
Model years: 1977, 1978, 1979, 1980
Certain trucks may not comply with CMVSS 121 which requires a split braking system operating separately and independently on two axles.
Also affects: Gmc Astro, Gmc Brigadier, Gmc Bruin, Gmc General, Gmc Titan
Gmc Bison — Engine
High risk
Jan 21, 1981
Model years: 1980, 1981
On certain trucks, if diesel fuel or lubrication oil causes the crankcase to become overfull fluid can be ingested through the crankcase depression regulator valve to the intake sy
Also affects: Gmc Astro, Gmc Brigadier, Gmc Bruin, Gmc General, Gmc Titan
Gmc Bison — Lights And Instruments
High risk
Aug 14, 1978
Model years: 1978, 1979
TRUCKS WERE BUILT WITH SPEEDOMETERS CALIBRATED IN MILES PER HOUR RATHER THAN KILOMETERS PER HOUR AND ODOMETERS CALIBRATED IN MILES RATHER THAN KILOMETERS AS REQUIRED BY FEDERAL SAF
Also affects: Gmc Astro, Gmc Brigadier, Gmc Bruin, Gmc General, Gmc Titan
Gmc Bison — Brakes
High risk
Aug 5, 1975
Model years: 1976
ON CERTAIN MEDIUM DUTY TRUCKS, IT IS POSSIBLE THAT SERRATIONS WERE NOT MACHINED DEEP ENOUGH INTO THE LOWER PEDAL ASSEMBLY TO EFFECTIVELY ENGAGE WITH SERRATIONS IN THE LOWER PEDAL.
Also affects: Gmc Astro, Gmc Brigadier, Gmc Bruin, Gmc General, Gmc Titan
Gmc Bison — Powertrain
High risk
Apr 22, 1975
Model years: 1975
VEHICLES EQUIPPED WITH 366-V8 OR 427-V8 AND ALLISON MT650 TRANSMISSION. TRANSMISSION GOVERNOR FAILURE WHICH COULD ALLOW TRANSMISSION COMPONENTS TO BREAK AND ENDANGER THE DRIVER, PA
Also affects: Gmc Astro, Gmc Brigadier, Gmc Bruin, Gmc General, Gmc Titan
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