Gmc B6P042 recalls by model year

Reported: 1984-10-16 (October 16, 1984) · Model years: 1982, 1983, 1984

VEHICLES HAVE A PRIMARY AND A RESERVE BRAKING SYSTEM. IF THE PRIMARY BRAKE SYSTEM BOOSTER FAILS, UNDER SOME CIRCUMSTANCES THE RESERVE SYSTEM MAY ALSO MALFUNCTION AND BRAKING ABILITY WILL BE IMPAIRED.

Remedy: DEALER WILL INSTALL A NEW RESERVE BRAKE CONTROL MODULE AT NO COST TO OWNER.

Reported: 1986-07-07 (July 7, 1986) · Model years: 1983, 1984, 1985, 1986

SEVERE BRAKE CHATTER MAY CAUSE THE BRAKE CHAMBER MOUNTING BRACKETS ON EITHER SIDE TO DEVELOP CRACKS IN THE WELD AREA WHERE THE S-CAM SHAFT TUBE ATTACHES TO THE CHAMBER SUPPORT SECTION. CONSEQUENCE OF DEFECT: BRACKETS CAN BREAK, RESULTING IN LOSS OF BRAKING ABILITY AT THE FRONT WHEEL, AND POSSIBLY RESTRICT STEERING, WHICH COULD LEAD TO A VEHICLE CRASH WITHOUT PRIOR WARNING.

Remedy: AS NECESSARY, REPLACE FRONT BRAKE CHAMBER MOUNTING BRACKETS AND INSTALL A FRONT BRAKE LIMITING VALVE.

Reported: 1987-08-03 (August 3, 1987) · Model years: 1983, 1984, 1985, 1986, 1987

SEVERE BRAKE CHATTER MAY CAUSE THE BRAKE CHAMBER MOUNTING BRACKETS ON EITHER SIDE TO DEVELOP CRACKS IN THE WELD AREA WHERE THE S CAM SHAFT TUBE ATTACHES TO THE CHAMBER SUPPORT SECTION.

Consequence: BRACKETS CAN BREAK, RESULTING IN LOSS OF BRAKING ABILITYAT THAT FRONT WHEEL, AND POSSIBLY RESTRICTED STEERING, WHICH COULD LEAD TO AVEHICLE CRASH WITHOUT PRIOR WARNING.

Remedy: AS NECESSARY, INSTALL NEW REINFORCED FRONT BRAKE CHAMBER MOUNTING BRACKETS AND INSTALL A FRONT BRAKE LIMITING VALVE ON VEHICLES WITHOUT ONE.

Reported: 1989-05-08 (May 8, 1989) · Model years: 1986, 1987, 1988, 1989

A CRACK MAY DEVELOP ADJACENT TO THE FUEL TANK SEAM WELD ATTACHING THE TANK END CAP.

Consequence: THIS COULD RESULT IN A LEAK OR DRIPPING FROM THE FUELTANK WITH POTENTIAL FIRE HAZZARD.

Remedy: INSTALL LIMITER CUSHIONS ON THE TANK SUPPORT BRACKETS OR REPLACE TANK, IF NECESSARY.

Reported: 1988-08-16 (August 16, 1988) · Model years: 1987, 1988

MELTING OF THE AIR BRAKE LINES CAN OCCUR WHERE THE AIR LINES ROUTE UNDER THE LEFT HAND FRAME RAIL NEAR THE EXHAUST PIPE.

Consequence: THIS COULD RESULT IN PARTIAL OR TOTAL LOSS OF SERVICEBRAKES WITHOUT WARNING, WHICH COULD LEAD TO A VEHICLE CRASH.

Remedy: REROUTE AIR LINE HARNESS AWAY FROM THE EXHAUST SYSTEM; REPLACE HARNESS IF HEAT DETERIORATION HAS OCCURED.

Reported: 1990-08-13 (August 13, 1990) · Model years: 1990

FUEL RETURN HOSES MAY BREAK AT EITHER CRIMPED COUPLING, CAUSING A LEAKAGE OF FUEL.

Consequence: IN THE EVENT OF A FUEL RETURN LINE SEPARATION, A FUELLEAK OCCURRING IN THE PRESENCE OF AN IGNITION SOURCE COULD CAUSE A FIRE.

Remedy: INSTALL A PROPERLY CRIMPED FUEL RETURN HOSE.