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1978 Chevrolet Chevrolet Truck Recalls

  1. Recall Description

    THE HYDRAULIC STEEL BRAKE TUBE CONNECTING THE BRAKE HOSE TO THE LEFT OR RIGHT FRONT TOP WHEEL CYLINDER MAY DEVELOP A FRACTURE IN THE BEND NEXT TO THE WHEEL CYLINDER. THIS FRACTURE RESULTS FROM PERIODIC HIGH STRESSES IN THE TUBE DUE TO "BRAKE CHATTER" WHICH CAN OCCUR DURING CERTAIN ENVIRONMENTAL CONDITIONS.

    Possible Effects

    Action

    THE DEALER WILL REPLACE THE FRONT BRAKE TUBES AT NO CHARGE TO OWNER.

    Notes

    VEHICLE DESCRIPTION: MEDIUM AND HEAVY TRUCKS EQUIPPED WITH 7000 LB. FRONT AXLESAND STANDARD HYDRAULIC BRAKES OR 12,000 LB. FRONT AXLES WITH HYDRAULIC BRAKES.SYSTEM: SERVICE BRAKES; HYDRAULIC STEEL BRAKE TUBE.CONSEQUENCES OF DEFECT: A FRACTURED TUBE WILL RESULT IN A BRAKE SYSTEM FLUIDLEAK AND LOSS OF BRAKING ACTION. THIS COULD OCCUR WITHOUT PRIOR WARNING ANDCOULD CAUSE A VEHICLE ACCIDENT.

    Recall Manufacture Dates

    1978-09-01 - 1979-07-01

    Vehicles Affected

    46556

  2. Recall Description

    A MISROUTING OF THE POSITIVE BATTERY CABLE MAY EXIST. AS A RESULT, THE POSITIVE BATTERY CABLE INSULATION COULD BE DAMAGED FROM EXHAUST MANIFOLD HEAT. THE WIRE IN THE CABLE MAY THEN CONTACT AND DAMAGE THE METAL BRAKE TUBE.

    Possible Effects

    Action

    ALL INVOLVED VEHICLES WILL BE INSPECTED FOR POSITIVE BATTERY CABLE MISROUTING AND POSSIBLE HEAT DAMAGE TO THE INSULATION. IF NECESSARY, THE POSITIVE BATTERY CABLE WILL BE REPLACED OR REROUTED AT NO CHARGE TO OWNER.

    Notes

    VEHICLE DESCRIPTION: MEDIUM TRUCKS EQUIPPED WITH HYDRAULIC BRAKES, MARK IVENGINES AND FRAME MOUNTED BATTERIES.SYSTEM: ELECTRICAL; BATTERY CABLE, POSITIVE.CONSEQUENCES OF DEFECT: A DAMAGED TUBE COULD RESULT IN A BRAKE FLUID LEAK AND ALOSS OF BRAKING CAPABILITY. THIS COULD OCCUR WITHOUT PRIOR WARNING AND CAUSE AVEHICLE ACCIDENT.

    Recall Manufacture Dates

    1978-09-01 - 1979-06-01

    Vehicles Affected

    8474

  3. Recall Description

    DURING TESTING OF THE FIRE APPARATUS, EXTREME HEAT GENERATED FROM THE RIGHT SIDE ENGINE EXHAUST MANIFOLD, RESULTED IN DAMAGE TO THE BRAKE HOSE AT THE FRAME FITTING. THIS COULD CAUSE A LEAK IN THE FRONT AXLE HYDRAULIC BRAKE HOSE.

    Possible Effects

    Action

    DEALER WILL INSTALL AN EXHAUST HEAT SHIELD AT THE RIGHT SIDE FRAME TO BRAKE HOSE FITTING AND REPLACE FRONT BRAKE HOSES AT NO CHARGE TO OWNER.

    Notes

    VEHICLE DESCRIPTION: MEDIUM TRUCKS EQUIPPED WITH HYDRAULIC BRAKES, MARK IVENGINES AND FIRE APPARATUS.SYSTEM: SERVICE BRAKES; HYDRAULIC BRAKE HOSE.CONSEQUENCES OF DEFECT: A LEAK IN THE BRAKE HOSE WOULD RESULT IN LOSS OFBRAKING ACTION WITHOUT PRIOR WARNING AND, POSSIBLY, AN ACCIDENT.

    Recall Manufacture Dates

    1978-09-01 - 1980-01-01

    Vehicles Affected

    850

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