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GMC B6P042 Recall 86V086: Service Brakes, Hydraulic:Fluid

NHTSA campaign 86V086, reported July 7, 1986, 4,299 vehicles potentially affected.

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The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 86V086GENERAL MOTORS CORP.
Component
SERVICE BRAKES, HYDRAULIC:FLUID
Problem
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.
Risk
Remedy
AS NECESSARY, REPLACE FRONT BRAKE CHAMBER MOUNTING BRACKETS AND INSTALL A FRONT BRAKE LIMITING VALVE.
Notes
SYSTEM: BRAKES. VEHICLE DESCRIPTION: SCHOOL BUSES EQUIPPED WITH A 7500 LB. FRONT AXLE AND WITHOUT A FRONT BRAKE LIMITING VALVE.

Affected vehicles

Chevrolet B6P0421983198419851986
GMC B6P0421983198419851986