Operation CHARM: Car repair manuals for everyone.

Pinpoint Test G189234p2: Vibration When Brakes Are Applied

PINPOINT TEST G189234p2: VIBRATION WHEN BRAKES ARE APPLIED

G189234t3: ROAD TEST VEHICLE
1. Road test the vehicle between 40 - 80 km/h (25 - 50 mph) without applying brakes.

^ Is the vibration present?

-> Yes TEST for noise vibration and harshness. For additional information, refer to Vehicle/Testing and Inspection. REPEAT road test if necessary.

-> No GO to Pinpoint Test G189234t4.

G189234t4: CHECK FOR BRAKE VIBRATION
1. Road test the vehicle between 40 - 80 km/h (25 - 50 mph) with light and medium application on the brake pedal.

^ Is a vibration present?

-> Yes CHECK the brake caliper mounting bolts and wheel hub nuts and TIGHTEN as necessary. CHECK the balance of all road wheels and REPAIR as necessary. CHECK the brake discs for excessive wear, runout, thickness variation or cracks. INSTALL new brake discs and brake pads as necessary. GO to Pinpoint Test G189234t5.

-> No Vehicle is OK.

G189234t5: IS VIBRATION STILL PRESENT UNDER BRAKE APPLICATION?
1. Road test the vehicle between 40 - 80 km/h (25 - 50 mph) with light and medium application on the brake pedal.

^ Is a vibration present?

-> Yes CHECK for wear or failure of steering bushes. CHECK for wear or failure of steering ball joints. CHECK for wear or failure of front wheel bearings, suspension bushes and ball joints. CHECK for wear or failure of rear wheel bearings, suspension bushes and ball joints.

-> No Vehicle is OK.