Pinpoint Test B: Vibration When Brakes Are Applied
- B1: ROAD TEST VEHICLE
- 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. Refer to: NOISE, VIBRATION AND HARSHNESS REPEAT road test if necessary
No
GO to B2.
- B2: CHECK FOR BRAKE VIBRATION
- 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 tyres 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 B3.
No
Vehicle is OK
- B3: IS VIBRATION STILL PRESENT UNDER BRAKE APPLICATION?
- 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 gear bushings. CHECK for wear or failure of steering gear ball joints.
CHECK for wear or failure of front wheel bearings, suspension bushings and ball joints. CHECK for wear or failure of rear wheel bearings, suspension bushings and ball joints. REFER to relevant article in repair information and INSTALL new parts as necessary
No
Vehicle is OK