Pinpoint Test D: Wheel End Vibration Analysis
- D1: INSPECT THE TIRES
- Inspect the tires.
- Raise and support the vehicle. Refer to:
- Inspect the tires for:
- Correct tire size
- Tire/wheel compatibility
- Wear or damage
- Tire beads correctly seated
Are the tires OK?
- Yes : GO to D2.
- No : Inspect the wheels. For additional information, refer to DIAGNOSIS AND TESTING .
- Inspect the tires.
- D2: INSPECT WHEEL BEARINGS
- Inspect the wheel bearings. For additional information, refer to DIAGNOSIS AND TESTING .
Are the wheel bearings OK?
- Yes : GO to D3.
- No : Repair as necessary. Repeat the Road Test as outlined.
- D3: INSPECT THE CONSTANT VELOCITY (CV) JOINT BOOTS
- Inspect the CV joint boots.
- Spin the rear tire by hand
- Inspect for evidence of cracks, tears, splits or splattered grease
Are the CV joint boots OK?
- Yes : GO to D4.
- No : Repair as necessary. Repeat the Road Test as outlined.
- Inspect the CV joint boots.
- D4: INSPECT WHEEL AND TIRE RUNOUT
- Inspect the wheel and tire runout.
- Carry out the Wheel and Tire Check procedure.
Refer to LIFTING POINTS-TWIN-POST HOIST or LIFTING POINTS-FLOOR JACK AND AXLE STANDS .
Is the wheel and tire runout OK?
- Yes : Balance the wheels and tires. Refer to the wheel balance equipment manufacturers instructions.
- No
: Repair as necessary.
Refer to LIFTING POINTS-TWIN-POST HOIST or LIFTING POINTS-FLOOR JACK AND AXLE STANDS .
Repeat the Road Test as outlined.
- Inspect the wheel and tire runout.