Component Tests and General Diagnostics

Wheel Mounting Surface Check

Caution: Refer to Safety Glasses Caution (Safety Glasses Warning) .
Caution: Refer to Vehicle Lifting Caution (Service Precautions) .
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair) .
2. Remove the wheels. Refer to Tire and Wheel Removal and Installation (Service and Repair) .
3. Inspect the wheel stud holes for damage. If damage is found the wheel must be replaced. Refer to Replacement Wheels Description (Description and Operation) .
4. Thoroughly clean the wheel mounting surface.





Important: Use a straight edge (1) 150 to 165 mm (6 to 6.5 in) long.



Important: If you can rock the straight edge (1) the mounting surface (2) is bent and the wheel must be replaced.



Important: For steel wheels the outer mounting ring (4) is designed to be raised slightly above the inner mounting ring (3).


5. Place a straight edge (1) across the wheel inboard mounting surface (2) over a wheel stud hole. Attempt to rock the straight edge up and down on the mounting surface.
6. Repeat Step 5 over every wheel stud hole.
7. Replace wheels as required. Refer to Replacement Wheels Description (Description and Operation) and Tire Dismounting and Mounting (Removal and Replacement) .
8. Remove the safety stands.
9. Lower the vehicle to the ground.