Vehicle Lead Diagnosis and Correction

DIAGNOSIS AND TESTING - VEHICLE LEAD DIAGNOSIS AND CORRECTION
Use the following chart to diagnose a vehicle that has a complaint of a drift or lead condition. The use of this chart will help to determine if the lead condition is the result of a bad tire or is caused by the wheel alignment.







VEHICLE LEAD DIAGNOSIS AND CORRECTION PROCEDURES


Improper inflation can cause:
- Uneven wear patterns
- Reduced tread life
- Reduced fuel economy
- Unsatisfactory ride
- The vehicle to drift.

WARNING: OVER OR UNDER INFLATED TIRES CAN AFFECT VEHICLE HANDLING. THE TIRE CAN FAIL SUDDENLY, RESULTING IN LOSS OF VEHICLE CONTROL.





Under inflation causes rapid shoulder wear, tire flexing, and can result in tire failure.





Over inflation causes rapid center wear and loss of the tire's ability to cushion shocks.