Operation CHARM: Car repair manuals for everyone.

Diagnostic Procedure # 3 - Tires

1. Spin the front tires to be sure that the front hubs are unlocked. If the hubs are unlocked, the axle shaft will not rotate with the wheels.

2. Measure tire circumference of all four tires; put the two closest circumference tires on the rear axle. Tire pressure must be equal on all tires.