Econoline E150 1/2 Ton V6-4.2L VIN 2 (1998)
Wheels: Component Tests and General Diagnostics
DESCRIPTION
Excessive radial and lateral runout of a wheel and tire assembly can cause roughness, vibration, wheel tramp, tire wear, and steering wheel tremor.
Before checking runout, and to avoid false readings caused by temporary flat spots in the tires, check runout only after the vehicle has been driven far
enough to warm the tires.
Measure the extent of the runout with Rotunda Radial Runout Gauge. All measurements are made on the vehicle with the tires inflated to
recommended inflation pressures and with the front wheel bearings adjusted to specifications.
TIRE RUNOUT
Measure radial and lateral tire runout at the positions shown. Runout should not exceed 1.27 mm (0.050 inch).
WHEEL RUNOUT
Measure radial and lateral wheel runout at the positions shown. Runout should not exceed 1.12 mm (0.044 inch) in either position.
