Title: Measure wheel, tire, axle flange, and hub runout; determine needed action.
Course: Automotive Technology III (20104-III) > Section: Suspension and Steering: Wheels and Tires Diagnosis and Repair

Measurement should include

- conducting a visual inspection, according to state inspection procedures
- using specialized tools, according to manufacturer guidelines
- checking for road force variation and tire/wheel runout.

ASE Education Foundation
2017 Automobile Service Technology (AST) Level
IV. Suspension and Steering
F. Wheels and Tires Diagnosis and Repair
Task 4

Process/Skill Questions:

- What would cause an axle flange to have runout?
- Why is it important to ensure the face of the axle flange is clean before mounting wheels or rotors?
- What is the difference between lateral and radial runout?