GM Service Manual Online
For 1990-2009 cars only

Wheel alignment refers to the angular relationship between the following components :

    • The wheels
    • The suspension attaching parts
    • The ground

Four Wheel Alignment

Perform a complete wheel alignment inspection whenever a service inspection is necessary. This inspection includes the measurement of all 4 wheels. When the vehicle is aligned, the performance of the following is enhanced:

    • The fuel economy
    • The tire life
    • The steering
    • The performance

Refer to Vibration Diagnosis in Vibration Diagnosis and Correction.