Road Test

Use the flow chart on the facing page to determine if a vehicle pull is most likely caused by steering pull or torque steer. Perform the road test on a flat level road and with minimum wind conditions.

Drive - Steady Speed: 72-88 km/h (45-55 mph) in drive maintaining a steady speed.

Neutral - Coast: 72-88 km/h (45-55 mph) in neutral coasting.

Fig 1: Pull Diagnosis Flow Chart

Courtesy of GENERAL MOTORS CORP.

Fig 2: Front Wheel Drive Steering Pull Correction Chart

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Fig 3: Front Wheel Drive Torque Steer Correction Chart

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Fig 4: Front Wheel Drive Wander Correction Chart

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Fig 5: Vibration Complaint

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