Step | Action | Yes | No | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
DEFINITION: Lead/pull is the deviation of the vehicle from a straight path on a level road with no pressure on the steering wheel. Use the lead/pull correction table in order to verify that improper wheel alignment or worn components are not mistaken for tire lead. | |||||||||||||
1 | Did you review the General Description and perform the necessary inspections? | Go to Step 2 | |||||||||||
2 | Road test the vehicle in order to verify the complaint. Select a smooth level surface to perform the test. Does the vehicle operate normally? | System OK | Go to Step 3 | ||||||||||
3 | Inspect the tire/wheel assemblies for the following conditions:
Do any of the above conditions apply? | Go to Step 4 | Go to Step 5 | ||||||||||
4 | Repair/replace the tire/wheel assemblies as necessary. Did you complete the repair? | Go to Step 15 | -- | ||||||||||
5 | Inspect the front/rear suspensions for the following conditions:
Do any of the above conditions apply? | Go to Step 6 | Go to Step 7 | ||||||||||
6 | Repair/replace components as necessary.
Did you complete the repair? | Go to Step 15 | -- | ||||||||||
7 | Inspect the brake system for brake drag. Refer to Diagnostic Starting Point - Hydraulic Brakes in Hydraulic Brakes. Do any of the above conditions apply? | Go to Step 8 | Go to Step 9 | ||||||||||
8 | Repair/replace components as necessary. Did you complete the repair? | Go to Step 15 | -- | ||||||||||
9 | Inspect the steering gear valve for an unbalance. If this is the cause, steering effort will be very light in the direction of the lead and effort will be heavy in the opposite direction with the vehicle parked on a smooth level surface. Does the above condition apply? | Go to Step 10 | Go to Step 11 | ||||||||||
10 | Replace the steering gear. Refer to Steering Gear Replacement in Power Steering System. Did you complete the repair? | Go to Step 15 | -- | ||||||||||
11 | Inspect the wheel alignment. Refer to Wheel Alignment Measurement in Wheel Alignment. Is the wheel alignment in specifications? | Go to Step 13 | Go to Step 12 | ||||||||||
12 | Adjust alignment to specifications. Refer to Wheel Alignment Measurement in Wheel Alignment. Did you complete the repair? | Go to Step 15 | -- | ||||||||||
13 |
Does the vehicle still lead/pull? | Go to Step 14 | System OK | ||||||||||
14 | Does the vehicle lead/pull in the opposite direction? | Go to Radial Tire Lead/Pull Correction in Tires and Wheels | Go to Step 15 | ||||||||||
15 | Operate the vehicle in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 | ||||||||||
