Step
| Action
| Value(s)
| Yes
| No
|
DEFINITION:
On a dry, smooth, flat road, the vehicle has a left or right steering force
that is eliminated when the transmission is shifted into Neutral. The
level of the steering force is usually (but not always) dependent on
the amount of torque which is applied by the engine. Torque steer at constant
highway speed is frequently mistaken for lead/pull.
|
1
| Road test
the vehicle in order to verify the customer complaint.
Does the vehicle exhibit an abnormal amount of torque steer?
| --
|
Go to Step 2
| System OK
|
2
|
- Ensure that the tires are all the same size, make, and adequate
tread depth.
- Ensure that all of the tires are inflated to the correct pressure.
Refer to the Tire Placard on the I/P compartment door.
- Road test the vehicle in order to verify the customer complaint.
Does the vehicle still exhibit an abnormal amount of torque steer?
| --
|
Go to Step 3
| System OK
|
3
|
- Inspect the front suspension for worn or damaged components.
- Repair as necessary.
Has the inspection/repair been performed?
| --
|
Go to Step 4
| --
|
4
|
- Drive the vehicle on a straight, smooth, flat road at 64-97 km/h
(40-60 mph).
- Remove your foot from the accelerator.
- Shift the transmission into Neutral in order to allow the vehicle
to coast.
- Momentarily release the steering wheel and note any change in
the direction of the vehicle.
- Repeat this test with the vehicle traveling in the opposite direction
in order to eliminate crosswind effects. Lead/pull caused by unlevel roads
and crosswinds are considered normal.
Does the vehicle direction change when the steering wheel is momentarily
released?
| --
| Go to
Radial Tire Lead/Pull Correction
in Tires and Wheels
|
Go to Step 5
|
5
|
- Drive the vehicle on a straight, smooth, flat road.
- Shift the transmission into Drive.
- Press the accelerator and momentarily release the steering wheel.
- Repeat this test with the vehicle traveling in the opposite direction
in order to eliminate crosswind effects. Lead/pull caused by unlevel roads
and crosswinds are considered normal.
Does the vehicle exhibit torque steer when the accelerator is pressed?
| --
|
Go to Step 6
| System OK
|
6
|
- Inspect the vehicle trim height and repair as necessary. Refer
to
Trim Height Inspection
.
- Road test the vehicle in order to verify the customer complaint.
Does the vehicle still exhibit torque steer?
| --
|
Go to Step 7
| System OK
|
7
| Inspect for worn
or damaged powertrain mounts. Replace as necessary. Refer to the following
procedures:
Has the inspection/repair been performed?
| --
|
Go to Step 8
| --
|
8
|
- Correct the height difference by shimming the powertrain mounts.
- Road test the vehicle in order to verify the customer complaint.
Does the vehicle still exhibit torque steer?
| --
|
Go to Step 9
| System OK
|
9
| Inspect and adjust
the wheel alignment as necessary. Refer to
Wheel Alignment Measurement
in Wheel Alignment.
Has the inspection/adjustment been performed?
| --
|
Go to Step 1
| System OK
|