Inspection and Verification

Four Wheel Drive (4WD) Systems - All Wheel Drive (AWD)

Inspection and Verification - All-Wheel Drive (AWD)

1. NOTE: Driving habits as well as road and weather conditions should be noted.

Road test the vehicle to verify the concern, noting the road speed, engine speed and speed range where the vehicle problem is evident.

2. Raise the vehicle on the hoist and position suitable safety floor stands under the vehicle. Refer to Vehicle Jacking and Lifting.

3. Run the vehicle at the road speed where the concern exists. Verify the concern:
- Engine

- Transmission

- Front/rear driveline components

- Front/rear drive axles

- Front/rear brake systems

- Front/rear wheels or tires

- Transfer case

4. Refer to the appropriate Owner's Literature for operating data. Verify the concern as driveline or torsional windup before repairing the transfer case.

5. Check the tires and vehicle load if the problem is clearly driveline windup and not broken parts.

6. If the concern is not visually evident, GO to Symptom Chart - All Wheel Drive (AWD) or GO to Symptom Chart - NVH. Symptom Chart - All-Wheel Drive (AWD) Symptom Chart - NVH