Whine or Growl Noise from the Power Steering System (Two-Mode)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you review the Power Steering System General Description and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Power Steering System |
| 2 | Verify that a whine or growl noise is present. Is a whine or growl noise present? |
Go to Step 3 | System OK |
| 3 | Inspect the power steering gear for looseness and/or worn bushings. Is the steering gear loose or the bushings worn? |
Go to Step 6 | Go to Step 4 |
| 4 | Inspect the power steering assist motor for a whine or growl noise using chassis earJ 39570
. Is the noise present at the power steering motor? |
Go to Step 7 | Go to Step 5 |
| 5 | Inspect the power steering gear for a whine or growl noise using chassis earJ 39570
. Is the noise present at the power steering gear? |
Go to Step 8 | Go to Step 3 |
| 6 | Tighten the power steering gear fasteners or replace the power steering gear due to worn bushings. Refer to the appropriate procedure(s):
Did you complete the repair? |
Go to Step 9 | - |
| 7 | Replace the power steering assist motor. Refer to Power Steering Assist Motor Replacement . Did you complete the repair? |
Go to Step 9 | - |
| 8 | Replace the power steering gear. Refer to Steering Gear Replacement (Rack and Pinion) or Steering Gear Replacement (Non-Rack and Pinion) or Steering Gear Replacement (Two Mode Hybrid) . Did you complete the repair? |
Go to Step 9 | - |
| 9 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |