Whine or Growl Noise from the Power Steering System (Two-Mode)
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. 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 ear J 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 ear J 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 (HP2) , Steering Gear Replacement (Recirculating Ball Without LMM) , Steering Gear Replacement (Hydraulic Rack and Pinion) or Steering Gear Replacement (LMM) . 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 |