Whine or Growl Noise from the Power Steering System
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools
CH-39570 Chassis Ear
Equivalent regional tools:Special Tools
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you review the Power Steering System Description and Operation 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 fasteners for looseness and inspect the power steering gear mounting surface for damage. Are the steering gear fasteners loose and/or the mounting surface damaged? |
Go to Step 6 | Go to Step 4 |
| 4 | Inspect the power steering assist motor for a whine or growl noise using the CH-39570
chassis ear. Is the noise present at the power steering assist motor? |
Go to Step 7 | Go to Step 5 |
| 5 | Inspect the power steering gear for a whine or growl noise using the CH-39570
chassis ear. Is the noise present at the power steering gear? |
Go to Step 8 | Go to Step 3 |
| 6 | If the mounting surface on the power steering gear is NOT damaged then replace the power steering gear fasteners. If the mounting surface on the power steering gear IS damaged then replace the power steering gear AND power steering gear fasteners. Refer to: 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 Electric Belt Drive Rack and Pinion Steering Gear Replacement . 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 |