Whine or Growl Noise from the Power Steering System (With Hydraulic Brake Booster)
| 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 fluid for the following indications of contamination:
Is the fluid free of contamination? |
Go to Step 5 | Go to Step 4 |
| 4 | Flush the power steering system. Refer to Power Steering System Flushing . Did you complete the procedure? |
Go to Step 13 | Go to Step 5 |
| 5 | Inspect the power steering gear for a whine or growl noise using J 39570
. Is the noise present at the power steering gear? |
Go to Step 9 | Go to Step 6 |
| 6 | Inspect the power steering pump for a whine or growl noise using J 39570
. Is the noise present at the power steering pump? |
Go to Step 10 | Go to Step 7 |
| 7 | Inspect the power steering hoses for a whine or growl noise using J 39570
. Is the noise present at the power steering hoses? |
Go to Step 11 | Go to Step 8 |
| 8 | Inspect the hydraulic brake booster for a whine or growl noise using J 39570
. Is the noise present at the hydro boost? |
Go to Step 12 | - |
| 9 | Replace the power steering gear. Refer to Steering Gear Replacement (Non-Rack and Pinion) or Steering Gear Replacement (Rack and Pinion) or Steering Gear Replacement (Two Mode Hybrid) . Did you complete the repair? |
Go to Step 13 | - |
| 10 | Replace the power steering pump. Refer to Power Steering Pump Replacement (4.8L, 5.3L, 6.0L, and 6.2L) . Did you complete the repair? |
Go to Step 13 | - |
| 11 | Adjust the routing of the power steering hoses. Did you complete the repair? |
Go to Step 13 | - |
| 12 | Diagnose the hydraulic brake booster. Refer to Diagnostic Starting Point - Hydraulic Brakes
. Did you correct the condition? |
Go to Step 13 | - |
| 13 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |