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	Perform the power steering test procedure in order to diagnose a hydraulic condition and repair or replace a component. Refer to Power Steering System Test . Is there a hydraulic problem in the system?	Go to Step 12	Go to Step 4
4	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 8	Go to Step 5
5	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 9	Go to Step 6
6	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 10	Go to Step 7
7	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 11	Go to Step 3
8	Replace the power steering gear. Refer to Power Steering Gear Replacement (Rack and Pinion) or Power Steering Gear Replacement (Non Rack and Pinion) . Did you complete the repair?	Go to Step 12	-
9	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 12	-
10	Adjust the routing of the power steering hoses. Did you complete the repair?	Go to Step 12	-
11	Diagnose the hydraulic brake booster. Refer to Diagnostic Starting Point - Hydraulic Brakes in Hydraulic Brakes. Did you correct the condition?	Go to Step 12	-
12	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 3