Whine or Growl Noise from the Power Steering System

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 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	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 Procedure . Is there a hydraulic problem in the system?	Go to Step 10	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 7	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 8	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 9	Go to Step 3
7	Replace the power steering gear. Refer to Power Steering Gear Replacement (Rack and Pinion) Power Steering Gear Replacement (Non Rack and Pinion) . Did you complete the repair?	Go to Step 10	-
8	Replace the power steering pump. Refer to Power Steering Pump Replacement (4.3L) Power Steering Pump Replacement (4.8L, 5.3L and 6.0L) Power Steering Pump Replacement (8.1L) Power Steering Pump Replacement (6.6L Diesel) Power Steering Pump Replacement (Parallel Hybrid Truck) . Did you complete the repair?	Go to Step 10	-
9	Adjust the routing of the power steering hoses. Did you complete the repair?	Go to Step 10	-
10	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 3