Growl Noise in Steering Pump. GMC Truck GMC P62 Commercial Chassis 1997

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 1997 🢒 GMC P62 Commercial Chassis 🢒 Steering 🢒 Power Steering System 🢒 Growl Noise in Steering Pump

Growl Noise in Steering Pump While Driving

Growl in Power Steering Pump

Step	Action	Value	Yes	No
1	Check the pressure hoses. Restriction causes excessive back pressure. Are the pressure hoses restricted?	--	Go to Step 2	Go to Step 3
2	Locate the restriction. Correct the restriction. Does the growl in the power steering pump continue?	--	Go to Step 3	System OK
3	Check the steering gear. Restriction causes excessive back pressure. Is the steering gear restricted?	--	Go to Step 4	System OK
4	Locate the restriction. Correct the restriction. Does the growl in the power steering pump continue?	--	--	System OK

Growl Noise in Steering Pump While Parked

Growl in Power Steering Pump During Parking

Step	Action	Value	Yes	No
1	Check the pressure plates. Are the pressure plates scored?	--	Go to Step 2	Go to Step 3
2	Replace the damaged parts. Flush the power steering system. Refer to Power Steering System Flushing Does the growl sound in the steering pump continue to exist?	--	Go to Step 3	System OK
3	Check the thrust plate. Is the thrust plate scored?	--	Go to Step 4	Go to Step 5
4	Replace the damaged part. Flush the power steering system. Refer to Power Steering System Flushing Does the growl in the power steering pump continue to exist?	--	Go to Step 5	System OK
5	Check the rotor. Is the rotor scored?	--	Go to Step 6	Go to Step 7
6	Replace the damaged part. Flush the power steering system. Refer to Power Steering System Flushing Does the growl in the power steering pump continue to exist?	--	Go to Step 7	System OK
7	Check the cam ring. Is the cam ring extremely worn?	--	Go to Step 8	System OK
8	Replace the damaged parts. Does the growl in the power steering pump continue to exist?	--	--	System OK