Skip the auto shop - Our mechanics make house calls

Q: Power steering system

asked by on

I'm having an issue when I turn my steering wheel sharp left or right and I get a high pitched whining from the wheel

My car has 146000 miles.
My car has an automatic transmission.

A: This may be related to a failing power stee...

This may be related to a failing power steering pump or low power steering fluid levels. As you may know, the power steering system uses a pump, normally driven by a belt. The pump supplies pressure as it is turned by your engine, and driver control is supplied by either the rack and pinion or a steering gear box. Fluid pressure from the pump is used to push against a piston. When the wheel is turned, pressure flows to one side and this piston moves. The piston is attached to the steering gears. As the hydraulic pressure does the work, the driver controls the direction by turning the steering wheel. When the pump is low on fluid, it may produce this kind of high pitched whining sound you describe. I would recommend having an expert from YourMechanic come to your home to diagnose your power steering system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Suddenly want to over heat right away once started.

The easiest and cheapest thing to do is to replace the water pump and thermostat. These would be my first suspicions. Check the radiator to see if the fan is working properly by putting a piece of paper in front...

Q: Not too happy with having a hybrid that stalls

The problem to your intermittent stalling can be caused by the electrical water pump wiring shorting out the coil wires, causing the engine to stall and may or may not blow fuses. The repair is now covered under a recall...

Q: Power steering fluid leaking in a 2002 Chevrolet Monte Carlo

The power steering system uses the fluid to help you hydraulically turn the vehicle. If the fluid leaks out, from say a torn hose, it has nothing to develop hydraulic pressure with. This causes the condition you are experiencing. If...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...