Skip the auto shop - Our mechanics make house calls

Q: Why is my power steering pump still making a whiny sound.

asked by on

I just recently replaced both my power steering pump as well as the rack and pinion. I have bled the system for about 2 days now and have already drove at least 100 miles since the repair, but it still whines when in low gear. What could causing the issue?

My car has 150000 miles.
My car has an automatic transmission.

A: Hi there. Many replacement pumps make a whi...

Hi there. Many replacement pumps make a whine noise. These pumps are remanufactures and this is generally accepted as a normal condition of these replacements, however this is not the case for all replacement pumps; the quieter the better for me personally. Is the power steering working properly? If not, then this could definitely be a cause for concern. Also, many power steering systems have screens that may need to be cleaned during pump or steering rack service. If this screen is restricted, the pump will whine. This screen could be in the pump, steering rack, or a line; many of them are not serviceable. Were the lines cleared during the repair to make sure debris was not left in the system? Make sure the correct type of fluid is being used as this can cause concerns as well. A replacement pump may or may not whine as well. I suggest having a qualified technician perform an inspection to determine the cause of the whine and avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a power steering whine noise inspection.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Small leak from hose

A transmission line would be the most likely part that has failed based on the location you described. If your transmission fluid is leaking, I would have this issue fixed as soon as possible because if you loose too much,...

Q: Cut out engine rattled then kept going as if never happened

On this engine you may have a problem with the valve seats in the engine coming loose or the variable valve system is not working as it should. If the check engine light is on then have system scanner to...

Q: VATS security issue

Hi there. From the description you have provided, the VATS (vehicle anti-theft system) in your vehicle can be repaired. I have in the past, bypassed the system by tricking the security module. Unfortunately, if the battery goes dead or is...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...