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.

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 1,000 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
  1. Home
  2. Questions
  3. Why is my power steering pump still making a whiny sound.

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: Car stalling repeatedly

HI. It all depends when the stall happens, which will help isolate the problem. If the stall happens at highway speeds, then most likely the problem is the fuel pump or crankshaft sensor. If the stall is at stop lights...

Q: No front or rear license tag park lamps

Hey there. Any lights that are dark may be caused by bad wiring or a number of other issues. You are doing good to work through the circuit in your search. Under the conduit may be corrosion or a broken...

Q: Car won't turn over or start.

Since remote starters were not factory options, there is an aftermarket system in your vehicle. I would start there. If you can find out who the manufacturer of the system is, contact them to see if a wiring diagram is...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...