Skip the auto shop - Our mechanics make house calls

Q: When accelerating car makes winding sound. What could it be?

asked by on

When accelerating my car makes a winding kind of sound, what could it be?

My car has 83000 miles.
My car has an automatic transmission.

A: This may be related to a variety of things ...

This may be related to a variety of things that are driven by the serpentine belt that may correlate to the acceleration, however the most common noises resembling a whining sound are a failing alternator or a power steering pump that is failing or low on fluid.

As you may know, the alternator is responsible for charging the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator. When the alternator begins to fail, the bearings inside my cause a whining sound that will correlate with engine speed or acceleration.

The power steering system operates on very high pressurized hydraulic pressure (in some cases as much as 300 psi). As a result, the pump works very hard to maintain the ability to assist turning your steering wheel and when the pump is overworked due to the rack and pinion not pump fluid properly or potentially due to pinched fluid lines, this may cause it to leak. I would recommend having an expert from YourMechanic come to your location 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・Fair and transparent pricing

Get a quote

What others are asking

Q: Car is missing

Hi There, An engine misfire can be caused by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination of both. Spark related problems generally will result from things like...

Q: Car will not start without being jump-started

Hello. Most of the time this is caused by a bad battery cable or a failing ignition switch. Both are common failures on this car and will cause these symptoms. I typically do a voltage drop test of the battery...

Q: Car not getting power

The information provided for your Mercury is a bit limited, however, I can attempt to point you in the right direction. I assume we are talking about electrical power as you have questioned the alternator. The alternators job is to...

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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.