Skip the auto shop - Our mechanics make house calls

Q: High pitch whining from alternator.

asked by on

Going high speeds and/or pressing on the accelerator causes the accelerator to make a high pitch whining noise. It has never done this before until continuously driving on the interstate moving at high speeds.

My car has 163000 miles.
My car has an automatic transmission.

A: This can come from a variety of places othe...

This can come from a variety of places other than the alternator such as the transmission. Your car should be equipped with what is called a CVT (constant variable speed transmission) which is notorious for making this kind of a sound as the engine rpms are increased. Because this can come from many areas, this may be difficult without taking the vehicle for a test drive. I would recommend having an expert from YourMechanic come to your home to diagnose this whining noise and make repairs.

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

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: Car won't start easily in the mornings. I have to wait 30 seconds then it will start.

Does the vehicle restart if you turn it off after it warms up? You should start by testing your fuel pump. Before starting the vehicle in the morning, turn the key to the on position two or three times. Turn...

Q: Interior lights are not working

The most likely cause of this issue would be a short to ground somewhere in the interior lighting system. If a wire has too much metal exposed and it is coming in contact with the vehicle's chassis, excess amperage is...

Q: ABS Module can not be reprogrammed

Hello. I would first contact the vendor who sold you the new ABS module. Reputable dealers and ABS module rebuilders are pretty good at guiding you through the "programming" aspect of this replacement. While there are some ABS modules that...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...