Whining noise from engine at idle and acceleration

For the most part a whining noise in your car is going to be made by something in the engine compartment.  The likely cause will be determined by when you hear the noise.

Why is my car making a whining noise when i turn

With that in mind, this page is divided by when you hear the noise, and common causes of the whining noise under those conditions.

Before you go any further, is the whining noise constant when you rev the engine?

 Or does it not change with engine speed?  If it changes with the engine, it’s most likely going to be an accessory bolted to the engine (or the radio, shut it off and see if it stops).  If it stay constant as you rev the engine it’s going to be something else.

Car Making Whining Noise When Accelerating

A whining sound when accelerating is almost always caused by a bad engine accessory.

 Here are the most common causes of whining noises when accelerating:

Bad Serpentine Belt

Your car’s serpentine belt is responsible for taking the motion from the crankshaft, and using it to turn all of your accessories.

 When it goes bad, it

my car is making a squealing sound

my car engine is making a whining sound