What Causes a Whining Noise in Cars?

Answer

There could be many reasons a car is making a whining noise. It could be a transmission problem or a differential gear problem. It could even be a power steering problem. Your best bet is to let a mechanic take a look at your car.
Q&A Related to "What Causes a Whining Noise in Cars?"
It could be incorrect air passage over the engine, from a tired fan belt or from the air from the fan or could be dirt in the brake pads. Best to seek the advice of a qualified mechanic
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If the washer is sitting on a floor that is weak or or one that is spongy, such as a carpeted floor, it can cause noise problems. The noises occur because the washer cannot function
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Usually caused by a bad bearing. In you case could be the alternator bearings or the water pump. Just need to isolate.
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The noise is nearly always caused by improper grounding of your system. There
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1 Additional Answer
There are many reasons as to why you may hear whining noises in your car. Some of the most common reasons for this noise include a loose bearing somewhere, an old and worn belt in the alternator, or even the water pump. Depending on where the whining noises are coming from on your vehicle, you may have a potentially major problem on your hands. In order to pinpoint the exact problem, take your vehicle into an auto repair shop to have it properly diagnosed and repaired.
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