Why does my car make a high-pitched noise? The car makes a high-pitched noise or a squealing noise coming from the engine is an indication that there is a problem with the drive belt.
The drive belt is the one that drives power to the engine accessories, when the belt is worn out or damaged high pitched engine noise is easily heard especially by the driver. Also the same with the alternator, if the alternator is faulty it will also produce a high-pitched noise.
Usually, the noise will happen if the bearing inside the alternator is worn out if the bearing inside the alternator has a problem this will produce high-pitched noise when the alternator is spinning.
Possible cause of the problem.
1. Damage or worn-out drive belt.
2. Faulty alternator.
What to do?
When your car encounters this problem, the first thing to do is to spray or lubricate the drive belt. Spray the bolt with WD40, you can find WD40 at any car accessory store. Spray the lubricant (WD40) on the underside of the drive belt.
If the alternator is not sealed spray the bearing with the WD40. It will temporarily stop the pitched noise coming from the engine. Bring the car to the repair shop, and asks the mechanic to check all the drive belts and the alternator if the problem is found repair it if necessary.
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