Why does my AC squeal?
5

Asked by Maria Mar 19, 2023 at 10:12 PM about the 2017 Toyota Corolla SE

Question type: Maintenance & Repair

I have a 2017 Toyota corolla SE my AC squeaks when I turn it on. Air comes
out cold, the squeaking only occurs when the AC is turned on after I turn it off it
stops not sure if it would be a belt issue or the blower motor.

1 Answer
202,335

Ed92626 answered about a year ago

When you turn on the AC, it puts a heavy drag on the engine and the serpentine belt. If the belt is worn out, it slides over the pulley and makes a squealing sound. You can spray a belt treatment on the belt to quiet it, but that's only temporary. It's best to just have the belt replaced. When the mechanic replaces the belt, he'll check all the pulleys, guides and tensioner to assure that they're good.

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