Why does my AC belt make a loud noise when I Turn on the AC?
Squealing noises when AC is on One of the most obvious signs that a belt needs to be replaced is that it will produce a loud squealing noise when the AC is turned on. In some cases, this may be attributed to a loose belt, or perhaps water or oil contamination.
Why is my AC belt no longer working?
In some cases, this may be attributed to a loose belt, or perhaps water or oil contamination. However, in other cases this may be attributed to a severely worn belt that can no longer properly grip the pulleys.
Why does my belt make a squealing noise?
That’s right, a misaligned belt or weak belt tensioner can damage the bearings in your alternator, power steering pump and AC compressor. I’ll show you several ways to diagnose a serpentine belt chirp or squeal using just a spray bottle and water.
Where does the AC belt go on a car?
The belt connects the AC compressor clutch to the engine crankshaft, which allows the compressor to be turned via the engine’s power when activated. As with most automotive belts, the AC belt will either be a V-belt or a serpentine.
Why is there a noise coming from my AC clutch?
In addition to the AC compressor clutch, we also talk about repairing the AC belt idler pulley and other possible noises during AC operation. So if you ever need to replace an AC compressor clutch or have a noise coming from the idler pulley on your AC system, this video is for you. Here’s some useful links.
Why does my car belt squeal when I start the AC?
If the belt only squeals when you start the car with the AC on, it is probably the belt or the tensioner. If the belt squeals when you turn the AC on after the car it running, it possibly could be something with the AC compressor, but I’d still start with the belt or the tensioner.
Do you have to have the belt off to turn the compressor?
You don’t have to have the belt off to turn the compressor. Just turn the outermost part of the magnetic clutch. That part is connected to the compressor shaft. The clutch free wheels when not engaged.:smile:
Why does my AC make a grinding noise when I turn it on?
Pulley: If the compressor pulley bearings are failing, they can make noises, generally a grinding, roaring or squealing noise. Belt: If the serpentine belt is worn, it can slip when the compressor engages, causing noises. Idler Pulley: It’s possible that the noise is actually from the idler pulley if its bearings are failing.