The air conditioning compressor is driven by a belt. Check the tension on the belt. If there is more than 1/2 inch of play in the belt, tighten it.
Cooling fan bearing?
lack of oil
super charging could be done to a car
It could be the bearing in your tension pulley.
could be the throw out bearing
loose or glazed fan belt.
It Could Be Your Serpentine Belt too tight or not tight enough.
Yes.Equally likely is if the belt is much more than 3-4 years, the material is glazing over or hardening, which is another common cause of squealing.
it could be a serpentine belt or accessory belt.
A worn or loose out of adjustment drive belt could be the cause.
It could be a bearing in an idler pulley.
It could be the transmission, it could be some parts under the vehicle that rub only when travelling forward.