Hi, The A/C compressor seems to be binding up and when the pulley doesn't turn the belt starts squealing. When I turn the A/C off the squealing stops. Would someone be able to tell me if this is a compressor problem, a clutch or would WD 40 help anything? Thanks. Right now it is not squealing because I sprayed some WD 40 on the pulley but I can't believe the remedy is something this simple. Thanks.