First thing you need to do is to check the belt tension and condition. If it requires adjustment or a new belt, that should be done first.
Next, check the harmonic damper, incorporated into the crank pulley. If it is bad, it can result in squealing as well.
If it is a compressor fault, most probably the engine would stall and not cause the noise only.
Monday, June 11th, 2012 AT 4:16 PM