I have a 94 Nissan Sentra. Right now my radiator and A/C fan do not work but as long as the car is in motion, everything is getting cooled OK. During normal operation, when the compressor kicks on, it makes a squealing sound for a second and then stops. During that time, the air coming out of the vents gets warmer and then cools right down again. Also, when I have the hood open and the A/C is on, the compressor kind of makes a knocking sound.
Both fans run off of a single relay, and the fuses and relay have been tested good. Any ideas on both / either issue would be much appreciated.
Thanks in advance.