hey yall, I was offroading yesterday and turned my AC on for the first time in a few months, and the compressor was squealing kinda loud, but the air was still cold, I have not checked the refrigerent psi I plan on doing that soon, I replaced the compressor clutch in july, anyone have any ideas as to what is causing the squealing?

truck is a 95 f150, with the 302

 

You're supposed to run your a/c a minimum of 15 minutes a month to prevent problems later.

Does it sound like the belt? The a/c compressor is the hardest accessory to turn.

 

no its not the belt it it kinda sounds like a metal on metal sound, my ac refrigerent could be low i guess

 

Even if the refigerant were low, you wouldn't be hearing metal on metal. There is something happening there.

 

it could be the compresor bearing they get dry inside during cold weather. if u been using the heater and defroze . compressor should turn on couple times to reduced moister. so even if u havent use ac at all compressor been on some times.

 

ya I have heard the compressor kick on a few times when running heat and defrost.

If I add some ac compressor oil to the system, do ya think it might help.

 

No the oil in the system its to lube the pistons and moving parts in compressor. and keep other parts in system lube. the compressor bearing its outside. behind the clutch. if u can remobe the belt and spind the pulley see if u can heard or feel the bearing

 

oh, I replaced that when I replaced my Clutch, this was in july, do you think it could have gone bad that fast?

 

never know , u can be the lucky one to get the bad new part. check it. remove the belt and see if still spinning free. if something its wrong with bearing u should be able to feel or heard. also u can check the compressor. turn the ignition key to run , but dont start the engine. turn AC on . that should energize the cluch then u can spin the pulley and see how it works . samething u can feel if something its wrong inside the compressor when u spin it.

 

sweet, I will try this soon, and get back with results thanks alot.