Weird. If I had to guess it sounds like a bearing is going.
The system is protected from running when there is not enough freon. So the pump should not engage if the freon is low. Unless someone has bypassed your pressure switch so that the pump will run regardless.
took it to my guy,he said are you sure it's the compressor?? so I opened the hood and turned it on.....3 seconds later "OK OK YOUR RIGHT" please turn it OFF.found a comp.from a rear ended writeoff ,going to change the drier and diaghram tube just to be on the safe side
A forum community dedicated to all General Motors truck owners and enthusiasts. Come join the discussion about performance, lift kits, wheels, tires, modifications, troubleshooting, maintenance, and more!