Compressor overhauled by Joe at Polar Bear . Many conversations with Joe . Back and forth shipping twice . He is very gracious. Simply stated compressor clutch BENCH checks good with direct jump from 12 volt battery . Clutch does everything it should , moves , clicks, etc. install it in car and it will not engage with th identical jump wires, battery , etc. Have changed fuse, relay, binary switch just to throw parts at it . Why would the A/C clutch work on the bench and not when mounted in the car with the identical jump wires and battery ?
I assume you are checking it is getting volts with a meter at the dame time, how many volts is it showing
Have circuit tester on it . . Positive jumped to the compressor. Negative jump to ground on the compressor. Put the tester on the ground and get nothing . Ugh
What exactly is a “circuit tester”? The clutch only has one green/black wire (i.e. power). Is the clutch physically attached to the compressor and the compressor earthed to the chassis and the battery cutoff switch not in cutoff?
Yes to all . Frankly I think the clutch coil maybe the culprit. It is a remanufactured one . I removed the underbody covers for the umtenth time, took the ac belt off knowing it should NOT make a difference and it did not . I’m going to order a freshly rebuilt unit . I can now do the compressor remove and replace in my sleep .
Weird. I'm trying to understand how the 360 compressor is wired up. Image Unavailable, Please Login Power comes in on a single wire plug from the relay (according to the wiring diagrams). Why is there an earth wire going into the harness? Does that single thin black harness going to the clutch contain two thin wires? i.e. is there an earth wire looped back from the earth bolt to the clutch? And the separate battery is hooked up properly to the car's chassis? And the compressor is properly attached to the chassis?
Assuming u r getting 12 volts between the clutch supply and the earth point it should pull the clutch in. Try a resistance reading between the compressor body and the clutch casing- in case you are losing the earth through the bearings or shaft
Removed Polar Bear compressor and clutch would not activate on the bench with direct 12v. Tried another overhauled unit from another source. It looked so bad I sent it back. I gave up and bought an aftermarket replacement. We will see.
Purchased through AWItalian in NJ. Owner stated it was Chinese but he has the units “checked out “ by a specific individual he uses. Who knows , but at this point I have few options .
After many trials and tribulations I would easily recommend these folks . Call them and I think all questions will be answered with all available options. I could have saved a lot of time if I had found them initially. https://automotivebudget.com/
The ac ecu circuit will not send a signal to the ac clutch unless certain conditions are met. It must sense xx psi at the pressure switch. I would not expect the ac comp clutch to kick on installed on the car w no Freon. if you were just applying 12v straight to the clutch and in op then I see your logic. pardon if this was done this way.
