steevo96

Any help with my A/C problem would be greatly appreciated.

I have an 85 5 speed (carbed). I was having a problem with the compressor not engaging when I would turn the A/C on. I discovered thatthe compressor clutch that was the problem, when I would tap it with myhand it would then engage. I got along for awhile using that techniqe, but the clutch stopped working altogether the other day. I purchased a new clutch and installed it and nowit does not work either. I tested the compressor connectionwith a Voltmeter and it's not getting any voltage. Next, I checked for voltage at the pressure switch connection and there's no voltage there either. I know the clutch works because I connected it directly to the batter and it engages that way. So I'm think a relay switch may be the problem, but I have no idea where it would be located on this vehicle, so any help locating it or any suggestions of what else it could be would be appreciated.

Thanks!

WhiteWindsor

I dont have ac in my mustang, but i have been told that if low or no freon your compressor will not come on?

steevo96

Yes, when the freon is low the pressure switch will cycle the compressor on/off. I have already checked the switch and that's not the problem. The compressor coil is not getting any voltage, so there's a relay or something that's fried in the wiring.

85GTsleeper

eh screw a/c eliminator kit FTW [8D]

steevo96

Ha, I live in AZ. It was like 110 today........I'm dying!

1985stang

+1, you don't need a/c. It's called rolling your windows down.

steevo96

It's like a heater blowing in your face with the windows down in Arizona. LOL.......So can anyone give me some idea of where the friggin a/c compressor relay may be???

mjr46

I roast in mine in stop and go traffic in 90 to 95 degree heat with no A/C so I can't even imagine 110 degree heat ...at that point rolling the windows down would have no effect.....so I understand why you'd want a/c back asap

steevo96

I found the relay switch. It's under the cornerpanel on the passenger's side for future reference.