My AC stopped working the other day

[Bird-o-Prey]

Does anyone know where the relay for the A/C compressor is in an Eagle wagon?  Is it one of the relays in the rear passenger side of the engine bay?  Or, is it on the fuse block??  I fixed the micro switch in the dash last year and that's still OK.  I had the pressure sensor replace last year.  It was working last week.  I had left the controls set on A/C and was turning it on and off with the fan switch.  The blower still works at all 3 speeds.  If I put a jumper to the compressor, the car starts blowing KKOOOLLLDD right away.  The guy at the A/C shop said his bet is on the relay.  Now I just need to find it.

Thanks!!

[JayRamb]

There is a lead wire from the compressor hanging down from the back side of the compressor to a loom of wires on the pass. side. Pull that apart, put a little die-letric grease on it. I had to do that to mine and my compressor and a/c has kicked on ever since. Worth a try!

[Bird-o-Prey]

Well, I have not been able to find any relays for the AC.  After looking at the AC wiring diagram, I don't think there is one.  Not externally, anyway.  Is it possible that the AC thermostat has a relay in it?  One of the things I notice is the lack of the clicking sound coming from behind the glovebox.  The clicking sound is very reminiscent of an electrical switch going on and off.  It also coincides with the cycling of the AC pump.  So, logically, it must be a relay type switch set up with the thermostat.  Does anyone have an extra AC thermostat they would be willing to part with

Cheers

[Bird-o-Prey]

Anyone...anyone...Bueller...Bueller...Bueller........

[Bird-o-Prey]

WOW.  No one with an AMC thermostat for the AC??  I have the car inside apart right now.  I'm trying to trace the wiring for the AC.  I cannot find a separate relay for the AC system inside the car.  The fuse block has a 25amp fuse for the blower motor and AC clutch, but no separate relays that I can find.  Is there ANYONE with some info on this??  Does anyone have an AC thermostat for sale?? 

Cheers

[AMC of Houston]

Well, the only switches I know of that would affect compressor operation are the low pressure cutout (which may or may not be on your car), and the micro switch on the A/C control head (keeps the comp from coming on unless on A/C or defrost settings).    There are no A/C "relays" on the Eagle.     Really need to know what year/model of Eagle you have, and whether a factory A/C or dealer-installed American Air setup (which will also look "factory").

[rollguy]

Try bypassing the low pressure cutout switch and see if the compressor comes on.   If there are only two switches, one of them is bad, or no power to the switches (bad fuse?).

[Jurjen]

There is no relay.
Note that the blower has to be running, for the A/C to work.
There is a thermostat behind the glove compartment, make a jumper for the wires going to it.
And as Rollguy says: try jumping the pressure cut-out, it is on the drivers side of the radiator.

[amcinstaller]

its likely the pressure switch, and id look somewhere around the drier for it (that can lookin thing on the hard lines for the ac), under the hood.

[JayRamb]

I was trying to fill my 84 Eagle with a conversion R134A in hopes of the compressor coming on. My system is out of freon. It wouldn't accept any freon from the valve of the can. I don't know where to begin!?!!  I have no idea of know if the compressor clutch is bad or where to start. Any one!?!

[mudkicker715]

Did you open the valve?

[JayRamb]

I know nothing about A/C. I probably didn't open the valve. I just turned on the MAX A/C.

[mudkicker715]

To the front ofthe fill are is a cap screw underneath is somthing like a 1/4" screw. Turn it out. It should than charge.

[JayRamb]

To the front ofthe fill are is a cap screw underneath is somthing like a 1/4" screw. Turn it out. It should than charge.

AH! WILL DO!!!!

[mudkicker715]

Also it should be square.