97 Ranger A/C problems

[bigdan002001]

Okay, I recently purchased this ranger and have gone thru numerous problems and trying to fix things as they come. I just fixed the major vacuum leak from the intake to vacuum ball canister on the inner fender with a new vacuum line. Now the controls work inside like they should...it changes from defrost to vents to floor all as it should. My blower resister needs replaced cause I only have high speed on my blower fan...gonna fix that tonight. But my a/c compressor never kicks on at all. So I tested the low pressure port and I am getting power there, but no power is coming to the high pressure switch or the compressor to kick it on. So I unplugged the compressor and ran a hot and ground wires from my battery over to the terminals and off she went...let if run for like 15 min. but to my dismay...still warm air coming out the vents...so I can only assume that it is either empty of coolant or someone has overfilled it? Which leads me to my next question...I took the cap off the low pressure side switch (where you would add the new refrigerant) and there was a lot of green gue which I again can assume is R-134A coolant? Why would coolant be leaking back up thru the low pressure port after I ran the compressor...never showed up before when compressor wasn't running? Any help would be appreciated.

Thanks,
BigDan

 

[bigdan002001]

Well after fighting with getting that resistor unplugged, now most of the prongs were rusted off up inside of the wiring harness plug, so I gotta go to ford and pick up a replacement harness. But I replaced the low pressure switch and also replaced the WOT relay last night, and still it doesn't kick on at all. So I found my A/C Recharge cable which has a pressure gauge attached to it and I plugged it into the low pressure port and it only had about 15 lbs of pressure. So I left it plugged in and went over and powered up the compressor and watched the gauge and it fell all the way to 0. And when I released the power wires and shut off the compressor the pressure jumped up to like 25 lbs. I kept cycling the compressor and each time I would turn it on it would fall all the way to 0 lbs and kick back up to about 25 lbs off. So does this mean the compressor won't kick on because there isn't enough R-134a in the system? Any help would be appreciated here....thanks!

BigDan

 

[press 1 for english]

Sounds like you are out of gas.

 

[Little Red]

+1 and the green goo is probably stop leak. I was left over from putting it in the suction port.

 

[press 1 for english]

+1 and the green goo is probably stop leak. I was left over from putting it in the suction port.

The green dye is for spotting leaks. No such thing as stop leak for A/C units.