misterbond10
New member
My A/C Problems:
The vehicle was purchased used last year with 110,000 miles
The A/C compressor clutch at first would not engage. Hooked up a manifold gauge set, and it read about 30 low side/0 high side
First thing I did was remove and reinstall all the fuses under the seat, no change
Next I cut through the insulation to the compressor clutch wire in the engine bay to see if it was getting 12v. For some reason that is beyond me, this is when the compressor clutch finally started engaging.
The condenser fan will NOT come on unless the A/C transducer on the drier is unplugged. After about 3 seconds of unplugging the transducer aka pressure sensor, the A/C clutch disengages
I vacuumed the system for an hour, it seemed to hold the vacuum after leaving it sit for an hour. I proceeded to recharge the system with 1.9lbs of R134a
During testing with the A/C running, I received a low temp of 58 out of the Left drivers vent, and 70 out of the center vent. Outside temp was about 70 degrees. Max cold, Bi-level vents selected, maximum blower speed.
Manifold gauge readings after the final tank of R134 went in are as follows:
Low Side High Side
-----------------------------------
40 135
38 155
39 165
40 175
40 210
One thing to note is the High Side never gets above 210 no matter how long it sits with the condenser fan NOT running. If I get the condensor fan to run (which means the A/C will NOT be running) it will cool it down to 135 on the high side, same thing happens if I spray water on the condensor while the A/C is running.
Currently the ATC is plugged in but accessable for diagnostics (I removed the trim panels around it)
Yes the cabin filter has been changed
Fluorescent dye was visable around the pressure port connections on the A/C lines, but this could be dyed from the factory?
Any help would be greatly appreciated. Thank you.
The vehicle was purchased used last year with 110,000 miles
The A/C compressor clutch at first would not engage. Hooked up a manifold gauge set, and it read about 30 low side/0 high side
First thing I did was remove and reinstall all the fuses under the seat, no change
Next I cut through the insulation to the compressor clutch wire in the engine bay to see if it was getting 12v. For some reason that is beyond me, this is when the compressor clutch finally started engaging.
The condenser fan will NOT come on unless the A/C transducer on the drier is unplugged. After about 3 seconds of unplugging the transducer aka pressure sensor, the A/C clutch disengages
I vacuumed the system for an hour, it seemed to hold the vacuum after leaving it sit for an hour. I proceeded to recharge the system with 1.9lbs of R134a
During testing with the A/C running, I received a low temp of 58 out of the Left drivers vent, and 70 out of the center vent. Outside temp was about 70 degrees. Max cold, Bi-level vents selected, maximum blower speed.
Manifold gauge readings after the final tank of R134 went in are as follows:
Low Side High Side
-----------------------------------
40 135
38 155
39 165
40 175
40 210
One thing to note is the High Side never gets above 210 no matter how long it sits with the condenser fan NOT running. If I get the condensor fan to run (which means the A/C will NOT be running) it will cool it down to 135 on the high side, same thing happens if I spray water on the condensor while the A/C is running.
Currently the ATC is plugged in but accessable for diagnostics (I removed the trim panels around it)
Yes the cabin filter has been changed
Fluorescent dye was visable around the pressure port connections on the A/C lines, but this could be dyed from the factory?
Any help would be greatly appreciated. Thank you.