A/C Compressor Cycles Excessively
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Joined: Feb 2001
Posts: 2
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A/C Compressor Cycles Excessively
I have a '94 Ranger. When I engage the A/C button on the A/C control panel, my compressor only engages for only 3 or 4 seconds at 10-12 second intervals. So, in other words, my compressor is cycling too much and the pressure cannot build. I checked pressure, and it seems to be fine, but it's hard to check when the compressor won't stay on. I tried to ad some refrigerant, but the compressor needs to be on full blast for this to work.
I have read a lot online, and have gotten alot of idea on what it might be. Below is a list of what I have done so far, with no resolve...
1) Replaced the WOT (Wide Open Throttle) relay.
2) Charged the A/C system with 134a refigerant.
3) Checked the pressure (Hi and low-end).
4) Replaced the compressor and clutch.
I have read about the possibility of a faulty clutch cycling switch. Do I have to discharge the system in order to replace this? Where is it located? The part is only $13 and I thought it wouldn't hurt to try.
Any other ideas on what might make it cycle so erratically.
I have read a lot online, and have gotten alot of idea on what it might be. Below is a list of what I have done so far, with no resolve...
1) Replaced the WOT (Wide Open Throttle) relay.
2) Charged the A/C system with 134a refigerant.
3) Checked the pressure (Hi and low-end).
4) Replaced the compressor and clutch.
I have read about the possibility of a faulty clutch cycling switch. Do I have to discharge the system in order to replace this? Where is it located? The part is only $13 and I thought it wouldn't hurt to try.
Any other ideas on what might make it cycle so erratically.
Posting Guru
Joined: Feb 2000
Posts: 1,100
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From: Wichita USA
A/C Compressor Cycles Excessively
No it is not necessary to discharge the system to change the switch. It is located on the low side hose near or on the accumlator. A two wire switch. You can check it by jumpering the connection temporarily. If it stays ingaged try changing it.
2000 XLT Flare Supercab Sport 5.4-Auto-355LS-Tow pkg-Bedrug-Xtang Tonneau
2000 XLT Flare Supercab Sport 5.4-Auto-355LS-Tow pkg-Bedrug-Xtang Tonneau
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