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'83 SC A/C problem
It is ouir first 80 plus degree day in Chi-town and I turned on my A/C....Nothin. Ran fine a few weeks ago when I uncovered the car for spring. Had refrigerant topped last summer.
No click from compessor clutch No blower at all checked fuse-OK Checked voltage at A/C evaporator blower motor-voltage .46(?) How do you check voltage at compressor clutch? Is the compressor clutch slaved to the evaporator blower motor so the compressor does not engage? I suspect the evaporator blower motor. I assume the refrigerant connections must be opened- ergo let a trained pro take care of it, right? Any other possibilities?
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PCA National, BMW Club, SCCA HPDE Instructor. MSF Level 2 '23 BMW 540 iX (wife's driver) '14 Cayenne Diesel DD and tow vehicle '16 GT4 '22 911 Date night vehicle |
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05-08-2005, 03:16 PM
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Join Date: Jul 2002
Location: Southern California
Posts: 5,067
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Is the system still stock? If not, then it might have a high/low pressure cut-off switch. If it does, and if you have a leak in your system, the switch will prevent juice from getting to the clutch.
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1984 Targa |
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05-08-2005, 09:21 PM
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Hi Glenn,
Did you also check the relay in the front? .Steven
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1980 911SC |
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05-08-2005, 11:20 PM
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Mine does the same thing when the freon is low.
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05-09-2005, 05:10 AM
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Check the relay in the smuggler box, for a cheap fix go to rack shack and purchase an automotive relay. For a more expensive fix order a new relay from Porsche or our host. Unlrss they have NOS (new old stock) the new Porsche packaged relays are made in CHINA.
Yes it was a nice weekend in Chi-town. Did some quick maintenance on my 82SC Targa. Drain and replaced the oil, and went for a drive with the A/C on. Last edited by ruf-porsche; 05-09-2005 at 05:37 AM.. |
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05-09-2005, 05:35 AM
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1983 Porsche 911SC 3.0
911T
2000 
Cayman S
GT4
