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#1
06-15-2011, 07:13 PM
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A/C quandry
89 300TE a/c performs beautifully for 15 - 20 minutes then the compressor shuts off, will not restart until I turn the motor off and then back on, low side pressure is between 35-40psi. I have replaced the pressure switch and the fan pressure switch. Could it be the speed sensor on the back of the compressor, or is my compressor on its last leg?????????
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'05 Ford Escape 100,000 miles '87 560SL 92000 miles '89 300TE 199,000 miles '02 Audi TT 100,000 miles '00 Ford Excursion V-10 121000 miles '92 Mercury Capri 100000 miles '02 BMW 325XI 60000 miles '92 230CE 160000 '87 BMW 535SI 160,000 miles '93 Rinker Captiva 209 5 Kids 2 Dogs 1 Wife 
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#3
06-16-2011, 08:19 PM
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a/c
new belt and tension seems to be fine!!!
Help what can it be??????????????
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'05 Ford Escape 100,000 miles '87 560SL 92000 miles '89 300TE 199,000 miles '02 Audi TT 100,000 miles '00 Ford Excursion V-10 121000 miles '92 Mercury Capri 100000 miles '02 BMW 325XI 60000 miles '92 230CE 160000 '87 BMW 535SI 160,000 miles '93 Rinker Captiva 209 5 Kids 2 Dogs 1 Wife
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#4
06-19-2011, 09:52 PM
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a/c
any ideas out there???????????????
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'05 Ford Escape 100,000 miles '87 560SL 92000 miles '89 300TE 199,000 miles '02 Audi TT 100,000 miles '00 Ford Excursion V-10 121000 miles '92 Mercury Capri 100000 miles '02 BMW 325XI 60000 miles '92 230CE 160000 '87 BMW 535SI 160,000 miles '93 Rinker Captiva 209 5 Kids 2 Dogs 1 Wife
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#5
06-20-2011, 10:49 AM
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Sure, couple of ideas.
Check the compressor clutch air gap using feeler guages (like for gapping spark plugs or setting valve clearance). The gap should be ~0.50mm. Experience says that once it reaches ~0.80mm the cluch will slip enough on engagement to trigger to compressor cutout circuit. The gap can be adjusted by pulling the clutch plate and removing/changing spacers. Clean the compressor clutch. Use simple green or carb cleaner, or whatever. Goal is to make sure no oil or grease is on the friction surface. This can sometimes reduce slipping on engagement enough to keep things running. Also, use the search feature of the board to dig up old threads discussing this kind of problem - there are many. There are some other possible causes, but the above two are the easiest to check.
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Linear Mode
