2000 Volvo S70 Intermittent A/C issue

2000 VOLVO S70
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OLDGUY28613
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Air Conditioning problem
2000 Volvo S70 Front Wheel Drive Automatic 154500 miles
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My A/C has an intermittent fault -- the fan keeps blowing, but the cooling stops. I've not detected a certain cause, but it happens in traffic, on the interstate, and sometimes if I start or stop quickly or gun it to accelerate. My mechanic says the coolant is to spec, but it didn't happen during the day he had it.

Turning off the A/C switch on the dash for a few minutes will -sometimes- cause the cooling to start again when I re-engage it.

Any ideas? This is one of the 2000 S70s that has continual electrical shorting issues -- tail lamps going out, etc. Could that be involved?
May 31, 2008 at 7:37 PM
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MASTERTECHTIM
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does the cooling fan run when the ac is on? were the pressure readings good?
May 31, 2008 at 7:45 PM
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OLDGUY28613
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Fan runs (on auto and on manual). The pressures were normal, according to the mech.
May 31, 2008 at 8:06 PM
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MASTERTECHTIM
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he is missing something. do you notice when its not working is the ac compressor coming on? possible loose connection near ac compressor
May 31, 2008 at 8:11 PM
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OLDGUY28613
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I'll check that this week -- I'm on the road, won't be able to get it back to him until Thursday....
May 31, 2008 at 8:19 PM