Stalling Compressor a Symptom of Failing Expansion Valve?
09-04-2007, 02:16 AM
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2006 S65
Stalling Compressor a Symptom of Failing Expansion Valve?
My 1979 240D has 94,000 miles on it. The air conditioner (York compressor and r-12) cools quite well while moving. However at idle, the belt slips over the compressor pulley and squeals loudly. I had the belt replaced and correctly tensioned, but the problem persists. The shop believes this is due to a failing expansion valve, and wants $300 to replace it and recharge the system. Could a bad expansion valve cause this problem?
02-19-2008, 08:48 PM
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2008 Black Out C350 Saks Edition / 87 VW GTI
My 1979 240D has 94,000 miles on it. The air conditioner (York compressor and r-12) cools quite well while moving. However at idle, the belt slips over the compressor pulley and squeals loudly. I had the belt replaced and correctly tensioned, but the problem persists. The shop believes this is due to a failing expansion valve, and wants $300 to replace it and recharge the system. Could a bad expansion valve cause this problem?
Take a look at the a/c clutch if you see a big gap and if smells like if is burning.
Or take a look at the pulleys may be worm out
