Quote:
Originally Posted by paulofto
It sounds to me you have possibly one of 2 issues. Or maybe both. 1) The expansion valve might not be releasing enough refrigerant into the evaporator when at low RPM due to low pressure. 2) you are low on refrigerant.
The expansion valve can 'freeze' in a closed, open or partially open position. I'd get an A/C guy to look at it. The valve is about $30 CDN and refrigerant about $60 CDN. That is what it cost me to fix my similar issue a couple of years ago.
A far more expensive problem may be the compressor itself or the compressor clutch not operating properly.
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Thanks! Is the expansion valve replacement something I can DIY without too many specialized tools? If I'm low on refrigerant, does that indicate a leak? I wonder if it would make sense to try one of those pressurized cans of refrigerant to see if that helps. Can that hurt? Thanks again!
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