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Q: Evaporator on 1999 Volvo S70

Enthusiast 01be16a5a93688912f14755221fb15211b518d9a788cf01b455e03cc1bd585ac
Volvo looked at AC and said it appears no leaks but freon was 50% off. If the AC is still blowing cool but not cold air, is this the evaporator?
(1) Answer
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For the air conditioning to have lost 50% of its charge the system must have a leak. The evaporator is the most difficult to find the leak in because it is hidden behind the dash. There is a refrigerant available that has a florescent dye in it that leaves dye at the point of the leak making it easier to find the source of the leak if there is actually a leak somewhere.