1999 Volvo S70 Q&A
1999 Volvo S70 Question: Air conditioning
If the A/C lights are flashing when you turn on the vehicle then you have a fault recorded in the climate control module that needs to be diagnosed. If the lights aren't flashing, I would have the refrigerant system checked, it may be low. I don't quite understand the last part of your question: "Also the recirculation button and the AC button both turn on for approx. 20 seconds before turning off. What could be wrong?" can you elaborate? - Bret Bodas
...http://www.w3.org/TR/REC-html40/loose.dtd"> The AC evaporator is prone to leaking, causing the air conditioning system to lose refrigerant and stop blowing cold air.
A refrigerant leak may develop from the AC evaporator causing the AC to blow warm air. Verifying failure of this component is difficult. A good shop will use leak detection dye to verify a fail...
Even when the defroster is on the windows constantly fog up until I drive with the windows down...
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?
ii thinking...maf sensor, or vacuum leak?