WHEN I CHARGE MY A/C IT LAST ABOUT 1 WEEK. NEAR THE END I HAVE FOG COMING OUT OF THE VENTS. ALSO DURING THE COLD MONTHS THE DEFROSTERS JUST FOG UP THE WINDOWS.
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1994 Honda Accord Question: WONT HOLD A CHARGE
Answer #1patrick mannion from Greg Solow's Engine Room, May 28, 2010, 00:09Master
If you have a fog coming out the dash vents the evaporator behind the dash may have a leak. Air conditioning works on high pressure only a small leak quickly causes a drop in pressure. It is often hard to locate air conditioning refrigerant leaks. There is a refrigerant that has dye in it that helps locate a leak. After recharging the air conditioning with the dye if the system leaks it leaves a stain to help locate the source of the leak. An electronic "sniffer" can also be used to locate leaks, it acts like a geiger counter as you come closer to the area of the leak the "sniffer" beeps loudly.In either either case the system will need to be evacuated have the leak repaired and recharged with refrigerant and the proper lubricant or the system may soon loose its refrigerant charge again.