unexplained loss of a/c freon charge after 2 weeks
Asked by standishauto Jul 09, 2013 at 01:18 PM about the 2005 Mercury Grand Marquis GS
Question type: Maintenance & Repair
charge system add oil with dye pressures good nice and cold comes back 2 weeks later system empty no trace of dye anywhere has new evaporator compressor and reciever/dryer help???
5 Answers
migration_judge_roy answered 10 years ago
you have a leak...use a product like SNOOP to apply to the entire breadth of the piping...at the joints to find your leaker~
Take a real good look at the front of compressor, the pulley and clutch with a bright light. A leaking compressor shaft seal can sling the oil and dye from the shaft seal without leaving much evidence.
Shaft seals aren't too bad to replace if you have the tools and the time and the shaft and compressor are ok. Recover any R134a that's left, remove the compressor, remove the clutch and the pulley (field too if you feel the need), R&R the seal (use plenty of refrigerant oil or other suitable lubricant), evacuate and recharge the system Otherwise - yeah - not much fun to replace the compressor and orifice tube and flush the system (if the compressor goes to crap that is).
I put freon in a compressor and everything come on it runs good but it's just not holding the freon
