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The relief valve did what it is supposed to do, release the excessive pressure from the high side of the system. If it is not still leaking, it is OK. (Spray some soap water on it and look for bubbles) High pressures may eventually destroy the compressor if you run it a long time, but if it's working, and not making "Rod Knock" noises, it's probably OK.


Very good info here.. If I my add ... A lot of time if its over filled the 'cooled' line will freeze ,frost, up at the firewall if over filled on a run with the A/C working hard ...