The pressure on the LP side is running about 18-22 psi...A/C blows cool, not cold...lots of cycling from the compressor. I cannot get any freon to flow into the system. I am using an ID quick cool gun and a fresh tank of freon. The gun has some sort of check valve to keep gas from spraying out if you pull the trigger without it being hooked up. Did Volvo buid a check valve into the LP side to force it to be filled from the HP side, or is my gun screwed up (first time I have used it)?
Any help appeciated..
-Dave
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