[Jeff Hail]

Originally Posted by fastfredracing

Never seen this before . New ac compressor, condensor, evap core, expansion valve, and dessicant. System flushed, no clogs found. Pulled vacuum for a long time.
Started to fill system as normal, but as soon as the compressor cycles on, both the high, and the low side pressures decrease , equally .
At near full charge, both high and low are going almost down to 35.. Not an ac expert, but have been at this for a long time and never have I seen anything behave like this .
Did I get a bum compressor, or expansion valve ?
Honda CRV. The old comperssor ate istself and sent metal through everything . It had a full charge still when it came in.
Any ideas??

Check the high pressure lines (skinny ones) leading to the bottom of the condensor. If they are cold and getting frost or dripping water drops stop, Evacuate the system and crack the lines and see if any debris is plugging them up. Next would E/V is plugged. Hondas do not have orifice tubes so dont knock yourself out trying to find it.