| Dash Air Conditioner No Cool [message #253867] |
Mon, 30 June 2014 17:30  |
rjw
Messages: 697
Registered: September 2005
Karma:
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Senior Member |
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I've noticed that my dash air (converted to duracool) is not blowing cool air.
First thought was to top off the refrigerant. I connected my gauge set, turned on the engine and AC and noticed the compressor was not on. I jumped the two leads on the pressure switch and got the compressor to come on. I started to add duracool, but noticed that the low side pressure was 60 and the high side was less than 50 with the compressor turning. I think low side should be about 20-25 and high side on a hot day should be something like 150 - 200 psi range. I'm thinking that I have a bad compressor. It's probably the original. I replaced the clutch 4-5 years ago. Or maybe the expansion valve is clogged. In the event I have to change out the compressor and receiver dryer I do have a vacuum pump and a large supply of refrigerant.
Any ideas on how to confirm a bad compressor?
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com
Roller Cam 455, TBI+EBL, 3.42 FD, 4 Bag, Macerator, Lenzi (brakes, vacuum system, front end stuff), Manny Tranny, vacuum step, Tankless + OEM water heaters.
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