Engine Size: 2.2 ltr
Refrigerant Type: r134
Ambient Temp: 90
Country of Origin: United States
My compressor leaked so picked up a newly rebuilt one from junk yard. I notice this one a 95 year s10 has three power plugs on it instead of the one 12v. it is a round style 12v plug. what are those two for? do I need them. Any one know which relay out of the three on firewall is the ac relay? thanks. Is there anyway around not buying a new accumulater? can i put the old one if the oven a while to dry it out.
Edited: Thu May 22, 2014 at 8:12 AM by Wavecrazed
You obiviously picked up the wrong model for your application...better double check- if it doesn't match your OEM compressor- it is wrong. '95 may have had the HPCO switch in rear of compressor- while in '96 the transducer was installed on the high side pipe to handle the HPCOs. Does yours have a 3 wire transducer on liquid line? if so, you can ignore the HPCO switch in rear of compressor, and just plug in the coil connector.
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......
thanks I have a high pressure cut out two wire on the dryer line
Edited: Thu May 22, 2014 at 10:47 AM by Wavecrazed
The switch on the accumulator/drier is the low pressure cycling switch. GM Tech said to look for a transducer (3 wires) on the pipe between the condenser and the orifice tube. Pulling the OT at least to inspect it for debris is a good idea any time you have an old system empty.
Also a drier can't be regenerated. Heating it will just burn the oil and melt the plastic desiccant bag without freeing any water. It should be replaced with a new one.
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