Engine Size: 3.5
Refrigerant Type: R134a
Ambient Temp: 82
Pressure Low: 88
Pressure High: 87
Country of Origin: United States
Working on daughter and son in laws van. They bought it used, brought it over and said ac was not working. Looked under hood, best had been rerouted, compressor seized. Installed new compressor, dryer, pulled vacuum. Static pressures even on gauges. My problem is I have never worked on a system like this where there is an evaporator in the rear. I am not getting any power to the compressor with the ac on max. Is there another pressure switch besides the one on the dryer? I am only getting to work on this thing a little bit at a time when the son in law is not at work. The light on the dash for ac is on, and I am going to trace the wire from the compressor back to the relay this evening if he can bring it by for a start. Any help is highly appreciated. Jim.
Edited: Thu July 11, 2013 at 12:26 PM by Jim Davis
I did a Kia sedonna once- the coil was dead on th ecompressor due to thermal fuse on coil open.....just sayin'
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......
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