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Another A/C Question
Ok first let me start off by calling myself a moron. I am trying to get my a/c up and running since it is almost 100 degrees here in middle Georgia already. Over the weekend I took my car over to a friend to check/charge my system. The car was already converted to 134A by a previous owner. Well I left the car in his capable hands while I went and did some family stuff. I come back in two hours to help and there is refrigerant spraying out of the low pressure switch on the receiver dryer. I asked him what the hell?? Long and short of it he does not know what the hell he is doing. So we agreed he will never touch my car again.
I got the car home and checked for any leaks or blown out hoses I did not see any dye coming from any of the fittings. Jumped the a/c compressor it kicked on jumped the aux fan it kicked on. I did notice a drip of oil on the passenger side floor mat. I took down the plastic cover and the insulation was covered in oil. I am assuming I need to replace the expansion valve at the very least. Now my plan is to replace the expansion valve and vacuum the system to check for any additional leaks.
What else should I be looking to check or replace? Also is there supposed to be some sort of pressure relief built into the low pressure switch? At first I thought it was toast but inspecting it closer there is a small plastic valve in between the prongs which is where the refrigerant was spraying out of.
Car is an 83 300d
Thanks in advance
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1983 300D
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06-01-2011, 11:45 AM
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