Join Date: Aug 1999
Location: Ontario, Canada
Ok Guys, I need some big time help here, I am tired of a good guess, tried that already,
On my 68 with factory AC, I switched over to 134 last year, it worked but not great, several times when I turned on the AC the belt would squeal big time, but then it started to work. This year I turn on the AC and I get nothing but warm air, After running 5 minutes, the low side hose from the compressor frosts up to the bleed tube on the POA valve, even the compressor is getting cold. The line from the expansion valve to the evaporator is not cold, the outlet of the evaporator is not cold.
So today I replaced the POA valve and the expansion valve with two brand new units, same thing,
Does the 68 system use a filter screen and where is it located??
The parts guy lists two expansion valves for the 68, With and without accessory air, I went with the Without accessory air.
It was a little smaller than the original but had two capilary tubes and fit proper.
High side pressure 120 - 140
Low side is reading high 90 plus
Thanks for the help.