How are you recovering and charging your refrigerant?
Now with a robinair unit. I installed the new rcv from polar bear. This was an exact match for the bolt-on, pig tail style rcv that was installed on the car. Matched it up by the pics on their web page. The lady at Polar bear said that the pig-tail style is aftermarket, not oem! So it was replaced before i bought car at 180K. i also replaced the smaller ac fan....found it bad, read open circuit for ohms check.also the receiver dryer was replaced, but not expansion valve or compressor. Its a Sanden. But it was working with a discarge temp of 43 deg. It just would sometime take 30 minute (driving) before compressor would kick in and start cooling. So this second attempt with a second rcv from polar bear has had a similar result. On recharge only about 8 oz went in and the low side hit 100 psi while the high was 85. Blower on high, temp set to min, ac control switch on(and light illuminated. Car idling
. so i shut off recharge attempt at that point. Compressor is still not turning on. I checked car while idling with vcds. Auto hvac. Show no malfunctions, no codes. (Its the Climatic. Control, not climatronic). Neither engine fan or ac fan ever cycled. But engine heat stayed normal, and i understand the ac fan doesnt run until pressure hits 130, and it never went over 85. Seems like the compressor seals on rotary vanes are not destroyed....would not the low and high sides equalize pretty quick if compressor was shot?
Now i read on another thread that vcds can run a test on the ac hvac system and it teports back shut-down codes. This is what i need to do, but i didnt see this system test option in vcds. ( I just ran the test for all controllers.) Have to search for the manual on this diagnostic test.... or better yet a video primer.
I really dont want to spend the 250.00 or so for a reman compressor on this car since its got 280k miles on it! Thanks!