06 V8 - AC Question

neworleans · Post by **neworleans** » 28 Jul 2019, 19:49

Hey guys,
I replaced the solenoid but it didn't make much difference

What is my next option? What you all think?

Post by **MoVolvos** » 28 Jul 2019, 23:29

-
This the correct pressure for 134A.
100°F (38°C) 50-55 psi / 345-379 kPa 315-325 psi / 2172-2241 kPa
http://rechargeac.com/how-to/ac-system-pressure-chart

Air Conditioning Circuit and Cycle Diagram
http://rechargeac.com/how-to/ac-system-pressure-chart

I thought with the high side pressure being too low you might have an overcharged system. Could also be the compressor itself being it's used?
https://www.buyautoparts.com/howto/ac-p ... adings.htm

AC Compressor Pressure
High 250 Low 50

Problem with the Compressor
Overcharged system or condenser issue

Remedy
Recharge system and inspect condenser for blockage

Post by **oragex** » 29 Jul 2019, 11:43

Maybe a stuck thermal expansion valve ? Who knows.. Meanwhile, this is what I do. Depending how you adjust it, it should blow colder air but at some point the venting may diminish - just turn it off 2 min then restart, or adjust the sensor to receive colder air