Automotive Air Conditioning Information Forum

How much mileage has this vehicle logged?

212,000 miles

If your recollection is correct, and with a low side of 40-50 PSI, the evaporator temperature will be at least 45°F and even higher, much too warm for any measurable cooling. The high side at around 190 PSI is about right for a 75-80°F ...

Ok, got back out to the vehicle. With the gauges unhooked and all valves wide open the low side reads at about +3-4psi. Put the gauges back on.the vehicle and checked the pressures.

Vehicle off, not ran at all today 78 both sides. 72 degrees F.

When I started the car I got a slightly different ...

A stuck or sticky expansion valve? Or the dryer has has come apart and the absorption pellets have clogged up the system?

I dont have the car in front of me at the moment. But immediately before the issue they were within range while running, AC on. What I recall is like 40-50 low side and around 190ish high side. 75-80 degrees out.

Vehicle is an 09 grand cherokee. With a kind of unknown AC past. The owner knows ...

AC blows cold at start up, after running for about 5 minutes the compressor seems to be slipping on the clutch.

I ordered a smart VOV orifice tube and installed it with a system rebuild on a 93 Cadillac Fleetwood. After doing a little reading it appears that they sent me the extreme heat version intended for use in desert environments. I am in the muggy Ohio valley. The system seems to cycle more than normal ...