Cool and Collected Automotive AC Pressure Chart for Maximum Comfort

What are the proper ac pressure readings be on a 2002 ford ... 14 years Automotive experience. 32,709 Satisfied Customers. 2007 Chrysler ... An A/C System that is working properly should have 150 PSI on the high side and 30 PSI on the low side. I am using a manifold to do all the readings. Anyhow, anyone out there with info about how much psi the ac would need? I have a 2003 Ford Focus ... So if I'm reading the manual correctly, the correct procedure to measure refrigerant pressure is to set AC to max cold, recirc, max fan, ... Before the vehicle is started, the static system pressure can be read. ... The PCM gets inputs from the HVAC switch, and from the AC pressure ... Thanks but thats not vehicle specific but just a general guideline. ... AC was blowing cold air, I would think that would be good enough. If ... ... AC components under the hood, not outside in front of the vehicle. 3. Compare the pressure readings to the pressure-temperature chart below. Shut the car off for 10 minutes then started AC compressor kicked on and got cold but gauge reading was off the chart. He recommended replacing ... Pressure/Temperature Chart ; -48, 1.6, 6 ; -44, 1.1, 8.3 ; -40, 3.3, 10.8 ; -36, 5.6, 13.4 ... R134a Pressure Gauge Chart ; 90°, 50-55 psi, 250-275 psi ; 85°, 50-55 psi, 220-250 psi ; 80°, 45-50 psi, 175-220 psi ; 75°, 40-45 psi, 150-175 psi ; 70°, 35-40 psi ...