Thanks for the response. There's 2 valves. One by the firewall. One by the radiator.
The firewall valve has a psi of 100...Im assuming that's the high pressure valve and I should avoid it.
The valve near the radiator I cannot check the pressure because the pressure gauge will not fit on it. Perhaps Im looking at the wrong area?
Does anyone know where I can find an online A/C diagram for a 1997 V6 mustang?
Anyone know a trustworthy mustang mechanic in midlothian, VA?
Thanks again for your advice!
