Automotive Air Conditioning Information Forum (Archives)

BG1 on Wed July 21, 2010 10:10 AM

Year: 1976
Make: Pontiac
Model: Firebird
Engine Size: 455
Refrigerant Type: r134a
Country of Origin: United States

On my 76 Pontiac Firebird that has the VIR in the system and was previously converted to R134A the low side pressure is to low and the high side is to high and I am getting ready to break it open so that I can replace a bad hose and I have a VIR that I adjusted the pressure on and I want to know what would have the pressures off like that?