Unlocking the Power Understanding A/C High vs. Low Pressure Ports

Typical pressures when running are 30-40 on the low and 200-250 on the high side. These pressures will change based on ambient temperature and ... If you have the proper amount of refrigerant in the system, you shouldn't need a high pressure switch. If the compressor stays running and the ... Any shop that does AC work can easily replace them and recharge the system for you. I'd have it evacuated, replace the valve, and then have the ... Normal AC Pressures Using R-134A · At a temperature of around 65°F (24°C), the low-side pressure typically ranges from 25 to 35 psi. At an ... LOW, LOW, Add Refrigerant. ; LOW, HIGH, Need service, possible blockage of the expansion valve or orifice tube. ; HIGH, LOW, Needs service, possibly faulty ... Start at the A/C compressor. It's attached to the front of the engine and powered by a belt and pulley. It can be at the top or down along the side of the ... The R-134a and R-1234yf pressure charts are for guidance when using A/C Pro® recharge products and gauges. ... Standard Low Side Pressure Range PSI, Standard High ... Low pressure is on the drier which is under the car by the front right wheel. You will have to remove the fender liner and maybe the wheel to ... Between 125 and 185psi on the high side 35psi to 55psi on the low side. Hold close manifold gauge to check for psi loss while running compressor a/c. the low pressure port is the one near the dryer. the high pressure is the port near the compressor.