A/C Pressure Port Essentials High vs Low Explained Simply

Learn the 4 main conditions that will cause your vehicle's A/C pressure to have low side pressure that is high and high side pressure that ... I rented the gauge set at Autozone and compressor off,I had approx. 95 psi on high and low side. Compressor on, low: 45-50 high: 198-200 and ... ... low pressure port with the A/C on ... I'm supposing that the compressor has to be engaged or the gauge will show high pressure. I found one port, I assume is the low pressure port about 1 foot from the left end of the radiator. ... I switched to A/C and the air got warmer ( ... the low pressure port is the one near the dryer. the high pressure is the port near the compressor. The reading of 20 psi on the low side and 210 psi on the high side would indicate a restriction somewhere in your ac system. Well the low pressure is in front of the manifold and the high is on the passenger side of the bay, plus the port sizes are different, so it's ... The low pressure port is where you charge. The high pressure port is readily accessible, and thankfully it's made "stupid-proof" so that you ... 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 ... The typical low pressure side PSI is between 20 and 50, so 70 is on the high side...although not likely dangerously high. If you're not getting ...