DIY A/C Maintenance Unlocking the Secrets of High and 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 ... The low side port, or the low-pressure service port, is important because it's the point where you connect to recharge the AC refrigerant. Its location varies ... 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. Typically the low pressure port is located close to the AC accumulator and not the compressor although it is possible as this is a conversion. 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 ... Both the low and high side ports are on the compressor itself rather than on the suction and pressure hoses as is more typical of modern cars. The high and low side pressure equalize when the A/C system is shut of and sat or when the compressor isnt working period. My best guess would be the Valve ... The low pressure side is the return line between the cabin evap and the gas compressor upfront near the drive belt. It is in the discharge line. Wear safety goggles and gloves when servicing high pressure components. If you find low pressures, you likely have a leak. Turned on wife's A/C in her 02 golf, and it blows out normal air - no cooling feeling at all. I was able to see that the clutch is at least spinning when...