Mastering A/C Pressure High Pressure vs. Low Pressure Ports Simplified

Low pressure lines are the fatter ones, high side are the smaller lines. Don't have your year so I've no exact info. 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 ... ... LP & HP are Too High 3:34 Learn how to spot the issues in any AC climate system using r134A, just by reading the pressures of the system. #### The smaller fitting is the high pressure side. The larger fitting is low pressure side and is for charging. 250psi isn't too high. The a/c pressure switch turns off the compressor if the pressure is below 28psi or higher than 460psi. Low Refrigerant Levels · Faulty Compressor · Faulty Dryer · Something Is Blocking the Airflow · Your Car's AC System Is Overcharged · There Is ... I can't help you on which is the high or low side. Your a/c system ... My question is ...from the firewall is the low pressure port on the driver ... 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 ... 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...