Mastering A/C A Comprehensive Guide to High vs. Low Pressure Ports

you have two sizes of ac line one large one small the smaller line is the high side the pressure switch for the low side used to be at the ... ... 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. #### -Do not allow the low-pressure gauge to exceed 3 bar, otherwise liquid refrigerant can get onto the suction side of the compressor and destroy ... Locate the Low-Side Service Port ... This port is typically found on the line connecting the accumulator and compressor. The high side fitting is located between ... So I found out my AC was BADLY leaking out of the high pressure port and the O-ring for the low pressure switch was in bad shape when I pulled ... 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 reading of 20 psi on the low side and 210 psi on the high side would indicate a restriction somewhere in your ac system. Very high on the high pressure side and low on the low pressure side. First check to see if the condenser fan is running at full speed. If ... Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. Preview image for a collapsed post. ... From the FSM: ... On the 1.4L engine, the high side service port is located on the A/C suction line in back ...