When you say too high, just how high is it and what is the high side pressure. It is not uncommon for the suction pressure(lowside) to get up to 80psi on a very hot day. You cannot determine what is wrong unless more information is provided. It could be that your system is overcharged, but without the high side pressure and the temp of the suction line it is hard to give the right answer.
It is on outlet of the High preasure side
It is on outlet of the High preasure side
Recharging should be on low-pressure side only
The high side will not hook up to the hose
it is the low pressure side
The "high side" of a car a/c typically reaches 300+ psi.
low side readings between 30 to 40psi and the high side between 200 to 250psi depending on the outside temperature…………….
High side, If you charge liquid on the low side it can cause the valves of the compressor to break.
What is the outdoor temp? If above 90 this is typical pressures. It sounds as if you have a dirty filter or some other restriction. Possibly a dirty condenser coil or evap coil. >>>>> This means it is HOT in the house, assuming R-22 is the refrigerant. A dirty filter would not cause this.
This is often caused by a blocked air conditioner drain. When the air conditioner develops condensation, it has nowhere to go but either the driver's or passenger's side floorboards. In addition, the floor can be rusted out which will cause water intake as well.
Possibly the high beam element for the passenger side is broken. There are two elements inside those lightbulbs, one for low beam, the other for high beam.
The low side ac port is the line to charge in. the low side has a different size connection from the high side to prevent using the wrong port.