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were is the low pressure side ac port located on 2002 lincoln navigator
It's located on the A/C compressor.
the low side port is the smallest of the two, just find the ac valves and which ever one is the smallest is the low side. on the 134a it is the opposite way if you converted. The High Side(High Pressure Side) is always Smaller and the Low Side(Low Pressure Side) is always Bigger in diameter, Always.
The low pressure connection for your 1993 Jeep Cherokee air conditioning system is located on the top of the air conditioning compressor. There is a low pressure connection and a high pressure connection, both should be labeled.
It is located on the reciever\dryer by the passenger side firewall.
The symptoms of a bad ac compressor would be a grinding or rattleing sound or a low pressure reading on the high side with a normal pressure reading on the low side. The low pressure will be about 30 to 40 pounds. The high side should read around 150 to 200.
on the right side hose. there is two on the compresser and you need the right one.
Follow the larger hose from the compressor--maybe by the drier at the passenger side firewall
High side and low side refer to the pressure in the ac system. Ie The high side is the high pressure line and low side is the low pressure line.
i have been told it is on the a/c compressor itself,which is on the lower drivers side of the engine.
on the big silver cannister( dryer ) under the hood on the passenger side firewall
Always to the low pressure side. The low pressure side fitting is normally near the dryer ( large silver canister).