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The low pressure valve to put in 134a on a 1994 Oldsmobile Cutlass Ciera V6 is on the passenger side of the engine compartment. It is about 12 inches below the alternator.
The 2000 Acura air conditioner low pressure service port can be found on the top of the air conditioner compressor. The low pressure service port will have a blue top.
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 side of the AC system. The charging hose will only fit on the low pressure side. It will not fit on the high side.
I think it is on the accumulator/receiver dryer.
25 to 36 on the low side 178 to 237 on the high side
find the low pressure line there will be two lines from the compressor the low pressure is the big one have a can of 134a and the hose to connect(wal-mart has this)start the car turn on the ac hook up the hose you may need more than one can of 134a
The 2001 Saturn L200 low pressure port can be found on the air conditioning compressor. The low pressure port will be closest to the front of the engine compartment.
Connect guage & 134a freon to low pressure on the evaporator add 1lb at a time
on the passenger side close to the firewall on the receiver dryer
From the passenger side of vehicle you should see a plastic cap on the A/C tubing. Look for an 'L' on it for the low pressure side. Unscrew this cap and use the fitting that comes with some 134a refills or purchase the proper epuipment. Follow instructions on the 134a can.
Could be you are low of R-134a. You can check the PSI level on the lowside with a gauge and if you are you can add R-134a. Any automotive store and some discount stores will have R-134a and gauges. Also you can check out the videos on the link below with show how to add R-134a to you car, and where to find the lowside port.