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on the large ref line (suction line)
Low pressure line - larger line from A/C compressor
Low pressure line Larger line running from compressor
low pressure line. these are the larger of the two lines and have larger connectors
A leak, either the pressure line or somewhere in the compressor.
Low pressure line\ Larger hose from the compressor
Freon is added through the ac low pressure port. The port is located on the aluminum pipe on the ac line.
The LOW pressure port. The coupling will be compatible with the coupling on the re-charging can. Do NOT try to attach it to the HIGH pressure line!
Low pressure line from the compressor (Larger hose)
The low pressure freon port is located on the low pressure line that is attach to the ac compressor (driver side). Safely jack up the car, look underneath at the compressor, then located the low pressure line (larger diameter). There you'll find the port underneath a cap.
Freon is put in the "Low" pressure side of the AC system.How to find it:When you open your hood, you'll see an AC line with an input line on it. The one closest to the front of the car is a High pressure side- DO NOT use this one.Instead go to the right side of the car and look for another AC line with another 'service port' coming from the passenger side of the car. Unscrew it, and attach your Freon line here.
It is below the HIGH pressure line. Usually smaller than the other.