Question about 1997 Buick Skylark
The low preasure valve is located on the line coming off the ac compressor, if you look down from the front at the compressor and follow the top line out about 4 inches you will see it, good luck.
Posted on May 14, 2010
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Posted on Jan 02, 2017
You charge the a-c on the low side. If you are hooking up to check high side reading it is located to the right of the air cleaner and radiator. Good luck.
Posted on Jul 10, 2009
If the compressor will run turn it on and let it run for a few minutes, the line that gets cold is the low pressure side, this is usually the one closest to the firewall. The reason that they are 6 inches apart is that they are on opposite sides of the orfice tube, hence one is high pressure and one is low.
Posted on Apr 17, 2010
mcdevito75 here, The low side port of your A/C is located on one of the shiny metal lines comeing out of the firewall, they are attached to the evaporator under the dash, from the firewall carefully follow these silver lines till you reach the charge port. The port may be covered with a brass looking cap, un srew the capp and the port looks like the valve on the tire.
Posted on Jun 19, 2010
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