Buick Repair Questions? Ask a Mechanic for Answers ASAP
The low side service port is located on the suction line. It's towards the top of the engine just above the A/C Compressor. It is the smaller of the 2 service ports. For an image location view, click here: https://www.dropbox.com/s/0w90uhlqot8db53/bui-low.jpg?dl=0
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