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The 2001 Chevrolet Impala low side service port can be found on the top of the air conditioner compressor. The port will be labeled as the low pressure port.
The 2002 Chevy Cavalier low side service port can be found on the top of the air conditioner compressor. The low side service port will be labeled as the low pressure port.
The AC low side service port on a 1999 Chevy Astro van is located next to the firewall. It is the port that is closest to the evaporator.
The smaller port is the low side.
The recharge port is on the larger AC pipe
On the accumulator.
The low side service port can be found on top of the air conditioner compressor. The low side service port will have a blue top.
To the fuel tank
On the coolant line behind the engine, it is a small valve, the larger one is the high side service port, before it goes into the cabin. If that was confusing, start at the engine block, look for a black line behind it that runs from the A/C to inside the car with two black capped valves, use the smaller one.
Low side service port is against the firewall just underneath the alternator. It has a Blue cap on it.
The low pressure service port on your Chevrolet K 1500 air conditioning compressor will be the one closest to the front of the engine compartment. The low pressure service port should be labeled.
The service port is by the Firewall, just below the Passenger's Side Windshield Wiper Arm Shaft.....