Where is the freon port for a 1994 Chevy S-10 with a 4.3 engine?

The freon port for a 1994 Chevy S-10 with a 4.3L engine is located on the passenger side of the engine bay. The low-pressure service port is typically near the accumulator, while the high-pressure port is closer to the compressor. Make sure to identify the ports correctly, as they are different sizes to prevent accidental connections. Always ensure the system is off before attempting to service the AC system.