Where is the ac low port on a 2001 Chevy Impala?

The AC low port on a 2001 Chevy Impala is located on the accumulator, which is typically found near the passenger side of the engine bay. It is a smaller port compared to the high side and is usually covered with a blue or black cap. To service the AC system, ensure the engine is off and the system is not under pressure before connecting any tools.