The exact location of the low-pressure AC access fitting on a 2002 Chevy pickup depends on the specific model (1500, 2500, 3500) and the configuration of the AC system. However, it's almost always located
on the lower side of the compressor, usually near the
driver's side of the engine compartment. It's typically a smaller fitting than the high-pressure port.
To be certain, I strongly recommend consulting your vehicle's repair manual or a diagram specific to your truck's year, make, and model. You can often find these online through various automotive parts websites or repair manuals databases. Improper identification could lead to damaging your AC system.
