Where is the 2004 Chevy Impala air conditioning pressure switch?

The 2004 Chevy Impala AC pressure switch location varies slightly depending on the specific engine and whether it's a low-pressure or high-pressure switch. However, it's generally found on the refrigerant lines near the compressor.

To be more precise:

* Low-pressure switch: Usually located on the low-pressure refrigerant line, often near the drier or accumulator. This line is typically thinner and has a lower pressure.

* High-pressure switch: Usually located on the high-pressure refrigerant line, closer to the compressor itself. This line is typically thicker and has a higher pressure.

You'll need to consult a repair manual specific to your 2004 Chevy Impala (consider the engine size - 3.4L, 3.8L, etc.) for a precise location diagram. A visual inspection, using the descriptions above, should help you locate it. It's usually a small, cylindrical switch with wires connected. Caution: Refrigerant lines operate under pressure. Do not attempt to work on this system unless you have proper training and safety equipment.