Where is the low side service port on 2001 impala 3800 series V6 engine?

The low-side service port on a 2001 Impala with the 3800 Series V6 engine is typically located on the compressor itself. It's not in a standardized, easily visible location across all years and models, however. You'll need to carefully examine the compressor. It's usually a smaller port than the high-side port, and may be marked with a low-pressure symbol (often a smaller circle).

To find it, you'll likely need to:

* Consult a repair manual specific to your 2001 Impala's 3800 Series V6 engine: This is the most reliable method. The manual will have diagrams showing the exact location of all AC system ports.

* Look closely at the compressor: The ports are usually on the side or bottom of the compressor. Look for smaller fittings and any markings indicating high or low pressure.

* Use caution: The AC system contains refrigerant under high pressure, which can be dangerous if mishandled. If you're not comfortable working on AC systems, take your car to a qualified mechanic.

Without a diagram specific to your car's year and model, pinpointing the exact location is impossible. The information above should guide your search, but always prioritize safety and consulting the correct repair manual.