Where is the secondary air pump on your 2000 Chevy impala 3.4 engine?

On a 2000 Chevy Impala with the 3.4L engine, the secondary air injection (AIR) pump is typically located on the passenger side of the engine compartment, near the firewall. It's often mounted somewhat high up and might be partially obscured by other components. It's a relatively small, somewhat cylindrical pump with several hoses attached.

However, the exact location can vary slightly. It's best to consult a repair manual specific to your vehicle's year and engine to get a precise diagram and location. A visual inspection of your engine bay, with the help of a diagram from a repair manual (available online or at auto parts stores), will be the most reliable way to pinpoint it.