To change the fuel pump in a 2005 Impala one will need a fuel pump kit, socket wrench set, and a torque wrench. The gas will need to be drained from the tank and the battery will need to be disabled from the engine. The fuel pump is located inside of the fuel tank.
In the fuel tank...
Inside the fuel tank
yes, interchangable
No, you must drop the fuel tank to access the fuel pump.
The fuel pump on a 94 Chevy Impala SS is changed by lowering the fuel tank, disconnecting the wires, removing the fuel lines, and unbolting the pump. It can then be lifted from the tank and a new pump put into place.
Remove the belt from your 2005 Chevy Impala water pump. Remove the water return hose. Remove the water pump retaining bolts. Reverse the process to install the new water pump.
You will have to drop the fuel tank to access the fuel module. It is not a job to do on the ground.
Change the fuel pump. You have to remove the fuel tank and use a special tool to get the pump out.
An electric pump mounted in the fuel tank.
I have been told every 40,000 miles to protect the fuel pump located in the fuel cell.
In the fuel tank
Fuel pump is in the tank, take to dealer or be adventerous and do it yourself