It is all as one piece inside the fuel tank, it also has the sending unit and cannot be purchased seperately. It's expensive $300 -$450 and a garage will charge you a few hundred to change it. It really isn't hard to do if you have any skill and about 1 hour.
Use as much gas as you can so the tank is as light as it can be, I used a motorcycle jack to lower mine. Disconnect the electronics first (battery) undo the fuel filler hose, the gas lines, and the 3 straps holding the tank to the frame. lower the tank and remove from vehicle. There is a steel O ring that holds the sending unit in the tank..use a brass punch or a piece of hard wood (DO NOT USE STEEL as it will spark and that's bad around gas!!) unscrew the ring, simply pull out sending unit...replace with new and repeat the process backward to reassemble.
my 2000 Montana is still on its original fuel pump
alternator
There is only one fuel pump fuse on a 2001 Pontiac Montana. It can be found in the engine compartment near the firewall at the rear of the compartment.
Not exactly sure what you're asking for here, but if you mean a fuel pump reset switch, as on a Ford, these vehicles are not equipped with it.
my fuel pump is not work
It is in the fuel tank.
Mounted on top and inside the fuel tank.
check the fuse to see if it is blown or replace the fuel pump relay under hood
Yes it does have a sensor, which is located with the fuel pump in the tank. Additional Info: It will cost you about 900$ Canadian to replace the entire fuel pump (the sensor is with the fuel pump).
It the gas tank!? You can access it from the trunk
The fuel filter is integrated with the fuel pump module inside the fuel tank. This filter is not serviceable by itself.
If you are getting no power then the fuse is blown or the relay is defective.