Where is the fuel pump located?

the fuel pump is most likely to be located under the back seat

Down into the gas tank.

fuel pump is in the tank. lift the panel in the trunk right behind the rear seats and there is a seal and cover with your fuel lines in it. if you remove it the pump is attached at the bottom......becareful the line is under pressor and gas will spray when you un hook it.

The 2003 Nissan Altima fuel pump is under the back seat. To gain access there are two locking mechanisms under the front of the seat. Pull the two lock rings toward the front of the car to release the seat from the locks. Remove the bottom seat cushion which gives you access to the fuel pump cover plate. The plate is on the driver side and is black. There are four 1/4 turn plastic phillips head locks on the cover. Release the 4 locks, lift the cover and disconnect the electrical connection to the pump. Disconnect the fuel line which will have residual pressure in the line. Squeeze the connector lock fitting which is usually white or clear color, and with a twisting motion pull the fuel line fitting toward the front of the car. Fuel will pour out, so have something under the vehicle or fuel line to catch or absorb the fuel. The pump is secured in the tank by a threaded black ring. Loosen the ring by turning it counter clockwise until it is removed. Then lift the fuel pump half way up. Now there is some interference from two wires connected at the bottom of the pump, and from the fuel gauge sending unit float. You will have to tilt the pump and manuever it until you clear the float and wiring. Cautions: No smoking, do not bend or distort the sending unit float arm, the fuel line is under pressure, note the location of the pump assembly O ring seal, assembly is the reverse of disassembly, and the entire assembly is replaced, and not just the pump like other vehicles. The pump assembly has the filter/sock incorporated with the unit, and it is the only filter in the entire fuel system.

Is that the same on 2001

Is it something else need to be changed on it after you change the fual pump

How to put gas in the carburetor

What carburetor? The vehicle should be fuel- injected.

Does 2006 nissan Altima have access panel

does it have a reset button for the fuel pump?

I have a 07 Nissan Altima where is the fuel pump located