The question you ask is too involved for a proper answer. You may want to go to a car parts store, or book store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.
Or you could unplug the fuse for the pumnp, and run the motor till it dies to bleed pressure from the fuel system.
Then take off the neg battery terminal.
Grab the tebs under the bottom of the rear seat and pull outward and upward to remove it.
Loosen two 10mm bolts at the bottom of the backrest to the seat and lift out.
remove the cover you'll see just below the driver's side strut tower.
there will be the pump in all it's splendor! remove the retaining ring, lift the pump out.
Disconnect wire harness('s) and fuel lines.
Do this exactly backwards with the new pump.
Fire it up and enjoy!
How do you replace fuel filter in 2005 nissan sentra?
fuel pump on my 1984 nissan sentra DX 4 door is in block next to oil filter under carb
problem with fuel filterhow do i change the fuel filter on my 2001 Nissan sentra gxe, and where is it located?
Push down on the trunk release, by the drivers seat.
The 2006 Nissan Sentra runs on regular unleaded.
The 2010 Nissan Sentra runs on regular unleaded.
The 2005 Nissan Sentra runs on regular unleaded.
The 2008 Nissan Sentra runs on regular unleaded.
The 2003 Nissan Sentra runs on regular unleaded.
The 2012 Nissan Sentra runs on regular unleaded.
The 2004 Nissan Sentra runs on regular unleaded.
The 2014 Nissan Sentra runs on regular unleaded.