How do you install a fuel pump kit in a 07 Nissan Sentra

there is another fuel pump inside the fuel tank... this might already been corroded/blocked.

There are many online wiring diagram solutions, but the cheapest way to find your diagram is to purchase a haynes or chilton manual from the local auto parts store. Both have excellent wiring, fuel lines, brakelines, etc diagrams. I prefer the Haynes manual myself.

You need a fuel pump update kit. Go to your closet Nissan dealership and ask them for a rebuild kit for your fuel sending unit. What has happened is the check ball that keeps gas in the fuel line is not seating well and letting all the gas go back into the fuel tank. So when you try and start the car fuel has to come from all the way in the fuel tank.

your car might be covered under warranty if not go to any nissan dealearship parts dept ask for a fuel pump repair kit not the fuel pump and install it by removing your fuel pump assy that should fix your problem

1991-96 Sentra
See Figures 6 and 7

CAUTION Fuel injection systems remain under pressure after the engine has been turned OFF. Properly relieve fuel pressure before disconnecting any fuel lines. Also observe all safety practices outlined earlier in the Fuel System Safety Precautions. Failure to do so may result in fire or personal injury.

1. Following proper procedures, relieve fuel system residual pressure.
2. Disconnect the negative battery cable.
3. Drain the fuel tank.
4. Remove the rear seat cushion.
5. Remove the inspection cover.
6. Disconnect the fuel gauge and the fuel pump electrical harness connector.
7. At the fuel filler door, disconnect the fuel filler tube from the body.
8. Raise and support the vehicle safely.
9. Disconnect the ventilation hoses.
10. Disconnect the fuel outlet, return and evaporation hoses, at the front of the tank and plug the open fuel lines.

If equipped, remove the tank protector.

1. Support the tank, remove the fuel tank mounting bolts, and lower the tank from the vehicle.

To install:
If the sending unit or the fuel pump are removed, a new O-ring must be installed.

1. Install the fuel tank to vehicle and torque the mounting bolts to 20-26 ft. lbs. (27-37 Nm). If removed, install the fuel tank protector.
2. Connect all the fuel lines and ventilation hoses.
3. Lower the vehicle and connect the filler tube to the vehicle body.
4. Connect the fuel gauge and fuel pump electrical connections.
5. Install the inspection cover and rear seat cushion.
6. Pour fuel back into fuel tank.
7. Connect the negative battery cable.
8. Start engine and check for fuel leaks.

Fig. 5: Exploded view of the fuel tank components-1988-90 4WD Sentra



Fig. 6: Exploded view of the fuel tank components-1991-94 Sentra/NX Coupe



Fig. 7: Exploded view of the fuel tank components-1995-96 Sentra


Hope this help (remember rated and comment this) TY for using Fixya.

1. Release fuel pressure by removing the fuel pump fuse and spinning the engine over.
2. Disconnect the battery ground cable.
3. Open the fuel filler lid and remove the fuel filler cap at relieve the pressure in the fuel tank.
4. Remove the rear seat cushion.
5. Remove the inspection hole cover located under the rear seat cushion by rotating the attaching clips 90 degrees to line them up for removal.
6. Disconnect the fuel pump assembly electrical connector.
7. Disconnect the fuel feed hose quick connector. You will need to push in the winged tabs at the end of the fuel line. Be careful not to break it.
8. Remove the six fuel level sensor and fuel pump assembly retainer ring screws.
9. To remove, pull up the fuel pump assembly. Be careful not to damage the fuel level sensor. You will have to tilt the assembly to remove it completely.

I believe this is a manual fuel pump and you may have lost the prime, no fuel in hose to tank. If the hose from rear frame to tank has a break or hole, it will **** air and not fuel from tank. If this is not the case, possible clogged fuel hose, tubing, or pickup tube in tank assuming you have turned the engine over serveral times and there is enough fuel in tank. Some tanks do not pickup from very bottom because of water laying in bottom of tank from condensation.

dont waste your time and money on such snake oil

You have to remove the rear seat cushion and there is an inspection hole cover over the sending unit and fuel pump. The 2 come out as one unit. Remove the fuel line coupling and then the 6 screws holding the inspection cover on. BE CAREFUL not to bend the level sending arm. If you remove the fuel filter, make sure you mark which way it came of so it cam be put back in the same way.
Bob 2003 Nissan Sentra SE-R SPEC V

First from the fuel tank in side the fuel tank there is filter remove the screws on the top where the fuel gauge fitted when you remove gauge you can see fillter that is one sometimes blocked.

Next if you check fuel filter it is ok, but nissan sunny has fuel filter inside the caburator where fitted fuel pipe from the fillter clean that filler.

ather thiing is check your connections any leak or loose.

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