Nissan Maxima Service and Repair Manual: Removal and installation

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

Exploded View

Nissan Maxima. Exploded View

  1. Lock ring
  2. Fuel level sensor, fuel filter and fuel pump assembly
  3.  O-ring
  4.  Fuel tank
    Front

Removal and Installation

WARNING: Read "General Precautions" before working on the fuel system. Refer to GI-27, "General Precautions".

NOTE: When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.

REMOVAL

  1.  Unscrew the fuel filler cap to release the pressure inside the fuel tank.
  2.  Release the fuel pressure from the fuel lines. Refer to EC-592, "Inspection".
  3.  Disconnect the battery negative terminal.
  4. Remove the rear seat cushion. Refer to SE-70, "Removal and Installation" (with fixed seatback, WITH CLIMATE CONTROLLED SEATS), SE-73, "Removal and Installation" (with split seatback, WITH CLIMATE CONTROLLED SEATS), SE-128, "Removal and Installation" (with fixed seatback, W/O CLIMATE CONTROLLED SEATS) SE-131, "Removal and Installation" (with split seatback, W/O CLIMATE CONTROLLED SEATS).
  5.  Turn the four retainers 90 degrees in a clockwise direction and remove the fuel pump inspection hole cover.

Nissan Maxima. Removal and Installation

  1. Disconnect the fuel level sensor, fuel filter, and fuel pump assembly harness connector, EVAP hose quick connector, and the fuel feed hose quick connector from the fuel level sensor unit, fuel filter, and fuel pump assembly.

Nissan Maxima. Removal and Installation

Remove the quick connector as follows:

  •  Hold the sides of the connector, push in tabs and pull out the tube.
  •  If the connector and the tube are stuck together, push and pull several times until they start to move. Then disconnect them by pulling.

Nissan Maxima. Removal and Installation

CAUTION:

  •  The tube can be removed when the tabs are completely depressed. Do not twist it more than necessary.
  •  Do not use any tools to remove the quick connector.
  •  Keep the resin tube away from heat. Be especially careful when welding near the tube.
  •  Prevent acid liquid such as battery electrolyte, etc. from getting on the resin tube.
  •  Do not bend or twist the tube during installation and removal.
  •  Only when the tube is replaced, remove the remaining retainer on the tube or fuel level sensor, fuel filter, and fuel pump assembly.
  •  When the tube or fuel level sensor, fuel filter, and fuel pump assembly is replaced, also replace the retainer with a new one (green colored retainer).
  •  To keep the connecting portion clean and to avoid damage and foreign materials, cover them completely with plastic bags or something similar.

Nissan Maxima. Removal and Installation

  1. Remove the lock ring using a socket drive handle and Tool as shown.

Nissan Maxima. Removal and Installation

Tool number : KV991J0090 (J-46214) (shown)
: KV101207S0 ( - )

CAUTION: Discard the lock ring if damaged or distorted.

Nissan Maxima. Removal and Installation

  1. Remove the fuel level sensor, fuel filter, and fuel pump assembly and O-ring. Discard the O-ring.

CAUTION:

  •  Do not bend the float arm during removal.
  •  Do not reuse the O-ring.

INSPECTION AFTER REMOVAL

Inspect the fuel level sensor, fuel filter, and fuel pump for any defects and foreign materials. Replace as necessary.

INSTALLATION

Installation is in the reverse order of removal.

Nissan Maxima. INSTALLATION

  •  Install the fuel level sensor, fuel filter, and fuel pump assembly with the fuel feed hose facing the front of the vehicle as shown. Use a new O-ring.

CAUTION: Do not reuse O-ring.

Nissan Maxima. INSTALLATION

  • Connect the quick connector as follows:
  • Check the connection for damage or any foreign materials.
  •  Align the connector with the tube, then insert the connector straight into the tube until a click is heard.
  • After the tube is connected, make sure the connection is secure by performing the following checks:
  • Pull the tube and the connector to make sure they are securely connected.
  • Visually confirm that the two retainer tabs are connected to the quick connector.

Nissan Maxima. INSTALLATION

INSPECTION AFTER INSTALLATION

Use the following procedure to check for fuel leaks.

  1.  Turn the ignition switch to ON (without starting the engine) to apply fuel pressure to the fuel system, then check the connections for fuel leaks.
  2.  Start the engine and let it idle and check for fuel leaks at the fuel system connections.
Periodic maintenance
FUEL SYSTEM Inspection Inspect fuel lines, fuel filler cap and fuel tank for improper attachment, leaks, cracks, damage, loose connections, chafing or deterioration. If necessary, repair or r ...

Fuel tank
Exploded View Fuel filler cap  Grommet  Fuel filler tube  Fuel tank  Fuel filler hose  Fuel tank protector  Fuel tank mounting straps O-ring &nb ...

Other materials:

Drinking alcohol/drugs and driving
WARNING Never drive under the influence of alcohol or drugs. Alcohol in the bloodstream reduces coordination, delays reaction time and impairs judgement. Driving after drinking alcohol increases the likelihood of being involved in an accident injuring yourself and others. Additionally, if you ...

P0456 evap control system
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0456 is displayed with DTC P0442, first perform the trouble diagnosis for DTC P0456. This diagnosis detects very small leakage in the EVAP line between fuel tank and EVAP canister purge volume control solenoid valve, using the intake manifold va ...

Tire Pressure Monitoring System (TPMS)
This vehicle is equipped with the TPMS. It monitors tire pressure of all tires except the spare. When the low tire pressure warning light is lit and the "Tire Pressure Low-Add Air" warning appears in the vehicle information display, one or more of your tires is significantly under-inflated. I ...

Nissan Maxima Owners Manual

Nissan Maxima Service and Repair Manual

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