Nissan Sentra manuals

Nissan Sentra Service Manual: Fuel level sensor unit, fuel filter and fuel pump assembly

Nissan Sentra Service Manual / Engine / Fuel system / Removal and installation / Fuel level sensor unit, fuel filter and fuel pump assembly

Exploded View


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

Removal and Installation

WARNING:

Read “General Precautions” when working on the fuel system. Refer to FL-2, "General Precaution".

NOTE:

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

REMOVAL

  1. Release the fuel pressure from the fuel lines. Refer to EC-143, "Work Procedure".
  2. Check the fuel level with the vehicle on a level surface. If the fuel gauge indicates more than the level as shown (1/2 full), drain the fuel from the fuel tank until the fuel gauge indicates a level at or below as shown (1/2 full).
  1. Insert fuel tubing of less than 25 mm (0.98 in) diameter into the fuel filler tube through the fuel filler opening to drain fuel from the fuel filler tube.
  2. Disconnect the fuel filler hose from the fuel filler tube.
  3. Insert fuel tubing into the fuel tank through the fuel filler hose to drain fuel from the fuel tank.


  1. Open fuel filler lid.
  2. Remove trunk floor carpet. Refer to INT-43, "TRUNK SIDE FINISHER : Removal and Installation".
  3. Open filler cap and release the pressure inside fuel tank.
  4. Remove rear seat cushion assembly. Refer to SE-23, "Removal and Installation - Seat Cushion Assembly".
  5. Remove inspection hole cover.


  1. Disconnect harness connector (1), fuel feed hose (3) and quick connector (4) from fuel level sensor unit, fuel filter and fuel pump assembly (2).


CAUTION:


CAUTION:


  1. Remove lock ring for fuel level sensor unit, fuel filter and fuel pump assembly with Tool (A) by turning counterclockwise.

Tool number (A) : KV991J0090 (J-46214) (shown) : KV101208S0 ( — )


  1. Remove fuel level sensor unit, fuel filter and fuel pump assembly (1).

CAUTION:

INSTALLATION


INSTALLATION

Installation is in the reverse order of removal.

  1. Install the O-ring to the opening of the fuel tank.

CAUTION:

Do not reuse O-ring.

  1. Insert the fuel level sensor unit, fuel filter and fuel pump assembly to the fuel tank with its matching arrow aligned with fuel tank matching arrow.

CAUTION:

NOTE:

For fuel level sensor assembly matching mark is located on the fuel tank to the rear side of the vehicle.


  1. Install Lock ring with Tool (A) to tighten lock ring.

Tool number (A) : KV991J0090 (J-46214) (shown) : KV101208S0 ( — )

Quick Connector

Connect quick connector as follows:

  1. Check the connection for damage or any foreign materials.
  2. Align the connector with the tube, then insert the connector straight into the tube until a click sound is heard.
  3. After connecting, check that the connection is secure by following method.

Inspection


Inspection

INSPECTION AFTER INSTALLATION

Use the following procedure to check for fuel leaks.

  1. Turn ignition switch “ON” (with engine stopped), then check connections for leaks by applying fuel pressure to fuel piping.
  2. Start engine and let it idle and check there are no fuel leaks at the fuel system connections.
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