Fuel Filter: Service and Repair

Removal And Installation:

REMOVAL

WARNING: Read "General Precautions" before working on the fuel system. Refer to "General Precautions".

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 "FUEL PRESSURE RELEASE" (QR25DE), "FUEL PRESSURE RELEASE" (VQ35DE).
3. Remove the rear seat bottom.




4. Remove the fuel pump inspection hole cover.
5. Disconnect the harness connector, and fuel feed hose from the fuel level sensor unit, fuel filter, and fuel pump assembly.




Remove the quick connector as follows:
- Hold the sides of the connector, push in tubs 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.

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.




6. Using a lock ring wrench, remove the lock ring.




7. Remove the fuel level sensor, fuel filter, and fuel pump assembly.

CAUTION: Do not bend the float arm during removal.

INSPECTION AFTER REMOVAL
Make sure the fuel level sensor, fuel filter, and fuel pump is free from defects and foreign materials.




INSTALLATION
Installation is in the reverse order of removal.
- Install the fuel level sensor, fuel filter, and fuel pump assembly with the front mark (arrow) facing the front of the vehicle.




- Connect the 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 is heard.
3. 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.

INSPECTION AFTER INSTALLATION
- Use the following procedure to check for fuel leaks.

1. Turn the ignition switch to ON (without starting the engine). Then check the connections for fuel leaks by applying fuel pressure to the fuel piping.
2. Start the engine and let it idle and make sure there are no fuel leaks at the fuel system connections.