Important: Only use oil free compressed air to blow out fuel pipes. If the in-pipe fuel filter is plugged, the fuel tank should be inspected internally and cleaned if necessary.

1. Relieve the fuel system fuel pressure, refer to the Fuel Pressure Relief Procedure 4.0L, Fuel Pressure Relief , 3.8L.



2. Drain the (4) fuel tank, refer to Fuel Tank Replacement (Draining Fuel Tank) 4.0L, Fuel Tank Draining , 3.8L.
3. Remove the fuel tank, refer to Fuel Tank Replacement (Replacement) 4.0L, Fuel Tank Replacement , 3.8L.

Important: When ever the fuel tank is cleaned, the fuel pump fuel strainer must be inspected. If the fuel pump fuel strainer is contaminated, the fuel pump fuel strainer must be replaced and the fuel pump must be inspected. The fuel pump inlet for dirt and debris. If dirt and debris are found, the fuel pump should be replaced.

4. Remove the fuel sender assembly, refer to Fuel Sender Assembly Replacement 4.0L, Fuel Sender Assembly Replacement , 3.8L.

Important: When flushing the fuel tank, the fuel and water mixture needs to be treated as a hazardous material. The material needs to be handled in accordance with all local, state, and federal regulations.

5. Flush the fuel tank with hot water.
6. Pour the water out of the fuel sender assembly opening in the fuel tank. Rock the fuel tank in order to be sure that the removal of the water from the fuel tank is complete.
7. Flush the fuel tank with hot water.
8. Pour the water out of the fuel sender assembly opening in the fuel tank. Rock the fuel tank in order to be sure that the removal of the water from the fuel tank is complete.

1. Install the fuel sender assembly, refer to Fuel Sender Assembly Replacement 4.0L, Fuel Sender Assembly Replacement 3.8L.



2. Install the fuel tank (4). Refer to Fuel Tank Replacement (Replacement) 4.0L Fuel Tank Replacement 3.8L.



3. Add fuel and install the fuel tank filler pipe cap.
4. Install the negative battery cable.
5. Inspect for leaks.

5.1.	Turn the ignition switch to the On position for 2 seconds.

5.2.	Turn the ignition switch to the Off for 10 seconds.

5.3.	Turn the ignition switch to the On position.

5.4.	Check for fuel leaks.