Fuel System Cleaning

Tools Required

• J 34730-1A  Fuel Pressure Gage
• J 45722  Fuel Sender Lock Ring Wrench. See Special Tools and Equipment .
• J 45004  Fuel Tank Drain Hose. See Special Tools and Equipment .
• J 42960-2  Fuel Flapper Door Holder. See Special Tools and Equipment .

CAUTION: Refer to the Battery Disconnect Caution in Cautions and Notices.
1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief Procedure .
3. Drain the fuel tank. Refer to Fuel Tank Draining Procedure .
4. Remove the fuel tank. Refer to Fuel Tank Replacement .
5. Remove the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
6. Inspect the fuel pump strainer. Replace a contaminated strainer and inspect the fuel pump.
7. Inspect the fuel pump inlet for dirt and debris. Replace the fuel pump if you find dirt or debris in the fuel pump inlet.
IMPORTANT: When flushing the fuel tank, handle the fuel and water mixture as a hazardous material. Handle the fuel and water mixture in accordance with all applicable local, state, and federal laws and regulations.
8. Flush the fuel tank with hot water.
9. Pour the water out of the fuel sender assembly opening. Rock the tank to ensure that all water is removed from the tank.
10. Install the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
11. Install the fuel tank. Refer to Fuel Tank Replacement .
12. Refill the fuel tank.
13. Install the fuel filler cap.
14. Connect the negative battery cable.
15. Inspect for leaks.
    1. Turn ON the ignition for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition.
    4. Inspect for fuel leaks.