Fuel System Cleaning

TOOLS REQUIRED
^ J34730-1A Fuel Pressure Gauge
^ J 39765 Fuel Sender Lock Nut Wrench
^ J42960-1 Fuel Tank Drain Hose
^ J 42960-2 Fuel Flapper Door Holder

IMPORTANT:
^ Only use oil free compressed air to blow out the fuel pipes.
^ Inspect the fuel tank internally and clean the fuel tank if you find a plugged fuel filter.

CAUTION: Refer to the Battery Disconnect Caution in Service Precautions.

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Drain the fuel tank.
4. Remove the fuel tank.
5. Remove the fuel sender assembly.
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 be sure that removal of the water from the tank is complete.
10. Install the fuel sender assembly.
11. Install the fuel tank.
12. Refill the fuel tank.
13. Install the fuel filter cap.
14. Connect the negative battery cable.
15. Inspect for leaks.
15.1. Turn ON the ignition for 2 seconds.
15.2. Turn OFF the ignition for 10 seconds.
15.3. Turn ON the ignition.
15.4. Check for fuel leaks.
16. Perform the idle learn procedure. Refer to Idle Learn Procedure.