Fuel Delivery and Air Induction: Service and Repair

FUEL SYSTEM CLEANING

TOOLS REQUIRED
- J 34730-1A Fuel Pressure Gage
- J 45722 Fuel Sender Lock Ring Wrench
- J 45004 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.

1. Disconnect the negative battery cable.

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

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.
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.

8. Flush the fuel tank with hot water.

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.

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.
11. Install the fuel tank.
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.