Operation CHARM: Car repair manuals for everyone.

Fuel System Cleaning

TOOLS REQUIRED
^ J 34730 Fuel Pressure Gauge
^ J 39765 Fuel Sender Lock Nut Wrench

REMOVAL PROCEDURE

IMPORTANT: Only use oil-free compressed air to blow out the fuel pipes. If the in-line 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. Service and Repair
2. Drain the fuel tank. Refer to Fuel Tank Draining Procedure. Procedures
3. Remove the fuel tank.




4. Remove the fuel sender assembly.

IMPORTANT:
^ Whenever 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.
^ 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 laws and regulations.

5. Inspect the fuel pump inlet for dirt and debris. If dirt and debris are found, the fuel pump should be replaced.




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

INSTALLATION PROCEDURE

NOTE: Refer to Fastener Notice in Service Precautions.




1. Install the fuel sender assembly.




2. Install the fuel tank.
3. Add fuel to the fuel tank.
4. Add fuel and install the fuel tank filler cap.
5. Connect the negative battery cable.
6. Inspect for leaks.
6.1. Turn the ignition switch to the on position for 2 seconds.
6.2. Turn the ignition switch to the off for 10 seconds.
6.3. Turn the ignition switch to the on position.
6.4. Check for fuel leaks.