1. Remove the negative battery cable(s)..
2. Remove the fuel from the tank. Refer to
3. Remove the fuel tank.
4. Remove the fuel sender. Refer to
5. Clean the fuel tank.

Important: The fuel tank should be replaced if the tank is rusted internally.

6. Remove the fuel strainer or replace if necessary. Refer to
7. Remove the fuel feed hose at the fuel lift pump.
8. Remove the fuel return line at the injection pump.

•	Use low air pressure to blow out the lines toward the rear of the vehicle.

•	Replace the pipes if they are rusted internally.

9. Remove theECM B from the fuse panel.
10. Remove the fuel filter. Refer to

1. Install the fuel sender. Refer to
2. Install the fuel tank.
3. Install the fuel feed pipes at the fuel lift pump.
4. Install clean diesel fuel into the tank until it is ¼ full.
5. Install the fuel tank cap.
6. Install the negative battery cables.

Important: Use a suitable container to catch the fuel.

7. Using the scan tool, command the lift pump On until clean fuel is pumped out.
8. Install a new fuel filter. Refer to
9. Install a hose from the return line at the fuel injection pump to a closed metal container with a capacity of at least 8 liters (2 gallons).
10. Using the scan tool, command the lift pump On until clean fuel is pumped out.
11. Install the ECM B fuse in the fuse panel.

•	Crack open each injection line at the nozzle. Use two wrenches to prevent nozzle damage.

•	Using the scan tool, command the lift pump On until clean fuel is pumped out.

Tighten
Tighten the injection line to nozzle fitting to 25 N·m (18 lb ft).

Important: Use two wrenches to prevent nozzle damage.

•	Start the engine and allow it to idle for 15 minutes.

Important: Make sure the fuel return line is in the metal container and that the container does not overflow.

•	Remove the hose from the metal container.

12. Install the fuel return line to the injection pump.
13. Check for leaks.
14. Clear any engine DTCs.

Engine Will Run or Start

1. Drain the fuel tank. Refer to
2. Fill the fuel tank with diesel fuel.
3. Run the engine for 15 minutes.

Engine Will Not Run

1. Drain the fuel tank. Refer to
2. Fill the fuel tank with diesel fuel.
3. Disconnect the fuel solenoid fuse connector in the underhood fuse relay center.
4. Remove the fuel hose between the fuel manager/filter and the injection pump.
5. Connect a hose to the fuel manager/filter outlet and run it to a closed metal container.
6. Crank the engine for 15 seconds with one minute cooling periods to purge the gasoline from the system.
7. Install the fuel hose between the fuel filter and the injection pump.
8. Install the fuel solenoid fuse in the underhood fuse relay center.
9. Start the engine.

Important: Check for leaks.

10. Run the engine for 15 minutes.
11. Clear the engine DTCs.