Fuel Feed and Fuel Return Pipe Purge

FUEL FEED AND FUEL RETURN PIPE PURGE PROCEDURE

CAUTION: Refer to Vehicle Lifting Caution in Service Precautions.




1. Raise the vehicle.

CAUTION: The water/diesel fuel mixture is flammable. The water/diesel fuel mixture could be hot. In order to help avoid personal injury and property damage, do not touch the fuel coming from the drain hose. Also do not expose the fuel to open flames or sparks.

Be sure you do not overfill the container. Heat (such as from the engine) can cause the fuel to expand. If the container Is too full,, fuel could be forced out of the container. This could lead to the risk of personal injury and vehicle damage.

2. Open the air bleed valve on top of the fuel manager/filter.




3. Connect a hose to the air bleed valve located on the top of the fuel manager/filter.
4. Place the other end of the hose into a suitable container.
5. Using a scan tool, command the lift pump ON, until clear fuel is observed at the air bleed hose.
6. Close the air bleed valve.
7. Lower the vehicle.
8. Start the engine.
9. Allow the engine to run for 5 minutes at idle.
10. Check for any fuel leaks.
11. Clear all of the engine DTCs.