F 250 4WD Super Duty V8-6.4L DSL Turbo (2008)
5. If required, using a rubber mallet, gently tap the water-in-fuel sensor into place. Pull on the water-in-fuel sensor to verify that it is securely in
place.
6. Install the fuel conditioning module.
7. Start the vehicle and idle for one minute while noting engine performance.
8. If engine is running rough, check for air leaks.
9. Shut the vehicle off and inspect for fuel leaks.