How do you reinstall fuel rail on 2006 ford E250?

To reinstall the fuel rail on a 2006 Ford E250, first ensure that the fuel injectors are properly seated in the rail and the o-rings are lubricated. Align the fuel rail with the intake manifold and press it down gently to secure the injectors in place. Reattach the fuel rail bolts and torque them to the manufacturer's specifications, then reconnect the fuel line and any electrical connectors. Finally, check for leaks after reapplying the fuel pressure.