Why wont power tailgate close on 06 navigator?

If the power tailgate on a 2006 Lincoln Navigator won't close, it could be due to a few common issues. First, check for any obstructions in the tailgate's path, as even small objects can prevent it from closing. Additionally, a malfunctioning or weak power liftgate actuator or a blown fuse may be the culprit. If these don't resolve the problem, it may require a diagnostic check to identify any electrical or mechanical failures.