Attempt to Free Solenoid (Percussive Maintenance)

What happens here

With the truck remaining on the automotive lift, the presenter gets under the vehicle to access the 4WD solenoid on the transfer case. He then uses a hammer to apply a strategic tap to the solenoid. This 'percussive maintenance' is a common, albeit temporary, troubleshooting technique employed to free up stuck solenoids or actuators. The objective is to dislodge any internal components that may be jammed, thereby allowing the solenoid to function correctly.

Goal: Attempt to unstick a non-responsive 4WD solenoid.