Test 4WD Engagement After Solenoid Tapping

What happens here

After applying percussive maintenance to the solenoid, the presenter returns to the truck's cab to test the 4WD system. He ensures the parking brake is engaged and the transmission is in neutral for safety. He then manipulates the dashboard's 4WD toggle switch, which is a non-standard three-way selector, to attempt to engage and disengage the 4WD system. He carefully listens for any mechanical sounds, such as a 'clunk', from the transfer case, indicating successful engagement or disengagement. He also observes the gear indicator on the dashboard to see if it reflects the correct 4WD status.

Goal: Confirm if the 4WD solenoid responded to percussive maintenance.