Check engine light came on start flashing, misfire in the cylinders, started by changing the spark plugs after the change sounded like a low rumble like a rod knock, all spark plugs are fine, drove it a while low rumble turned into a loud clanking noise and loss of power. Need some opinions before cracking open the engine to see if something happened inside the head. Change coil pack just to be safe and sound is still there. All wires are in the proper place. See video for more info.

 

Welcome to the site..

What M/Y and engine?
Theres no video link either..

 

Ranger 2001 3.0 V6 Vulcan. And I can’t get it to upload the video, I don’t know what I’m doing wrong.