Hey all, I recently took my 2005 Dodge Ram 1500 with the 4.7L magnum to the Shop for a sparkplug change, I felt what seemed to be a misfire after starting it up the other day. It sounded kind of bogged out and the engine felt like it was shaking the whole truck, I called Dodge and was told it sounded like I needed a sparkplug change. So I’m at the shop they change my sparkplugs we start the truck up and there still seems to be a misfire. So they tell me I need to take the vehicle to dodge because the check Engine light came on at that time. I took the truck to advance to be put on the computer and it registered a cylinder 7 misfire, So I Looked up my Firing order online looked at the plug that was misfiring and lo and behold it wasn’t hooked up. I reconnected it and No more misfiring, so I turned the truck off and retire for the day.... The next Morning I wake up start my truck and I get the same Bogging sound only this time there is a Loud Clicking coming from my Motor I placed my hand on the driver side part of the motor and could feel a heavy thump, checked the other side and it wasn’t there. So I Immediately Take the truck to the closest dealer which happened to be a Chevy earlier and they put it on some type of machine and said I needed a whole new engine because I only had 60% compression in cylinder #3. I was told there was nothing else that could be done other than a new Motor. I’m thinking about a second opinion What are your thoughts on this Could a Botched Spark plug change cause this, Should I look into other options. Sorry this was so long I love my Truck Just not the 4,000 dollar repair Bill.