I bought a 2013 Town and Country with 140k from a pastor and his wife. I I thought I could trust them and didn't take it for a test drive before I bought it. Boy do I regret that. I from day one felt this vibration that starts right after 60 miles per hour and is worse up to 70 and then stays there after that. With a Cup of water in the van it's like you're in the Jurassic Park movie and everything is constantly vibrating. The other thing it did is when it would shift into final gear it would shake and shutter similar to the same feeling of shaking it did from 60 on up. And then one time under hard acceleration it set off the check engine light which started flashing and the van lost power and started shuttering like it was doing holy now even worse. Immediately I got off the throttle and let the vehicle coast down. As I did so the check engine light stopped flashing and the engine smoothed back out and I regain full power. I should mention hear that by fullpower I mean it has always ran a little rough 5 misfiring a little you could feel it hesitating end pulsing sometimes then under the same throttle pressure that you were under the whole time. So now on to the what I have replaced end still have no resolution. I took it to a mechanic gave it a tune up he said for $700 and replaced all the plugs and now I come to find out only replaced the 2,4 and 6 coil packs???? I'm baffled by this especially since Chrysler calls for that to be replaced at 100k, and since you're replacing 3 of them why wouldn't you replace all of them? And just for the record I'm not covered under the extended warranty for the head issue. Which is what the mechanic thinks is going and I'm starting to because I'm now and then getting the smell of anti freeze in the vehicle. So I took it back to him after I got it back from this tune up and it still set off the check engine light and it read out that the number 6 cylinder was bad. So I now have 3 coil packs to replace it with but before I get so I took it to the Chrysler dealership to have them read it out with their computer and ask them to find the vibration. they charge me $97 in told me I had snow in my rim and that there was no check engine lights being set off to tell me they thought I had snow in my room after they took it for a ride. So I then took the dealership manager for a ride and showed him the vibration is mechanic said it wasn't doing. I was told to bring it back on Monday but needed to leave for a trip. So over the weekend I found a guy with a shop who helped me replace the front cv axles and wheel bearings along with struts and shocks all around. But we didn't do the coils so I could take it to the dealership now that the check engine light came on again under hard acceleration. So the vibration is not as bad for sure but it's definitely still there from 60 to 70 specifically 62-66???????????