Vibration felt in the cab but no rough idle
 

I drove around all day yeaterday and went to my softball game, came out and started it up and noticed immediately a weird vibration felt in the pedals steering wheel and seat. There's no rough idle or anything of that nature and have never had anything like this before. There's about an 1/8 of a tank of fuel in it. It's an 03 with 100,078 miles on it all stock.

auto or stick? Something is making everything shake! When you popped the hood what did the engine look like?

Auto sorry. I didn't see anything last night. I just went out and started it up and looked at it and there's nothing moving and the vibration is gone?

Could be a Hiccup failure on the way! See if it left a code!

Would it throw a code without a cel coming on?

Sometimes it will