well as i headed to the shop today my truck started to vibrate pretty good... it is coming from the engine as far as i can tell... it does it at a stand still also... i gave it a quick look over at the shop and proceded to ignore it... so on the drive home it starts shaking really damn bad... and now the service engine soon light came on... i have no idea what this could be... any ideas... i am gonna go check if it threw any soft codes... it might have since it turned the light on