A little background first as I have no clue about these cars. Its been to the dealership 3 times..once for a new water pump and other times for a new knock sensor and turbo. I took it in once cause it was making a loud ticking sound and it seemed to have lose power but once I got is back from them the same problem was still there. NEW problem started today...driving to go get breakfast and I pulled onto a highway and shifted badly..thinking it was just a bad shift I was like..my bad...but the car cont. to act like it was only getting gas in spurts. Now my checking engine light is blinking and the Trax Stap light is on. I was about to drive it home but its driving rough. I have since replaced the spark plugs as they looked like they seen better days but after starting it back up it still sounds the same...also my engine is shacking badly. I always thought in the past that it my have a bad injector but I don't know.