My SUV has been jerking really bad when I accelerate it almost feels like whiplash. Every time I take it to the dealer they tell me there's nothing wrong with it. It makes this knocking sound coming from the engine and when I accelerate it doesn't pick up speed.

- Palm Springs, CA, USA

I was stopped at a red light in a very light rain with intermittent wipers going. Engine stopped as it does when stopped. When light turned green and I pressed the gas, nothing happened. Car rolled forward but due to grade not engine. Display message said something like Engine stopped. Press brake firmly. That-??s all I remember. There was a car behind me honking loudly and frequently. I sat there for a minute or two trying to get the engine going again. Y moving the shifter. I was able to take the car in and out of park multiple times, which I should not have been able to do if the engine was off, so the engine was not off. I think I must have finally hit the engine start switch but I don-??t remember how many time. Once the engine started again the car without further problem.

- Chelmsford, MA, USA