Imagine you have one foot firmly on the foot brake. The other foot is pumping the accelerator repeatedly. The car wants to jump forward and rocks back and forth. That is exactly what happens when I start my car, except I am not actually doing the whole pumping the accelerator thing. It only occurs when the car is cold. Car is in park, foot on brake, turn the ignition, car starts and then does the weird surge/rock thing 8-10 times. It is not a slight rock, it is really obvious! So obvious that I