When the car is coming to a stop, it is decelerating--or it has negative acceleration.
One of the possible causes of a Pontiac Bonneville to jerk during acceleration is that the car needs a tune up. The engine misfiring can lead it to jerk as you accelerate.
it could be a number of things. my first guess would be brakes. when you say pull off, do you mean turn off to the side of the road/make a turn. or take off/accelerate from a stop
It COULD be a motor mount or worn suspension component.
The car tilts forward on the shocks as you slow down. Then when you finally stop, the front shocks pop back up, and you are thrown slightly backwards. :)
igniter is possibility
A car goes faster when you accelerate. It slows down when you brake.
The car's heavy inertia made it difficult to accelerate quickly from a stop.
it squeaks when you accelerate and stop because that is the wheel (along with the back left) that push the car. i think its correct but im 10 so dont know for sure but i do get straight A's. sorry for bad grammar.
I don't have a car.
Try to accelerate slowly when leaving the stop light.
I would check your tires they could be out of balance. or a tire could be bad .