Close
Q:

hard jerk at low and higher speeds on 2002 Saturn SC2

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
When going down the road, if you stay steady on the pedal the car will drive smooth except for on the interstate at about 70 miles an hour then it will jerk real hard and then smooth out. If you give it a decent amount of throttle at low speeds, you get the same response. What is causing this?
(2) Answers
I'm thinking ignition system problems. Check the plugs, and the sparkplug boots for integrity.
If you want to find a specialist, here's a directory link for you:
https://repairpal.com/directory?address=37763&car_brand_names=Saturn