It may be in need of a tune up.
throttle plate stuck? I'm not sure. When I'm driving, I take my foot off the gas and the car jerks and when I have to stop and I push on the brakes the car revs and jerks forward and occasionally stalls
its probably just you jerking yourself
If car jerks around 70 miles per hour, the wheel may off balance. The axle or undercarriage may also have issues.
95 lin town car when turning on air conditioner and the clutch kicks on in the air compressor it jerks and the jerks at the same time car experiencing loss of electricity from engine when it jerks
no .... no way.
Take it back to the shop and complain.
It might be that people toke it off or it might not have oil or the transmission doesnt work.
This means when your car jerks very hard.
Water in the gas
Is normal.
No, it will not take paint off a car.
When an automatic car jerks into fourth gear it could be the transmission. You may need transmission fluid or a new transmission. A licensed mechanic can check the car.