 99 Ford Escort
My mother's ford escort. When she comes to a stop or accelerates slowly, the engine sometimes jerks. It feels like it wants to jump out of the hood, lol. It stopped for a while, now it's doing it again. There's no lights saying anything is wrong and it doesn't do it all the time. Mainly if the engine is cold, or at operating temperature. It shifts a little rough sometimes. The trans fluid is fine. Has been changed twice and it at the right level. It's nice and red.
Anyone know if it's the trans or something else causing the jerking? | 
