My car jerks while driving but once it get over 20mph its fine. Only during take off it does this. Had a leak got that fixed but it didn't fixed the jerking problem. Can anyone help me?

Agree with above - we would start with a full scan and phase 1 test. This would most likely provide an answer to what is causing your issue and then we can prepare an estimate so you can budget accordingly. If you would like to discuss further or bring in for testing please call us at 815-877-4277. Thanks Carz R' Us