car is bucking and jerking,it runs fine when you first drive it.after driving for about 1 half hour it will begain to buck and jerk.seems worse when start the car after driving.also when you pump brakes in park the car jerks.
car is bucking jerking. on 1997 Chevrolet Malibu
Really need to check the codes in the computer and do a diagnostic as this could be so many things, including a ruptured Power Brake Booster. Any Check engine Light or Service engine Soon Lights on?
no there is no check engine or service engine soon lights on i think i have some type of vacum leak and was told that i may need a map sensor im not sure what is going on ive replaced so many different parts and still have no idea i dont think i can have diagnostics on it because there are no lights on