When I accelerate slowly the car acts like it isn't getting enough gas and runs really rough/cuts out/acts sluggish/ hesitates I dont know how to explain it. It just kinda shakes, but not in the wheel. I noticed it first at a slow speed (30) But it did it again at 60. Its when I let my foot off the gas and apply pressure again. Somebody told me something about the overdrive popping on and off...which was linked to a cillenoid not knowing whether to open or close. I have no idea. Big problem? Little problem? Help!??