My moms 95 4.6 bird keeps surging then it seems to almost die out. I tried the mlps, tps, and the only o2 sensor i could get to without taking the exhaust off but none of that helped at all. The car will rev up to about 4k and then it drops right back down even if the pedal is to the floor. It only seems to do this in gear. It will idle and i can rev the motor with no problems in neutral and park. Though it does also sometimes die immediately after starting. Any ideas what's going on?