Engine is shaking like it has mexican jumping beans in it....started running a little rough..minor vibration...replaced plugs and wires...rotor and cap....was running worse(1st time i acted like cheetah and scratched head....but not last).....took it to work...didnt have much choice.....2 days later harmonic balancer went and water pump decided to join it...figured i didnt have to act like cheetah anymore...replaced hb and wp...didnt make any difference...back to acting like cheetah again....then decided to attack sensors and vacumn...which i know next to nothing about...wasnt EGR...next up MAP....oops...found out that i dont have one...,at least as far as i can tell.....I need help badly...thanks....Steve

 

what year is your truck? engine size? EFI? tranny?

 

95 F150 SC LB 302 5.0 EFI Auto w/OD

 

Make sure your spark plug wires aren't touching each other after the cap. Especially #7 & #8.

Take care,
-Chris