Engine Problem, Need suggestions..

[DavidF]

Yes, one bad spark plug would not explain your symptoms. All you would expect from one bad plug is a miss at idle and speed plus a bit of a loss of top RPM/speed.

[surroundsound64]

Yes, one bad spark plug would not explain your symptoms. All you would expect from one bad plug is a miss at idle and speed plus a bit of a loss of top RPM/speed.

Unless the engine was really out of time. Then, depending on which cylinder it is on the firing order, it could possibly cause those problems. The likely hood isn't much, hehe... but if you wanna get down into the degrees of the CS rotation and all that I think it's possible.

Maybe the fuel pump will fix it. Hopefully.