Ford Powerstroke Diesel Forum banner

Rough Idle problem finally fixed!

1 reading
140K views 9 replies 10 participants last post by  rnr  
Mines running idleing with a miss too. Where's the EBP sensor?
I need to replace my fuelpump I think, there is fuel in the valley on top of the motor. I put on the 6637 filter, new fuel filter and opened up my exhaust, no cat or muffler. Still idles rough but when you stab the throttle it smooths out and runs strong. Shop that rebuild my tranny said injectors were good that it was probably something internal with one or more of the cylinders being bad.
Has 336k miles on it.