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Check Engine light on & rough running

1K views 2 replies 3 participants last post by  action4478 
#1 ·
First of all, hello! I have been reading this for the past month or two and now need help. I have a 95 F350. I installed new fenders and power washed the engine all at the same time. Since putting it all back together, it now runs like $^%$! At first start up, it purrs. Then after a second or two, the check engine lightt comes on and it sounds as if iut is only hitting on 4-6 cylinders. Any ideas on where to start since I don't know if something got wet or something didn't get hooked up. I've checked all grounds and retightned the injection box on the left fender. Thanks dieselbrad
 
#2 ·
there is a big wire harness going across the valley (i forgot whats its called)of the motor unplug it and see if these water in it. it happened to me before and it coses it to run on the left side or right side only.
 
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