I have a 1995 f-250 powerstroke and since i do not know very much about the mechanics of a diesel engine i am asking for some help.
This truck isnt running right. The engine is very slow and it vibrates like crazy like it isnt running on all cylinders and detonating. it was doing this off and on. The check engine light would come on whenever it would do this. So i thought everything may have been clogged up so i put some diesel fuel supplement in my tank to see if it just need a cleaning. Now the problem i had is constant. What do you guys think the problem is and a remedy?
Thanks
Chris

 

Possibly an injector harness has come loose/shorted out/melted. Inspect the harness connections under the valvecovers.