I just rebuilt the fuel bowl, replaced the o-rings and non-serviceable plug on the HPOP, changed the glow plugs, and did an oil change. I have driven over 400 miles since. After working on the truck, it started with little problem. The engine has smoothed out a little, but it feels like a cylinder or two are not firing still. I would think that with that many miles on it all of the air should be out of the oil and fuel lines. The check engine light is on and I'm currently looking for someone that can pull the codes for me, (I'm in SW Michigan if anyone out there can help). I have rechecked to make sure that I have reconnected all the wires and such. If anyone has any ideas I'm open to any suggestions.

 

was it running rough before you rebuilt the fuel bowl? how many miles on the truck? any mods?

 

262K miles, engine is stock, the truck ran smooth prior to working on it. I was careful when cleaning the HPOP, but I'm afraid something may have got into an injector and clogged it.

 

I've got some codes off the truck finally. P1316, P1247, and P1211. anyone got some ideas