6.0 running on four cylinders
Hi guys. I have an 04 F350 with a 6.0. A couple days ago I welded freeze plugs in the ends of the EGR Cooler and changed the oil cooler. I put it all back together and it ran great. I did notice I was leaking some antifreeze though. I took it back apart to find that the o-ring where the EGR cooler goes into the intake got nicked. No big deal. I replaced it and put it back together. Now comes the problem. I can BARELY get it to start. Once it does start, it will stay running, but has no power. It looks like I am only running on 4 cylinders. I have lost cylinders 1,4,6,7. If I pull the connector off of the injector for each of those cylinders, there is no change in idle. Pull one from one of the working injectors and it nearly dies. I have pulled the harness off to inspect, but now I have found out(though someone else's post) that these four cylinders are all on the same plug at the FICM(plug #1 I believe). The plug WAS plugged into the FICM securely. Now I'm wondering if I should be more concerned with the FICM than the harness. I did have the FICM off a couple months ago, as I was only getting around 28volts. I re-soldered the key points, put it together, and it ran and started GREAT! What do you think? It's very strange that it ran so good one day with the exception of a minor leak, and today I'm only running on four. On the plus side, it doesn't leak anymore! This is my service truck for my well repair business, and I NEED to get it back on the road. Any help would be greatly appreciated!