OK, so I returned from Afghanistan in May and my truck was suffering from hard starts in the morning, would idle rough and then smooth out after a few minutes, but you could feel it missing when accellerating. It continued with this until a little over a week ago and then wouldn't start unless you plugged in the block heater overnight. I changed the fuel filters, hoping that that would help out (Honestly don't remember what brand they are). Then, on Tuesday it started up in the morning, ran kind of rough on the way in to work. A couple of hours later I started it up and it ran rough. At about 1:00 PM I went to start it and got nothing. I plugged in the block heater and continued to try and it would fire for about a second and then die.
I came on here and from the previous symptoms I figured that it was having stiction issues and changed the oil, went with Rotella T6 5W40 and substituted 2 qts for Hot Shots Secret (Yes, I used Motorcraft Oil Filter). Since then I have gone out and continued to cycle the engine to allow the additive to work. What is wierd is that when you try to start the engine it won't even attempt to fire while the starter is cranking fast. Once the batteries start to run low and the starter slows down it will fire and on occasion run for a few seconds. Sometimes it will run like crap, sometimes it will purr for those few seconds, then it will die.
Plugged in a Diagnostic Tool and pulled codes and then cleared them, the only one that comes back is P1000. Before I cleared the codes it did show two codes for the FICM, but they haven't came back.
With the machine plugged in while cranking the ICP showed over 800 - 1,000 psi. All other sensors are showing normal results.
I pulled the top fuel filter last night, KOEO and the fuel bowl filled up in about 2 seconds. On a side note, before I put the filter back in I noticed a small o-ring and a plastic ring inside the fuel bowl, not quite sure where they are supposed to go, so I put the plastic ring on the tower with the little stick pointed down into the castle ring and the o-ring on top of that, then put the filter back on and tightened it. Truck is still doing the exact same thing as it was doing before.
I am going to go and buy a new set of fuel filters and replace them again to see if I might have screwed up and bought crappy filters.
If anyone else knows any other possible solutions, please let me know!!!!!