I have a 201 F350 7.3L V8 4x4 crew cab with 159,*** miles

Ok so it all started 2 days ago, went out to start the truck it started loped bad and shut down, I got it started after about 4 times by holding my foot on the gas pedal started up, loped bad for about 5 seconds then smoothed right out. Service Engine Soon light came on and is still on, and is the only light thats on. When this happened I figured right away that I had gotten the mixture of "black diesel" (used oil that has been filtered) to regular pump diesel to strong, so since it was down a 1/4 tank I took it right to the pump and filled up and dumped in a can of seafoam.

It ran OK but not great, but I figured it just needed to work itself out, so after driving it more that day I put in another 1/4 tank of diesel. ran alot better than.

Than this morning I got in the truck and started it up and it feels like it has very little power, I drove it into town filled it up with another 1/4 tank or more of diesel, dumped in B12-chemtool ( I also run Diesel Kleene with every tank) then I drove it down the main street and from 38-45mph it shakes like all h*ll's about to break loose! SO i went to autozone, bought a new fuel filter and it made little to no difference (also hooked it up to their scanner and pulled no codes). Also it revs up high (I know diesels rev high but this is higher than normal) and then feels like it slams into the next gear, and the overdrive button is on (its NOT lit up) and I even tried turning it off to see how it did and no difference.

I have had no problems with black diesel before today, engine has been running smoother than ever since I started the black diesel, now I am worried that I have really screwed something up and I have been off work (not by choice) for 4 weeks so don't have alota money to "experiment" with.

ANY help would be GREATLY appreciated!

Thank you in advance

 

Sounds kind of like the UVCH to me. Definately check your fuel filter, too. When was it changed last?

Also, keep in mind that the generic OBDII scanners generally don't work on the PSD's.

 

$.50 Mod For UVCH Pics and Rocker Arm Torque Specs:
50 cent mod - Ford Truck Enthusiasts Forums

7.3 Diesel Powerstroke misfire runs rough code P1316 injector wire harness connection - YouTube

 

I changed the filter 3,000 miles ago and again today (because I thought that was the problem) I have read some on the uvch and I had not heard of anyone complaining that their truck was shifting hard? If I had I would be out there pulling valve covers right now. But I am worried that I will do all of that and that I will still be in square one. Your thoughts?

 

Unless the tranny light is blinking I doubt it has anything to do with your tranny, sounds like it's very much engine related.

 

https://www.ford-trucks.com/forums/1...l#post10910462

 

Moved to the 1999 - 2003 7.3L Power Stroke Diesel forum.

 

So it has a tranny light that will come on if theres a prob?!? dang thats awsome, ( lol I am new to this truck...kinda...bought it from my dad 3 weeks ago) This truck is high tech compared to my 1997 GMC 1/2 ton lol

 

If there is a tranny code, the "O/D" light on the shifter will blink.... that's the "tranny light."

 

I was looking for that link.. couldn't find it.. Thanks.. I bookmarked it this time

 

Are there any tricks to removing my valve covers? Figured I would ask before I tried.

Also I tried to check OHM's but I cannot get both the prongs on the right prongs and look at the OHM reader at the same time...that part sucks....so i figured from what I have read I will just give it a go and at the very least I will be doing preventative maintenance but I REALLY hope that is not the case. I need this truck back on the road.