Hey, so this may be a long story but I am in desperate need of help.
We have 2 powerstrokes right now that both have issues. We started with a 7.3 that worked great but the issues got to be so much we figured we would buy a newer one. We got a 2006 f350 for what seemed like a deal. Worked flawlessly for almost exactly 1 year. We did regular maintenance and oil changes, fuel filter changes and such but nothing big. Then all the sudden it started smoking a bit, then more, then more. Then it started "knocking" but not like a rod knock. From what I've found I think it was an injector knock, and the color of the smoke would make me think that that is correct. Smoke is a dark grey to black and leaves a ton of soot on the ground. It was definitely over fueling and causing the smoke. At least I'm pretty sure. I pulled the egr
sensor and it was sooty, but it seemed to move and seal so I cleaned it all up and put it back in. Didn't seem to make a difference. It's our work truck and we needed it so we drove it a few times when we probably shouldn't have. The smoking got worse until we ended up at a crank no start situation. Ended up getting a bluetooth scanner and torque pro to figure some things out. When doing that I found the icp
sensor was bad. I unplugged it and the truck started right up, ran rough, smoked more than ever, then killed. I figured I might try to do a buzz test with car gauge pro but lo and behold it won't connect. Ordered another Bluetooth OBDII dongle Figuring my cheap one probably didn't cut it. Just got the new one and plugged it in and still CGP won't connect. But torque works fine. In CGP it will say device disconnected when trying to connect and load the ford pids. Now, I'm getting pissed at this point lol, I try connecting any way I can and nothing unless I tell it to not scan. But when I do that it doesn't load the stuff so you can do a buzz test. I've seen people do buzz tests on YouTube with CGP. Most of them are on the 7.3, but a few on the 6.0. However, on one of the reviews for the app someone said they couldn't connect to the 6.0 and the maker replied by saying it doesn't support all makes and models. So now I'm confused and mad. I go to my dad 96 grand caravan and CGP connects right away with no issues. Both torque(with Bluetooth dongle) and my Innova scanner will both connect fine to the truck and read codes, and torque will run in real time. I checked everything on the FICM
with torque and everything was within parameters. That makes me think it's an injector, or multiple, causing this over fueling but it's like I can't catch a break with these damn scanners/apps. I do not have the funds to buy a more expensive scanner, nor take the truck anywhere as when it does run it makes a James bond esce smoke screen behind me.
I saw on another thread it could be one node causing communication issues maybe? But from what I have read that would mean it just flat out wouldn't connect or read codes, which is not the case.
Also, I've been working on diagnosing this damn thing for well over 5 months at this point, so if I've forgotten to mention something I've done, that's why. But I need some advice at this point.
I'm pretty sure it's one or more injector (which sucks $ wise) because I did the bubble test into the secondary fuel filter reservoir and saw bubbles under cranking with the fuel pump fuse pulled out. But I want to know which one so I don't have to blindly put in injectors.
Also, after trying to connect with Bluetooth crap for so long and having the key on I think the cylinder might be filled with fuel now. But I'm unsure. But now it won't even crank over, even with the battery charger on. It's like it's hydro locked which has me worried.
Please and thank you for the help. That's pretty much everything I can remember currently, but I know I've probably forgotten something.