7.3l Misfire issue - I got this info and link from Iron Man here on the forum

[Rock Taxi]

I was working out while watching Utube and the TFL guys posted a video on the Utube. Misfire on 1 or more cyclinders. It’s the coil wire. It’s causing a lot of trucks problems and the part is hard to come by. The video is only 3 hours old. But here’s the info for brothers with 7.3L.

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwj9kIa_5drrAhUC-6wKHeQXDT0QtwIwAHoECAUQAQ&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DvslUkhTnkB0&usg=AOvVaw1GL_MLichDJZeKiLWQwXQc

 

[TexasTremor]

I sit and wait until I decide to be diesel free ..but looks like I am going to have to wait a awhile before I jump back into the the first gen 7.3 ..just a matter of time .?

 

[Rock Taxi]

I get year one jitters - I have them on my 6.7 too, but no issues yet there. I don't know if I would read too much into it at this point.

Sure, a faulty coil wire can bring you down for sure, but it is really not a criticism of the motor itself. It's kind of like the reported camera issues. I bet you could get an aftermarket Excel wiring DIY kit and make 8 wires for 50 bucks as backups. I also imagine Ford will be all over this, as the cost is relatively low for customer reviews, versus problems with axles, transmissions, engine internals, etc....

Ed

 

[jhblaze1]

most likely a bad batch of plug wires from a supplier. Usually the case with these sorts of things and probably not something that will be a long term issue, I'd bet.

 

[Driftwood]

Hope this is an isolated issue, or a bad batch of plug wires, as Jhblaze1 stated.

 

[ECHO-24]

This happened with the Mustangs also, I ordered 4 wires to have on hand. Cost $15 from the dealer, but they are back ordered until mid October..

 

[Vigilance247]

This has happened to a few of our fleet F150’s with the EcoBoost but I don’t have details on the year or engine size.

 

[elkhunter]

The scary part is that some of the new vehicles with low mileage can have the problem. I think most of us have to have the reliability. I'm a bit nervous now. I'll be watching for updates on this.

 

[Bruno]

TFL just did a video on this exact issue. Could be worth a watch if you have a 7.3. Seems like it’s going to have to be a common fix.

 

[oursomedayisnow]

Well that sucks, looks like a spare set of American Made wires from Summit Racing would be wise