So there I was, stuck on the side of I-80 with a 6.7 Powerstroke that just quit

It was near Rawlins, Wyoming, middle of the night, hauling a flatbed. The truck just died, no power, no codes flashing. I had my scan tool, but it was showing nothing. I was ready to call a tow, which would have cost a fortune. Then I remembered something my old foreman told me about the secondary fuel filter housing on those engines. I popped the hood, shined my light, and sure enough, the water-in-fuel sensor housing had a hairline crack you could barely see, letting in air. I didn't have the part, but I had some fuel-resistant sealant tape in my box. Wrapped it tight as a bandage, primed the system, and it fired right up. Got me to the next truck stop. Has anyone else had a no-code shutdown from something that simple? What's your go-to roadside fix for a sudden air leak?

3 comments

3 Comments

hollym121mo ago

Blakefox makes a good point about the control module, but a tiny crack on that sensor housing can absolutely cause a no-start without a code. It's a physical air leak, not an electrical fault the computer always sees. The sensor itself might be fine, so it doesn't trip anything. Your fix with the tape was smart, OP. Seen it happen a few times, and it's a real headache. Iris441, your buddy's situation sounds similar, but the fix depends on where the air is getting in.

blakefox2mo ago

Gotta disagree, that sensor housing crack usually throws a code in my experience. Seen more no-start issues from a bad fuel pump control module on those, honestly.

iris4412mo ago

Totally right about the fuel pump module. Had a buddy's truck do the exact same thing last month, just dead in a parking lot.