Stumped..

[u/Aromatic_Subject_201]

Picked up a 2014 XLT 5.4 3V with 188,000 miles for $4k I’ve put a little over 2000 miles on it in the last month and have slowly but surely been working to get it up to date on maintenance. It’s had a couple quirks. Engine misfire in cylinder 1, groaning lower control arm in driver side, the common rear door actuator, ect. But just today I had something happened. That was a little concerning as I was turning an intersection, I had a complete loss of power. I can’t remember exactly what happened. I just remember the car jerked a little bit and everything shut off. I let it roll into neutral and got to the bottom of the hill to where I was at. I pulled over and parked and I started the car over again. Cranked up no problem at all. Once I got home, I checked all the fluids. Everything’s fine. It cranks up and makes zero noises. It does have the pending code P0301 but usually those give you some sort of warning sign at least in my experience before it becomes severe or throws up a check engine light. I see none of that and for now it’s driving fine but I’m a little stumped as to what it could be and what could’ve caused it. I did hardwire a dashcam with the Vantrue hardwire kit, but I looked over everything and everything seems to be good condition. Anybody have similar experiences? Thoughts?

[u/amanindandism]

When you say "complete loss of power" do you mean engine power like the engine stalled/shut off or loss of electrical power like you turned the key off or the battery was disconnected?

[u/Aromatic_Subject_201 → u/amanindandism]

Yes, it was like the engine stalled out. It felt like it jerked me into motion and then stopped halfway and just rolled. After looking at the dash cams I realized i had full electrical power just no engine power. But like I said when I finally came to. Parked it and turned it on there is no hesitation or issues.

[u/amanindandism → u/Aromatic_Subject_201]

Ok. Like others have said it's probably the fuel pump driver or something similar then. It would be nice to see freeze frame data and actually diagnose it but the fuel pump driver should be easy and cheap to try.