In my experience Fords seem to just keep running while being treated by crap. Must be all the "behind-the-times" engineering. I wish they had quite "engineering" on F-150s in the '70s. I could keep one of those running from now 'till doomsday. You get into the '80s...they start putting crap in them I don't understand and don't know how to work on. But still pretty good, run 'em every darn day trucks. Of course, full disclosure, never owned one that wasn't ~10 years old, so don't really know what they are like now.
in the 70's, ford used the duraspark ignition systems. they sucked. in the 80's they used EEC3, and MCU, then EEC4. EEC3, and MCU sucked. EEC4 was actually a VERY good engine management system. most hated it, due to the difficulty in diagnosing it. they thought, that since ford didn;t set it up to give datastream information, that it was a poor system. it was actually lightyears beyond the gm or chrysler control systems. and using your head, and diagnostic equipment properly, was VERY easy to diagnose. todays techs are spoiled with the control systems we have now.
ever since the EEC4 system, fords control systems have had the ability to adapt, or learn. gm and chrysler systems did not. that's what the PROM chip was in the gm computers. it was the programming.(i think)
ford computers didn't need this. i've replaced many many more gm computers, than fords and chryslers combined.
now on the other hand, fords have their common problems, like the DPFE sensors, and sticking IAC's,