tahoe.mkIII
...
Nope, just nope. That 5.4 is indeed just junk. Was yet another modern engineering mistake. Two piece spark plugs, mile long timing chain, twin cams, terrible exhaust manifold design that rots out and camphaser crap that doesn't hold up over the long haul. 1991-1997ish Ford trucks are all I'd buy and have bought and all I'd recommend. Although Ford has acknowledged that 5.4 & 4.6 were mistakes because now they've built a 7.3 or 7.4 gasser and guess what? It's two valves per cylinder, single cam in block and doesn't have a mile long timing chain. Perfect for a truck and a true time tested design for over 60 years now. Just because it's "old" doesn't mean it's obsolete.
I agree with this statement. Had a f350 utility with a 5.4 in it for work. Total garbage and the motor is a huge pain to work on. I vote big thumbs down on those things