I have a 2000 f250 sd with a 5.4 triton. I want to make sure I find the right replacement. Anyone familiar with this swap? I found a reasonably priced 5.4 from a 2004 expedition. Do you know if this will work and if so are there any major problems I will run into??

 

A 2004 Expedition should have a 3 valve (3V) engine, You have a 2 valve (2V) engine.Your PCM is not capable of controlling all of the parameters of the 3V engine.

 

Ok thanks,Would u happen to know if the navigator 32v is a 3rd variation of the 5.4?

 

Indeed, it is.

 

Damn, so I need to be on my toes when I look for a used 5.4 to replace the one in my truck. Would you happen to know which of the "egr" engines I need? I have only seen 5.4 with and without egr, no mention of the difference in valves. Also is the 5.4 from the f150 the same as f250?

 

The most painless way is to swap a year for same year engine. Not certain, but the F150/Expedition plant is the same as a Super Duty plant, but the electronics may very well be different.

 

Wait I'm lost, is the expedition and f150 a 3 valve and the f250 is a 2 valve and the navigator is a 4 valve?

 

Nope. The Navigators use the 4 valve head. The 5.4 modular for other applications was 2 valve from 1997 through 2004. The 5.4 engine gained its 3 valves in 2005, on.

 

Ok so the 2004 expedition engine should be the same as my 2000 f250.

 

If you use a 3 or 4 valve engine, you just need the pcm for that engine right?

 

Maybe, but probably not....
Lame answer, but things change from year to year as the species improves. Some changes are backwards compatible, some are not. One key factor: The PCM also controls the transmission.... Other sublte changes: Connectors on sensors and wiring harness, COP's, spark plugs, location of coolant pipes, accessory belt width and location, pulley widths, flex plate size and pattern, etc etc etc.
And it sounds like you want bolt in, and not an electrical engineering project to make things communicate.

I swapped engines in my '99 2V V10. What I found for the V10 modular, and I have NO idea how much is the same for the V8:
I could use the core MECHANICAL pieces from any 2V V10 engine, '97 through '04. But had to use the EGR, PCM, sensors, and wiring harness from the '99 to keep all sensors providing meaningful data to PCM.
The 3V came out in '05. At the same time, the transmission changed from 4r100 to 5r110. Using a 3V engine requires 3V PCM, which is only compatible with 5r110 tranny.
Also in '05, the SD went to CANBUS wiring to the dash and much of the truck, rather than discrete wires.

So to use 3V V10 in my '99 without lots of custom machining or electrical gymnastics, it would have required a 3V engine, 5R110 trans, PCM, ENTIRE wiring harness for entire truck, '05 instrument cluster, and god knows what else...

But at the same time, there is is a lot of mechanical compatibility. What I ended up with was keeping the '99 PCM (with custom tune!), engine wiring harness, COPS, EGR, throttle body, MAF, fuel injectors, sensors, and exhaust manifolds. Keeping all that avoided replacing connectors. But I was able to upgrade to the next generation '04 2V PI heads and intake manifold (bolt on). And used an '06 short block. Now that it's done, I can say it is a SWEET combination, but it took hours of research to know it would work! The only customization was fabbing up new heater hose.

So the easy answer is to use exact same engine from exact same year and model. After that, research is required. I am sure there are many other years and model that would fit, but don't personally know which.

 

Wow, thanks for the info. It looks like I am going to have a problem finding exactly what I need to make this swap painless. I'm not exactly sure what is wrong with the engine. I was told that it is seized from lack of oil but don't know for sure. You think as long as there isn't a problem with the block i might just be better off pulling it and getting it rebuilt? This is my first fuel injection engine swap, and the swaps I have done in the past were quite a while back in the past. If it gets too involved I hate to say it but I might just end up parting it out since im only into it a few grand and maybe get my money back and learn a lesson in the meantime.

 

If the rest of the truck is in good condition, you should be better off replacing the engine.
"Rebuilding" an engine is less common these days. Swapping in a known good from a recycler or private party, or dropping in a crate engine is the norm. Since these engines are known to last many hundreds of thousands of miles if properly maintained, snagging one out of a totaled truck with 50K miles is almost as good as a brand new engine. In some ways, better - like if you know the truck was well maintained.

Myself, I use Craigslist a lot! I found a complete (and I mean COMPLETE) engine with only 6K miles for under $3K. Came out of a motorhome that caught on fire.

 

Oh, and these trucks are very easy to work on! Excellent bolt access and LOTS of space under the hood.

 

I have only been lookin for a week or 2 and found a few in junk yards near me but with 80k miles engine was 1200 bucks. Just seemed like a lot for a used engine but I'm not use to the prices I guess. With the truck being a 2000 f250 with 90k I didn't know what the truck is even worth.