97/98 expy swapping to a 03 motor. need info

Nightmare99 · Sep 19, 2016

so I have a 97/98 eddie baur 4x4 with a 5.4l in it. the motor was bad when I got it and upon disassembly to rebuild/build up it came to attention that the crank had turned the bearings into glitter and the oiling system dispersed this metal glitter throughout the Entire motor. so it was my decision to save headache and trash motor and get a differebt one. I found a very decent 5.4, vin L, out of an 2003 expedition. now my question is what am I all gonna need for this swap. I already understand I need to have it tuned, but besides that will it all bolt right up?? any and ALL INFO APPRECIATED

DesertFordRat · Sep 19, 2016

Compression/Oil pressure test?

Nightmare99 · Sep 20, 2016

on the new or old motor?

Transporter · Sep 21, 2016

Nightmare99 said:
on the new or old motor?

If you are replacing the motor, obviously any used motor should be compression tested. Are you buying a junkyard motor or a crated new/re-manufactured engine?

If you are replacing the ruined engine, why would you need to compression test it? As you are considering it junk now.

Nightmare99 · Sep 21, 2016

just trying to clarify as peole keep asking and thinking its easier to rebuild old motor,. old motor is no more, and I know the basics of buying used motors, far from my first enhine swap rodeo, just wondering the year difference issues

08T1 · Sep 25, 2016

Newer engines had knock sensors added. Not exactly sure on the date added. You would need to address that. Maybe just run a bolt through the hole. Maybe some electrical connectors changed? But should be easy fix with older style connectors.
Your ecu should be fine.
I don't believe any accessories changed locations...?
I really do believe it should swap in very easily.

Good luck!

CJ

1955moose · Sep 25, 2016

If your going to swap in newer engine, make sure you get a complete motor. All the brackets, sensors, and oh yes the computer from that vehicle. The last thing you want is to chase down parts at a wrecking yard or dealer because your first gen ones don't fit. If you know any of the mechanics at your dealer or better repair shop, it wouldn't be a bad idea to pick their brain. Once In while you get some valuable info that might help.

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Transporter · Sep 25, 2016

I don't know enough about the engine that came out versus the engine going in. But in the good old day, engine swaps were easy. Remove one motor, install the other motor, now not necessarily in the correct order, bolt up Tranny, ground the motor, positive to starter, 8 plug wires, connect exhaust, connect fuel line, connect radiator lines, check the other few miscellaneous connections, start motor, checking and adjust timing.

Today there is all the EPA crap, does the ECU match up, all required necessary sensors available, and on and on after all the basic stuff from above was done.

1955moose · Sep 25, 2016

Why do you think all the classic cars are making such a huge comeback. It not only brings back all the sentimental times, but also gives a car or truck that we can work on. Not to mention brag about and start up new Friendships. I've had my Expedition 2 years and never had anyone come up to me and start talking about my car. Ah the good old days.

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tcwaltz · Sep 27, 2016

I would think there would be some differences with the wiring harnesses and the computer.

97/98 expy swapping to a 03 motor. need info

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