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Motor swap

(1999 Ford Expedition)
in North Fort Myers, FL on April 18, 2015
I took the 4.6 out of my expedition and put a 4.6 out of a mercury cougar and it will turn over but will not run
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Popular Answer
on April 18, 2015
Swap ALL componets from original engine to replacement engine necessary to make it run!.. Look at both... What's different?.. Make everything the same as it was..... IF it ran before this (?)... Unless you've damaged something else and engine IS compatible, that's gotta work!!.. Got ignition spark and fuel pressure?
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