4.6 swap problems | Ford Explorer Forums

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4.6 swap problems

pwcracer

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Joined
March 20, 2013
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Year, Model & Trim Level
2002 Ford Explorer V8
I swapped in a 2003 4.6 engine in my 2002 4.6 Explorer.
Everything went well, but it won't run.. here is what I have

The replacement motor will not run by itself. It has fuel pressure and spark but fuel won't go through the injectors. If I pour fuel in through a hose it will run. I tested the wiring to the injectors. It's getting the signals to open them but they are inop. I haven't swapped the old injectors yet, but this doesn't make sense to me.
 












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