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2 valve swap into 04 3 valve help?

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Old 06-18-2018, 01:00 PM
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2 valve swap into 04 3 valve help?

Ok guys I’ve been in the game long enough to know this isn’t a easy swap but I have a brand new 5.4 2 valve engine still in the ford crate year 02 from ford. It’s been stored nicely. Anyone know of anything that’s been manufactured for such swapping?
 
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Old 06-18-2018, 07:37 PM
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Yea - the PCM for a 5.4 2v.. Go to a wrecking yard and jerk you a PCM out of a truck with a 5.4 2 valve and reprogram your keys and work through all the other sensor differences in the wiring harness.
 
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Old 06-18-2018, 08:59 PM
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Check your local laws, as well. If this vehicle is driven on public roads, it is technically illegal to swap an older engine into a newer vehicle, due to emissions. If you are in a state that checks such thing thru an annual inspection, this would be problematic.

As a previous reply stated, these are two totally different wiring harnesses, pcm's, sensor sets, etc. This is a lot of spaghetti to untangle and sort thru. It is not a common or recommended swap, so aftermarket support is probably nil.
 
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Old 06-18-2018, 09:37 PM
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3 valves may be pretty unreliable but a 5.4 2v can't pull a greased string out of a cat's ***.

deal with the 3v. Sell the 2v and buy a Jasper 3v
 
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Old 06-19-2018, 06:39 AM
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My 3v has 240.000 and is worn. 3600$ full reman LB is not a option as truck isn’t worth it. Woods truck and camp bound is my thoughts for it. From my knowledge the 2v can be used on top end of 3v block with codes of course even after programming and will communicate with trans properly so throttle cable install and a few others. Any thoughts? I do have a c6 and t-case but that’s a different story.
 
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Old 06-19-2018, 06:41 AM
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Well the 2v I have is still in crate from ford 2002 and is 100% complete plug n play and for sale. Need it gone.
 
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Old 06-19-2018, 09:31 PM
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That's the best choice. And try to find a 3v for your '04 if it can't reasonably be fixed. Hopefully you can get all, or more, money out of your 2v powerplant.
 
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Old 06-19-2018, 11:42 PM
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Honestly I thought this forum was to help us guys out and be open with suggestions but so far I’ve got nothing but childish reply’s either because ya all have $$$ to throw out or your just unhappy men with a boss at home you can’t talk back to? Either way I’d rather wipe my *** with your face than ever come back to this forum. Yup ya all are just way to good for me HA. HA ha HA hA HA gfy’s and DONT BUY FORD IF YOU DONT LIKE EM !! COMMON SENSE!!!!!!!!!!!!!!!!
 
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Old 06-19-2018, 11:44 PM
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YUp hits the SPOT doesn’t it 👍 PO 🖕
 
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Old 06-20-2018, 08:19 AM
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WELL - EXCUSE THE HELL OUT OF ME. I've participated on this forum for a long time and received lots of good advice and tried to provide some when I feel qualified in some way, taking care not to throw out snap / smart-*** / stupid / wrong advice just to add to the post count. One area I've worked hard to acquired some extra knowledge in happens to be the OBDII system and diagnostics through the use of an inexpensive Bluetooth scanner app (Torque Pro). I know the '04 3v accomplishes EGR effect by retarding cams and the O2 has an EGR valve with all the necessary control mechanism / logic. I also know the '04 PCM has and maintains a number of Failure Mode Effect Management (FMEM) flags for accommodation of failed systems. These FMEM flags implement 'POWER LIMITING' logic in the PCM software.

This is the reason I suggested it would take a PCM change. THEN, what about harness connections for the EGR Valve -- etc. Otherwise, the '04 would certainly wind up in EGR MFEM mode and you would be an unhappy Ford owner. Of course what I did not know THEN, is you must basically be an unhappy person all the way around. So, go in peace. Adios! Or to use your own term PO.
 
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Old 06-20-2018, 09:49 PM
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Please Nancy, tell us how you really feel. Dont hold back
 
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