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Old 04-04-2009, 05:34 PM   #1
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Default Engine replacement 2004 F150

Well, after 78,000 miles, it looks like I will either have to get my F-150 rebuilt or buy a new one.
My question is, will the 05-09 engines work in the 04? If so, where can I get them besides Ford.
Thanks!
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Old 04-04-2009, 05:35 PM   #2
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More info
5.4 Trit, 2004 F150 Lariat
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Old 04-04-2009, 08:30 PM   #3
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I just got mine back last week with a new engine also. My original one had no compression in 4 cylinders. Have the Ford dealer install a new one if you got the $$. I paid $6330 for the new engine with a 100k mile warranty and new catalytic converters. Mine died at 86k miles.
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Old 04-04-2009, 11:46 PM   #4
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wow yall must have had bad luck or been hard on em or somethin, ever ford i have ever known personally has gone at least 150,000 miles or more without any work, i know ford isnt perfect and will screw one up every now and again but i thought at least 100,000 miles was just a expected norm

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Old 04-05-2009, 09:05 AM   #5
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Can you explain what the premature failure was? This is an early failure.
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Old 04-05-2009, 03:28 PM   #6
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i agree this is a very early failure im shocked! but every motor company has there problems! but what did happen?
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Old 04-05-2009, 09:19 PM   #7
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yea i just got mine back i got a used motor with 40,000 miles and a 6month unlimited mile wart. i got it from benwood auto parts.com 1,850.00 shipped to my local dealers door they charged me 1800 to install .mine is a 5.4 24valve trashon they have many prob.
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Old 04-05-2009, 09:21 PM   #8
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more the year 2004 vin code 5 before the motor new lifters ,twice
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Old 04-05-2009, 09:23 PM   #9
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any one know how they run without converters or where to get new ones cheap
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Old 04-05-2009, 09:49 PM   #10
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Click the image to open in full size.
I had wondered if anyone else on this board had ever had to replace an engine in a '04 and up F150.


When the 5.4L started running rough with the engine lamp on I took it to my mechanic to replace the plugs. I figured at 102k that it was about time. It took quite a while to get the plugs changed [those familiar with the problem know why]. But afterwards, it still ran very rough. A compression check confirmed that the number one cylinder was “dead.”


A knowledgeable friend convinced me that we could change the engine and save a few thousand. Several times along the way I wondered about the sagacity of that decision. But now the new engine is in, and while it is slow-going [sometimes it is just too cold to work, especially after a long day] I revert to a philosophy of “one bolt at a time.”


What I found when I took off the valve cover was a spring and rocker laying out of place. What caused it to fail? I don't know. It wasn't from lack of oil change maintenance or abuse. When the spring failed the valve fell down and was struck by the piston.


I have learned a lot along the way. If anyone is faced with a similar dilemma and would like an opinion about whether to do the work themselves or have someone do it for them, please feel free to contact me.
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