Least problematic v8 from this generation?
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Mountain Pass
Joined: Oct 2012
Posts: 124
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Least problematic v8 from this generation?
I had an 08 f150 with a 5.4 3 valve. Kept up on regular maintenance with it but one of the tensioners broke when it was about -10 the one day and the rest of the motor went shortly after. I've been thinking of getting another truck from this generation and was wondering which engine is generally the least problematic. I won't be towing so I don't necessarily need the most power but the 6 cyl isn't going to do it. Kinda thinking of looking for something rust free from the south and just replacing the engine anyways with a warrantied reman unit. Are there any that address the mod motors weaknesses like the phasers, tensioners, plugs etc? Or would i have to do all that work on a new motor before putting it in? Thanks.
Hotshot
Joined: Feb 2004
Posts: 10,764
Likes: 2,590
From: The Shenandoah Valley
Was the broken tensioner plastic or metal, AM or OEM? I've seen 5.4-3v engines run over 300K. They like clean oil though.
My '07 is @ 87K and hard to hear run. Something happens, if possible, will get it fixed.
My '07 is @ 87K and hard to hear run. Something happens, if possible, will get it fixed.
Last edited by tbear853; Dec 9, 2025 at 04:53 PM.
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