Exist any 3.5 ecoboosts with heavy mileage? I plan to get 200k more miles out of my 16 w 66k. Although I completed exhaust manifolds, it was still a fantasy. I’m hoping there are several 200k+ 3.5s available. Salutations!
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I have 170,000 miles on my 3.5 and have already had to replace the exhaust manifold twice. other than that, though, it’s been an absolute champ. That engine is my favorite!
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2014 Ecoboost 3.5 with 213k miles. operating at a high level.
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Well done! My brother-in-law purchased a 13 3.5 for around $180,000 and is quite happy with it. hasn’t encountered any issues @Nerdia
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Head gaskets appear to be a very unusual problem with them. I wonder if the repair was poorly done.
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No, I don’t believe that. The few times I’ve used them, they’ve been a really good shop (I just take my cars there). The exhaust manifold has a design defect that causes a leak near the manifold’s end on the passenger side. My research revealed that, while it seems to be rather widespread, the problem primarily affects cars that are frequently towed. After we fixed it a second time using an upgraded, non-ford manifold design with extra attachment points, everything has been running well ever since. Even yet, the original repair took four years to fail, and I’ve only been working on this one for two years.
The secret is to use high-quality synthetic oils and to change them frequently. Moreover, coolant changes as necessary
I have a 16 with 175k. Exhaust manifolds only main issue.
I’ll repeat what I’ve stated a million times. The claim that the 5.0 is the world’s most dependable engine is made by a vociferous minority alone. Perhaps a million more Ecoboosts than 5.0s are sold by Ford. Based only on statistics, there is a greater likelihood of an error occurring with a 3.5 or 2.7. These three are all excellent motors.
Which year is yours? Have you performed phaser, turbo, or any other typical costly repairs?