2025, which engine?
Senior Member
Joined: Jan 2020
Posts: 3,232
Likes: 1,676
From: Somewhere on the south side of Heaven.
I wish I hadn’t heard about these.
The exhaust manifolds are a primary fatigue failure point due to thermal cycling between the aluminum cylinder head and the cast iron manifold (or in this case, the manifold is integral to the aluminum head and bolts up to the iron turbo housing). Developing cracking in the manifolds is common across many engine families.
Ford’s bright idea to run coolant through the manifolds – done for the sake of faster warm up for cold start emissions, not turbo protection – means that when those cracks form the symptom isn’t the harmless ticking that you get on any other engine but instead a coolant leak into the exhaust stream where it will shortly poison the cats and O2 sensors.
The cherry on the top of this idiotic design is that what ought to be a wear item that’s a couple hundred bucks and can be swapped out in an afternoon is a complete head replacement at near $4,000 for the part and 25 book hours to put it in.
The exhaust manifolds are a primary fatigue failure point due to thermal cycling between the aluminum cylinder head and the cast iron manifold (or in this case, the manifold is integral to the aluminum head and bolts up to the iron turbo housing). Developing cracking in the manifolds is common across many engine families.
Ford’s bright idea to run coolant through the manifolds – done for the sake of faster warm up for cold start emissions, not turbo protection – means that when those cracks form the symptom isn’t the harmless ticking that you get on any other engine but instead a coolant leak into the exhaust stream where it will shortly poison the cats and O2 sensors.
The cherry on the top of this idiotic design is that what ought to be a wear item that’s a couple hundred bucks and can be swapped out in an afternoon is a complete head replacement at near $4,000 for the part and 25 book hours to put it in.
Senior Member
Joined: May 2015
Posts: 2,169
Likes: 640
From: Garland, Tx
I wish I hadn’t heard about these.
The exhaust manifolds are a primary fatigue failure point due to thermal cycling between the aluminum cylinder head and the cast iron manifold (or in this case, the manifold is integral to the aluminum head and bolts up to the iron turbo housing). Developing cracking in the manifolds is common across many engine families.
Ford’s bright idea to run coolant through the manifolds – done for the sake of faster warm up for cold start emissions, not turbo protection – means that when those cracks form the symptom isn’t the harmless ticking that you get on any other engine but instead a coolant leak into the exhaust stream where it will shortly poison the cats and O2 sensors.
The cherry on the top of this idiotic design is that what ought to be a wear item that’s a couple hundred bucks and can be swapped out in an afternoon is a complete head replacement at near $4,000 for the part and 25 book hours to put it in.
The exhaust manifolds are a primary fatigue failure point due to thermal cycling between the aluminum cylinder head and the cast iron manifold (or in this case, the manifold is integral to the aluminum head and bolts up to the iron turbo housing). Developing cracking in the manifolds is common across many engine families.
Ford’s bright idea to run coolant through the manifolds – done for the sake of faster warm up for cold start emissions, not turbo protection – means that when those cracks form the symptom isn’t the harmless ticking that you get on any other engine but instead a coolant leak into the exhaust stream where it will shortly poison the cats and O2 sensors.
The cherry on the top of this idiotic design is that what ought to be a wear item that’s a couple hundred bucks and can be swapped out in an afternoon is a complete head replacement at near $4,000 for the part and 25 book hours to put it in.
Last edited by tsigwing; Dec 17, 2025 at 11:10 AM.
Senior Member
Joined: Dec 2022
Posts: 608
Likes: 274
From: From Down River MI. Now Boulder City, NV
seems like Everybody wants or desires to be an expert, can they tear down an engine and do a repair, I think not in most cases.
It all comes down to real time experience with the engine your truck has and how you drive it
5.0s , I've owned [3], and don't particularly care for that motor, all of mine made strange noises early on.
I've owned [6] EB motors now with no trouble and they make more power when you need it.
If you're not towing regularly or on the throttle heavily [like myself] there is not heavy boost happening, easier on the turbos.
I pulled a 10k lb 5th wheel for 3 years with a 2016 3.5eb. you can't do that with a 5.0
I'm not going to argue with a guy that thinks the 5.0 is the greatest motor in the lineup, because you can't change anyone's mind anyway.
to each is own, buy what you prefer and if you have to ask which motor to buy, you probably have no business buying a truck.
Do the research, check the engine and towing specs and place the order for the truck you desire
It all comes down to real time experience with the engine your truck has and how you drive it
5.0s , I've owned [3], and don't particularly care for that motor, all of mine made strange noises early on.
I've owned [6] EB motors now with no trouble and they make more power when you need it.
If you're not towing regularly or on the throttle heavily [like myself] there is not heavy boost happening, easier on the turbos.
I pulled a 10k lb 5th wheel for 3 years with a 2016 3.5eb. you can't do that with a 5.0
I'm not going to argue with a guy that thinks the 5.0 is the greatest motor in the lineup, because you can't change anyone's mind anyway.
to each is own, buy what you prefer and if you have to ask which motor to buy, you probably have no business buying a truck.
Do the research, check the engine and towing specs and place the order for the truck you desire
Community Team
Joined: Jun 2016
Posts: 8,974
Likes: 7,504
From: Vermont
Even if that was a typo and you meant 2021, you posted nothing proving anything. Where are the links to this, photos, shop paperwork.
On the contrary, there is in fact a post on here about a 2015 2.7 with over 465k original miles. I’ll actually go ahead and post a link: https://www.f150forum.com/f118/465-0...-2-7-a-389552/
Not sure why people like you try so hard to badmouth the turbo stuff.
No fart cans allowed
Joined: Mar 2016
Posts: 4,341
Likes: 2,366
From: MO
Junior Member
Joined: Aug 2017
Posts: 16
Likes: 7
From: Kennebunk Maine
My 2.7 turbo runs just fine at 133,000. It does eat spark plugs about every 10,000 since it pasted 100,000. The glass insulator just breaks apart and the engine runs very rough.
Has anyone else had this problem with the 2.7 turbo? My truck is a 2016 F150.
Has anyone else had this problem with the 2.7 turbo? My truck is a 2016 F150.
5 Year Member
Joined: Oct 2011
Posts: 4,030
Likes: 1,087
He must have been imagining since like others said the 2.7 Eco Boost didn't come out until 2015 in the F-150's like others have said!! You might want to check Your facts and learn how to spell before making Yourself look like a Fool on the Internet!!