2018 5.0 V8 Engine Replacement Results?
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4th Gear
Joined: Jan 2024
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2018 5.0 V8 Engine Replacement Results?
I purchased a CPO 2018 F-150 w/5.0 V8 in early 2021. Within a few months, I had taken it to the Ford dealership three times for transmission issues and the infamous engine rattle. After three unsuccessful repairs, I took it to a different dealership and told me that the root issue is the same oil consumption problem that has been reported on many occasions for this engine.
After some back and forth with FOMOCO, they eventually approved a full engine replacement. I’ve been waiting months for the parts and hope to get my truck back sometime in Q1 or perhaps early Q2, but we will see.
My main question is this…does anyone have experience with a replacement engine for this model? And did the replacement solve the issue? I have searched high and low and uncovered many accounts of guys who are reporting similar problems, but I can’t find any accounts of how a total engine replacement has gone. I’d appreciate any feedback that ya’ll can share.
Thanks
After some back and forth with FOMOCO, they eventually approved a full engine replacement. I’ve been waiting months for the parts and hope to get my truck back sometime in Q1 or perhaps early Q2, but we will see.
My main question is this…does anyone have experience with a replacement engine for this model? And did the replacement solve the issue? I have searched high and low and uncovered many accounts of guys who are reporting similar problems, but I can’t find any accounts of how a total engine replacement has gone. I’d appreciate any feedback that ya’ll can share.
Thanks
Moderator
Joined: May 2005
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From: San Antonio, TX
Welcome to FTE, MP2010,
I think we had one member here, @smokewagun , who had an engine replaced.
The 2018-2020 engines had an issue with using oil. The problem Ford found, was that the design of the intake manifold was causing vacuum pressures that at time could be so high that it was pulling oil through the PCV and burning it through the intake valves.
Ford’s fix was to reprogram the PCM to modify the closing of a flap in the intake manifold and to advise that the engine is not low on oil until it is 2 qts down vs 1. The 5.0 has 8.8 qts of oil, so I guess Ford thinks being down 2 before topping off is okay.
In 2021, the 5.0 was updated/redesigned again. It seems the shortcomings of the 1st gen all aluminum block with plasma coated cylinder liners (2018-2020) have been addressed.
I think we had one member here, @smokewagun , who had an engine replaced.
The 2018-2020 engines had an issue with using oil. The problem Ford found, was that the design of the intake manifold was causing vacuum pressures that at time could be so high that it was pulling oil through the PCV and burning it through the intake valves.
Ford’s fix was to reprogram the PCM to modify the closing of a flap in the intake manifold and to advise that the engine is not low on oil until it is 2 qts down vs 1. The 5.0 has 8.8 qts of oil, so I guess Ford thinks being down 2 before topping off is okay.
In 2021, the 5.0 was updated/redesigned again. It seems the shortcomings of the 1st gen all aluminum block with plasma coated cylinder liners (2018-2020) have been addressed.
Cargo Master
Joined: Feb 2004
Posts: 2,101
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From: N. Illinois
Yes, that was me. Original burned oil, and the replacement engine did, as well. I was looking at the third engine and decided that I did not need the headache.
Now, after finding great results with the new redesigned engine, I’m thinking if the V8 hasn’t gone by the way if the Pterodactyl in a few years if I can retire, I might snag a V8 to tweak and have fun with in my old age. 😜
Now, after finding great results with the new redesigned engine, I’m thinking if the V8 hasn’t gone by the way if the Pterodactyl in a few years if I can retire, I might snag a V8 to tweak and have fun with in my old age. 😜
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4th Gear
Joined: Jan 2024
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Thank you both for the feedback. That's what I was afraid of. I was hoping that if I am getting a replacement for a 2018 in 2024 that the kinks would have been worked out, but if not I will probably end up selling the truck while it still has some remaining CPO and powertrain warranty left on the new engine. If not, I will definitely be purchasing an extended warranty from Ford.
Cargo Master
Joined: Feb 2004
Posts: 2,101
Likes: 60
From: N. Illinois
What are you afraid of? The existing 2018 engine, or the new replacement motor? I’d certainly not take a previous 2018 replacement, but a new 2023 engine if it mates up as a replacement? Heck yes!
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4th Gear
Joined: Jan 2024
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I am afraid of getting a 'new' motor that is just a new instance of the 2018 motor that I was already having problems with . I read elsewhere that Ford had updated the pistons/rings/block from the 2018 5.0, but that information was from 2019 so I am not sure what the latest is now. If they are able to give me a 2023 5.0 as a replacement, I would be optimistic that the kinks have been worked out. Is that even possible, though? I am not enough of a gearhead to know the implications of that type of swap.
Edit: I reached out to my rep this morning at the dealership to see if he can tell me what engine was ordered. I will report back when I have an answer.
Edit: I reached out to my rep this morning at the dealership to see if he can tell me what engine was ordered. I will report back when I have an answer.
Last edited by MP2010; Jan 30, 2024 at 09:58 AM.
Moderator
Joined: May 2005
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From: San Antonio, TX
You will get a new 2018-2020 engine. The 2021+ is different in many ways. The good news is that the new engine will likely have the latest updates for that design and the PCM will be programmed with the latest updates. I’d give it at least a good oil change cycle before you make your final decision. And remember, check the oil once a week, or at every fill up.
Do a break in oil change after 1 miles or so. Drive the engine hard (not abusive) after the first few hundred miles to really set those rings well. Get up to full temp and give it some good wide open runs, climb some hills if you can find them. Do that a few times before you change the break in oil.
Do a break in oil change after 1 miles or so. Drive the engine hard (not abusive) after the first few hundred miles to really set those rings well. Get up to full temp and give it some good wide open runs, climb some hills if you can find them. Do that a few times before you change the break in oil.
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4th Gear
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I did hear back from the dealership and he confirmed that I will get a new engine of the 2018-2020 variety, with all of the updates in place that should fix this issue moving forward. I will follow the procedure you outlined RE: break-in. I really hope it works...I love this truck and I don't want to get rid of it, but I also don't want a constant headache. It has been in the shop for almost half of the time that I've owned it.
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Moderator
Joined: May 2005
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From: San Antonio, TX
I expect you’ll have better luck than those who were getting replacements in 2018/19. Ford has had enough time to sort it out. Seeing that Ford did a massive update to the 5.0 for 2021 says a lot.
Super Moderator
Joined: Jan 2008
Posts: 40,024
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From: Maine, Virginia
Yes, that was me. Original burned oil, and the replacement engine did, as well. I was looking at the third engine and decided that I did not need the headache.
Now, after finding great results with the new redesigned engine, I’m thinking if the V8 hasn’t gone by the way if the Pterodactyl in a few years if I can retire, I might snag a V8 to tweak and have fun with in my old age. 😜
Now, after finding great results with the new redesigned engine, I’m thinking if the V8 hasn’t gone by the way if the Pterodactyl in a few years if I can retire, I might snag a V8 to tweak and have fun with in my old age. 😜
Man, I haven't seen you post in a minute! You doing OK? I see you still have the diesel, is it treating you well? As I remember, you drive a ton of miles.
Lead Driver
Joined: Sep 2006
Posts: 7,907
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I purchased a 2018 CPO with 28k miles that later was found to pass oil.
Research found the probable Root Cause and was able to clear it myself without all the hassle of an engine replacement.
No dealer intervention of any sort.
The Fix cost a whole $10 and now at 88k miles with a perfect 5L engine.
Why? The Root Cause would be a rarity in an engine but very costly for the mfger to fix by replacement as you found out getting the same result over again with a replacement that has the same fault.
Shish, the mfger does not want to admit to the fault because it can't be fixed very easy with standard procedures.
Engine replacements cost about $15,000.00 a shot for 5L and now out of production as a Gen 3 engine.
Good luck.
Research found the probable Root Cause and was able to clear it myself without all the hassle of an engine replacement.
No dealer intervention of any sort.
The Fix cost a whole $10 and now at 88k miles with a perfect 5L engine.
Why? The Root Cause would be a rarity in an engine but very costly for the mfger to fix by replacement as you found out getting the same result over again with a replacement that has the same fault.
Shish, the mfger does not want to admit to the fault because it can't be fixed very easy with standard procedures.
Engine replacements cost about $15,000.00 a shot for 5L and now out of production as a Gen 3 engine.
Good luck.
Lead Driver
Joined: Jul 2004
Posts: 6,951
Likes: 512
From: Foothills, CA
I purchased a 2018 CPO with 28k miles that later was found to pass oil.
Research found the probable Root Cause and was able to clear it myself without all the hassle of an engine replacement.
No dealer intervention of any sort.
The Fix cost a whole $10 and now at 88k miles with a perfect 5L engine.
Why? The Root Cause would be a rarity in an engine but very costly for the mfger to fix by replacement as you found out getting the same result over again with a replacement that has the same fault.
Shish, the mfger does not want to admit to the fault because it can't be fixed very easy with standard procedures.
Engine replacements cost about $15,000.00 a shot for 5L and now out of production as a Gen 3 engine.
Good luck.
Research found the probable Root Cause and was able to clear it myself without all the hassle of an engine replacement.
No dealer intervention of any sort.
The Fix cost a whole $10 and now at 88k miles with a perfect 5L engine.
Why? The Root Cause would be a rarity in an engine but very costly for the mfger to fix by replacement as you found out getting the same result over again with a replacement that has the same fault.
Shish, the mfger does not want to admit to the fault because it can't be fixed very easy with standard procedures.
Engine replacements cost about $15,000.00 a shot for 5L and now out of production as a Gen 3 engine.
Good luck.
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
In short, the Plasma Cylinder application is faulty and results in to much surface Porosity that holds >>> too much oil <<< the Ring Pak can't handle.
The outside fix is to use an oil additive MOLY Disulfide M0S2 off the shelf and give it a chance to fil in the Cylinder Porosity.
One can per 7 qts. 5w20 and 1 qt. 5w30 to help out. Repeat this at each oil change to be sure. Shake the can first and Flush that Moly out good so none is left in the can, each time..
Eventually it also quiets the engine noise a noticeable amount, as a bonus.
Good luck.
Super Moderator
Joined: Jan 2008
Posts: 40,024
Likes: 1,519
From: Maine, Virginia
I had an Audi repair facility on my route that always bragged about the use of liquid moly but their application had to be heated before it could be used. Is this similar to the Moly that's stated above?