View Poll Results: Ecoboost reliability poll
No issues under 100,000 miles
7
63.64%
No issues over 100,000 miles
1
9.09%
Issues under 100,000 miles
2
18.18%
Issues over 100,000 miles
1
9.09%
Multiple Choice Poll. Voters: 11. You may not vote on this poll
How many miles? Reliability?
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Super Moderator
Joined: Apr 2004
Posts: 34,530
Likes: 2,833
How many miles? Reliability?
You may take the poll or post up your results.
Please note if it was handled in warranty, or if it was a modified engine etc, and please note your engine size and if in a truck or other vehicle.
You can vote twice. No issues under 100k, but issues over. Or issues under and over, whatever you had.
Please note if it was handled in warranty, or if it was a modified engine etc, and please note your engine size and if in a truck or other vehicle.
You can vote twice. No issues under 100k, but issues over. Or issues under and over, whatever you had.
Last edited by 85e150; Jul 2, 2021 at 05:07 PM. Reason: add info
5th Wheeling
Joined: Jun 2021
Posts: 47
Likes: 16
2014 MY. I've had lots of warranty work done, either base warranty or ESP warranty.
36,204 - Throttle Body; 53,253 - 2 Turbos & Timing Chain; 70,850 - Throttle Body; 88,595 - @ Exhaust Manifolds; 90,106 - Transmission Valve Body; 96,400 - Rear Pinion Seal
36,204 - Throttle Body; 53,253 - 2 Turbos & Timing Chain; 70,850 - Throttle Body; 88,595 - @ Exhaust Manifolds; 90,106 - Transmission Valve Body; 96,400 - Rear Pinion Seal
Moderator
Joined: May 2005
Posts: 8,237
Likes: 1,248
From: San Antonio, TX
I'll just add in response then. Bought my truck brand new in Dec 2015, the only time that I have needed to make a trip back to the dealer was for recalls and a check valve on the IWE that was fixed under warranty. Zero issues with the engine. 3.5 gen 1 EcoBoost with the updated timing chains a guides that were installed on factory engines beginning in May 2015. Currently at 58k miles. Spark plugs changed and a coolant flush at 50k miles.
Super Moderator
Joined: Jan 2008
Posts: 40,050
Likes: 1,524
From: Maine, Virginia
2011 F-150 3.5L Eco. Plugs and one coil changed around 62K miles. All o2 sensors changed around 90K miles because one sensor went out, I just changed the rest. 95K, changed all plugs and coils, the two drive belts, trans and coolant flush.
The ecoboost is well known to be tough on plugs and o2 sensors and that's where the claim of higher maintenance is coming from.
I'm at 109K and no issues to speak of.
The ecoboost is well known to be tough on plugs and o2 sensors and that's where the claim of higher maintenance is coming from.
I'm at 109K and no issues to speak of.
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Super Moderator
Joined: Apr 2004
Posts: 34,530
Likes: 2,833
24,000. No engine issues, had to replace my battery.
Looks to me like EB reliability is just fine.
Looks to me like EB reliability is just fine.
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