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3.5 Eco boost regret?

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Old 08-05-2017, 02:48 PM   #751
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Ecoboost beware! Bought my 2012 FX4 Ecoboost and loved the truck. Bought many Ford vehicles over the years and 3 F150 before. **** about oil and filter changes. So I was stunned when the engine seized at 83K miles. Ford Tough means thats their response when the engine seized. 60K is the warranty. Figured bad luck and put in used 21K engine for $8000. Just seized again after 70K miles (total of 91K). Likely same issue, intercooler fills with water from condensation then gets sucked into engine. Cant compress water so piston fails and engine damaged beyond repair. First time it did it without warning. Second time, I heard a knock but dead before I could get off the highway. DO NOT BUY An F150 with the ECOBOOST!
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Old 08-06-2017, 02:28 AM   #752
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Originally Posted by johntdoyle View Post
Ecoboost beware! Bought my 2012 FX4 Ecoboost and loved the truck. Bought many Ford vehicles over the years and 3 F150 before. **** about oil and filter changes. So I was stunned when the engine seized at 83K miles. Ford Tough means thats their response when the engine seized. 60K is the warranty. Figured bad luck and put in used 21K engine for $8000. Just seized again after 70K miles (total of 91K). Likely same issue, intercooler fills with water from condensation then gets sucked into engine. Cant compress water so piston fails and engine damaged beyond repair. First time it did it without warning. Second time, I heard a knock but dead before I could get off the highway. DO NOT BUY An F150 with the ECOBOOST!
If the condensation problem in the inter cooler was the problem on both engine failures why didn't you fix that problem with a different or aftermarket inter cooler?It looks like guys have put over 150k miles on them with very little troubles.Sometimes the blame is on the owner but they don't see it that way.

Last edited by Mark Miller; 08-06-2017 at 02:32 AM.
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Old 08-11-2017, 02:21 PM   #753
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intercooler condensation issue is not a bad engine issue, it's....an intercooler condensation issue.

No engine can compress water...so the engine failure is not because the ecoboost is bad...
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Old 08-13-2017, 02:31 AM   #754
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intercooler condensation issue is not a bad engine issue, it's....an intercooler condensation issue.

No engine can compress water...so the engine failure is not because the ecoboost is bad...
I agree very well said IMO!!!!!
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Old 08-13-2017, 06:46 PM   #755
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Just did my first oil change at ~4500 miles, to Castrol Magnatec and a Ford filter. I would recommend a 4000-5000 mile interval based on the smell of fuel in the oil (common with direct injected motors.....so don't fear that)....went with the Magnatec based on the reviews on BITOG regarding ecoboost motors and specifically the 3.5 EB.

Still very much love this truck and engine. Fun to drive, ridiculously powerful. Very happy!
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