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2012 ecoboost engine surges

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Old 07-28-2017, 06:43 PM
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Default 2012 ecoboost engine surges

The engine surges a couple of hundred rpms at around 50 mph. Doesn't do it all the time, about 50% of the time. The truck has 69000 miles on it. I bought it used two months ago.
Old 07-29-2017, 09:08 PM
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Originally Posted by john robasse
The engine surges a couple of hundred rpms at around 50 mph. Doesn't do it all the time, about 50% of the time. The truck has 69000 miles on it. I bought it used two months ago.
sounds like mine, most noticeable in 3rd 30-40 under some load. Dealer says it's fine, I just posted a pic of a turbo w rust in it.
Old 08-01-2017, 04:14 PM
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Originally Posted by john robasse
The engine surges a couple of hundred rpms at around 50 mph. Doesn't do it all the time, about 50% of the time. The truck has 69000 miles on it. I bought it used two months ago.
When were the plugs and boots replaced? if they haven't been it is about $50 to do it yourself and gap them to about .030"



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