Technician Discovers New Problem With Ford Second Gen EcoBoost V6 Engine

Brian Makuloco, a Ford technician who shares his insights on YouTube, recently highlighted yet another problem he’s found with Ford’s Second Generation EcoBoost V6 engine, reports Ford Authority.

First and second generation Ford EcoBoost engines have garnered a lengthy list of known issues over the years, including heavy coolant consumption in the 2.0L I-4 EcoBoost, and exploding internal parts, excessive carbon buildup, and phasers in the 3.5.

Makuloco, who frequently covers problems with EcoBoost engines on his YouTube, said he’s beginning to see a new problem crop up—specifically in second-generation twin turbocharged Ford 3.5L V6 EcoBoost engines.

Instead of the direct acting mechanical buckets seen on the first generation of the engine, the second generation uses roller followers, which Makuloco discovered are prone to coming loose over time, as well as damaging the outer portion of the cam lobe through friction.

A problem that has been seen in other engines, including older three-valve 5.4L V6 Tritons and certain 5.0L V8 Coyotes, Makuloco noted he’s now beginning to see the same issue with roller followers in this variation of the EcoBoost engine.