That was the 2.3 motor Mustang /Rs, not a desgn fault, installing wrong head gaskets on wrong motors
That isn't what he is referring to. He is refering to the coolant slots they cut in-between the cylinders for coolant transfer. Those caused coolant intrusion on 1.5, 1.6, 2.0, and 2.3 eco motors. The head gasket deal was totally separate.
Focus st bud
The original post is pretty old but technically it was used in the second gen focus prior, then it was known as the duratec 2.0. That motor was the result of a collaboration with Mazda (which is why it was so good) and then when Ford debuted the 2.0 Ecoboost it was based on that 2.0 duratec I believe with their own cylinder head. That Ford designed cylinder head has been the source of the majority of problems with the 2.0 Ecoboost but I believe they finally have it sorted with the version that's in the Maverick. I believe whoever made that comment was referencing the 2.0 duratec which actually has a ton in common with the 2.0 Ecoboost
Not true. The Focus 2.0 is an engine inherited from the Ford/Mazda collaboration, and the only significant differences since then have been 3 minor head redesigns by Ford and not Mazda, and the use of a higher torque dual-scroll turbo instead of the single-scroll that had higher hp at the redline that was used up to about 2015. All of them were named Duratec 2.0 engines when used in Fords, but the block and everything else are almost unchanged from the Mazda parent. The Mav has the last of these with the VVT mechanism, and the previous two were primarily used on Fusions. The version with additional cooling ports around the head was poorly designed, and failed pretty often. Theere was a 1.6L version used on Escapes and a couple of other vehicles for two years, that was replaced with the 1.5L 3-cylinder. There was also a different 1.6L variant sold in Europe that had a rubber belt to run the oil pump, that failed a lot and was never sold in North America.
My wife had a 2013 focus. Great car. You needed to start off and floor it to 60 every couple months to keep the clutches aligned. Then it ran fine. I worked at a ford dealer in 2015 when the recalls started, we had clutches stacked 10 high along an entire wall… it was not an easy repair either. My wife’s focus did fine until 94,000 and then she got a new clutch under warranty. Sold a few years later and got a fusion energi.
