Ford Authority

Ford Tech Says 2011-2014 5.0L Coyote V8 Has Big Flaw: Video

FoMoCo technician Brian Makuloco – who also runs a YouTube channel called FordTechMakuloco – has provided us with quite a bit of useful information over the years, covering an array of topics and common issues with Blue Oval models and powerplants. Several of those videos revolve specifically around the Ford 5.0L V8 Coyote powerplant, including more than one pertaining to issues with coolant leaks. Now, in his latest video, Makuloco tackles another big flaw, this time, with the Coyote V8 used in 2011-2014 Ford F-150 pickups, specifically.

2011-2014 Ford F-150 5.0L Coyote V8 Sunken Valve Issue 002

That issue is sunken valves, and it is a problem that impacts the 2013 F-150 in Makuloco’s shop on this particular occasion. That truck experienced a loss of compression in one of the cylinders, which was causing a misfire at idle. After doing a little testing, Makuloco immediately began looking at compression, knowing that sunken valves are a common problem with these first generation Coyote V8 engines.

This issue stems from the fact that the intake valves are too soft, and eventually, they get “sunken” into the heads, or close up like a tulip. After this problem was identified, Ford came out with a new, revised valve that fixed it, but the issue extended into the 2014 model year regardless.

In the case of this F-150, Makuloco opted to replace the entire Coyote V8 rather than fix the head because of the sheer cost – it would have actually been quite pricey to repair the head, and it’s likely that the other one would wind up having the same problem later on down the road, after all. It’s an unfortunate issue for anyone that owns a 2011-2014 F-150 with this particular generation of the Coyote V8, but as Makuloco points out, every iteration of that same powerplant has its own unique known problems, regardless.

We’ll have more informative videos like this to share soon, so be sure and subscribe to Ford Authority for 24/7 Ford news coverage.

Brett's lost track of all the Fords he's owned over the years and how much he's spent modifying them, but his current money pits include an S550 Mustang and 13th gen F-150.

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  1. Ralph Englehart

    and, as usual, the owners have to foot the bill while ford continues to deny recalling all these pieces of sh*t until the “government” or media says something! just like the transmission lines that rot, or hows aboot all the coolant leaks with these engines? and let’s not forget the exhaust manifolds that have been poisoning ppl for decades now, and are still a common, serious matter that ford refuses to address! as a ford fan and owner my whole life,(49yrs) I feel so disgusted and embarrassed because I am having many of these issues with my 2011 F150! im afraid to simply drive it 2 miles to my local grocery store! and its only got 112K miles on it! im battling serious health issues and rely on my 2010 chevy traverse(which also has its own self inflicted issues, thanks Chevrolet) because im terrified my ford truck will leave me stranded! I would say that ford executives should be embarrassed by this, but considering that they continue to make JUNK, and are by far, the king of recalls, I truly believe that ford doesn’t give a damn!! so much for the slogan, “quality is job 1”, right ford!!

  2. Bonald Trump

    Try the Chevy Ralph


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