Since there has been much discussion around the EcoBoost F150s lately, I thought I'd detail a new problem with mine. Just as reference.
When I bought the truck used (2013 F150 FX4 Crew, 3.5L EB, now 60k miles) I worked in 2 free oil changes at the dealership. Dealer oil change is normally $125 or so (yeah, I got no clue.) Anyway, after the first change they failed to correctly secure the fiberboard "transmission skid plate" and it fell off the next day. I zip tied it back on because the turn and lock factory fasteners were dumb and prone to failure. Today it was time to get the second oil change done, so before taking it in I crawled under it to remove the "skid plate." I figured they'd just berkeley it up if I left it on. After removal I took a minute to look around for leaks. Unfortunately I found one.
There is coolant leaking from a fitting on the back of the turbo on the driver's side. Not enough to get past the fiberboad skid guard, but enough to leave a wet spot on the A-arm and be visible on the turbo. Also, the coolant level was a bit low, but not hugely.
With a little research I learn that there are two water fittings on each turbo that use a screw-in fitting on the turbo and then a metal tube pushes into them. The seal is made by a rubber o-ring in the replaceable fitting. The o-rings tend to fail from the turbo heat.
The unfortunate part of this is that I have to pull the turbo to replace them. Initially, I was worried. But after watching a few YT videos, it's actually pretty simple. Pull the plastic inner fender and everything's right there. Drain the cooling system, take all the fittings loose, pull the turbo. Replace fittings on turbo. Reinstall. Should take about a day unless E36 M3 gets sideways.
The bright side? 2 fittings and 3 gaskets get the job done, they were in stock at the dealership, and cost a total of $65.
I'm not super happy that it has a leak, but it is 5 years old, and 60k miles. The fix is cheap and DIY-able. Could be worse.
I'll probably tackle it this weekend, stay tuned for updates.