2019 Ford F-150 3.5L Ecoboost MAJOR ENGINE FAILURE! Full Teardown W/

Don't have this 🤡Work on Anything you own if you don't want to be Seating on the Side of the Road and Looking at it costing you Tens of Thousands of Dollars.

Been at a Ford dealer in parts for 23 years. We do ALLOT of 3.5 Eco repairs. But NEVER any lower end failure, even on the N/A FWD 3.5 with water pump failures, I bet we've only done 2-3 engines due to coolant puking in to the crankcase. And I love the comment sections lol... POS Ecoboosts... We've seen many first gen with well over 300k on them, with maybe a chain replacement. When they're well maintained they will live. Eventually turbos will fail, tell me a turbo engine where they dont? On the other hand, no matter how well you maintain your Hemi, it will wipe a cam. No matter how well you maintain your GM LS with AFM, they will fail. Thanks again Eric for an awesome vid of epic engine failure!

I’ll tell you how it happens… a 5 Star Tune and a pair of turbos.

I love how he always says, "I'm not a mechanic". If you work on a fleet of BMW's just for fun, you are a mechanic.

The sounds that engine was making when it broke had to be phenomenal.

Re: oil pan debris comment - "The Bearing Sea". Good one that didn't go unnoticed😄!

I’m kinda proud that I figured out that the crank was broken within the first couple minutes of the tear down though I had to rewind a couple times to know I wasn’t crazy. If you look when he turned it over you can see the wobble in the damper as he overcomes the compression/ bind. Anyways, I took a failure analysis course on engines from caterpillar, and they spent a lot of time teaching us fracture patterns. The thing about fractures like this is they always generally start at stress risers. In this case, the fillet of the rod journal. If you look closely, there is a very smooth oval spot right at the edge of the brake where it meets the journal. This is the origin of a fatigue crack beginning at that stress riser and slowly working its way though. The crack reached a point where the structural integrity of the crank could no longer hold up to normal cyclic loads, and the crank began to transition from a fatigue crack into a brittle fracture with chevrons pointing towards the origin. This part of the failure rapidly accelerated until it finally snapped the remaining material. With only the front bearing supporting the front section of crank, it was free to move a large amount, exasperated by the loads placed on the nose by the timing chain and accessory drive belt. This movement was enough to overload the bearing, forcing it to spin, as well as damaging the oil pump thrust faces and breaking the chain guides.

My Dads 2012 King Ranch F150 5.0 cracked 3 pistons at 92,000 miles so it happens to all the engine options. I know a lot of people say the Coyote is the best option but who knows. My Dad is 70 years old and absolutely babied it and always changed the oil at 4k-5k intervals. I’ve seen some of the 3.5 ecoboost engines hit 500,000 miles so maybe it just depends on whether it was built on a Wednesday or a Friday

10:07 I like when the rattle gun sounds like a laser pistol!

"That sounded terrible! Let's keep going." Throwing caution to the wind 😂

"This guide is unbroken," proceeds to smash said unbroken guide lol. These are not the main reasons I keep coming back to your videos but they are unique bits of flavor to your videos and are always entertaining. Thanks for the teardowns Eric!

Watching vids like this explains why I have a profound respect for automotive technicians.

I don't know what language you use when you're not making videos, but I'm sure glad you keep them clean and enjoyable to watch. It's nice to see a young man with great attitude. God bless you 🙏🚓

The initial turn over... Rodney is that you?

Back in 2016, I wanted to get the 3.5L in my service van. My boss opted for the 3.7L. 8 years, 170k, and one water pump, it's still going strong.

ford hate aside, my 2015 F150 has the 3.5ecoboost and it has been a rock solid motor for 140k and counting. The icing on the cake for me is the mileage. I get an honest 21mpg highway if I keep it to 70mph. My last F150 had the V8 and it only got 17mph although that engine was also rock solid. So over the life of my current truck, I have saved quite a bit on gas cost. I'd get another 3.5ecoboost any time. If you keep your fluids changed regularly, they are great engines.

2017 f150 with 3,5L 279000+ - put every mile on it myself, The only things performed besides routine maintenance - belt tensioner and idler pulley and new serpentine belts, battery, and last month had the exhaust welded uup just before the muffler, and did change spark plugs twice as far as anything associated with the engine. Other maintenance Both front wheel bearings, rear shocks twice, and front brakes only. Have the service records to prove it. Still has every original light bulb in it. This is a work truck, and im not even remotly a Ford fan. My personal vehicle is a hd 2500 GMC 4DR, and that has serviced me well too.

Little JB weld on that crank and she’s good as new.

"This guide is.. unbroken." SMACK Spat out my drink. Your character and cameraworthiness makes these so fun.

Wow, never saw a broken crank. Thanks for taking the time to show me one.