2018 Ford F-150 5.0 Gen3 Coyote Teardown. Why Did They Replace This Engine?

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Every week I post a new teardown video of a blown up or suspected bad engine. Check out a few of my favorites!
Mazda Skyactive engine teardown with. MASSIVE damage    • Mazda Skyactiv 2.0L EXTREME ENGINE DISASSE...  
6.7L Powerstroke ruined by driver    • The FASTEST Way To Kill A Powerstroke! Eng...  
Gen1 Ford Coyote Teardown    • SOMEONE SCREWED UP! This Ford Mustang 5.0 ...  

Today we have a 3rd generation Ford 5.0L Coyote V8 from a 2018 F-150. This is a core engine from a salvage yard, which sold a good engine and got this one back as a core. I didn't get a story with this engine but with some help from ⁨@BeardedFordTech⁩ I located the last 8 of the VIN on the block, and was able to get the entire VIN and do a carfax. This truck was reported to have 98,000 miles in 2021 but the info went dark after it got a new owner after that report. So, the real mileage of this engine is unknown, but over 100k? 150K? What do you think?
So I tore this engine down with the thought it was locked up because that's what I was told when I bought it.... and it wasn't. So what was actually wrong with this engine that necessitated replacement and could this failure have been avoilded?
Why am I doing this? My name is Eric and I own and run Importapart, a full service auto dismantling business. Part of our model includes buying blown up and bad engines to dismantle for parts. We salvage the good, sellable parts and recycle rest. No, we don't rebuild engines but we do sell parts to people who do!

As always I hope you enjoyed this video. I love all of the comments, feedback and even the criticism. Catch you on the next one!

-Eric


00:00 Intro
03:09 Turning the engine over. It ain't locked up!
03:55 Pulling coils and plugs, and inspecting spark plugs. GAP
06:18 Turning engine over without plugs. WHAT IS THAT POP
06:55 Unbolting intake manifold and looking at the intake ports. Not great
08:21 Peeling off the LH valve cover and first look at the inside of this engine
11:32 Removing the RH valve cover
12:54 Unbolting and using a puller to remove the crank pulley
13:27 Painstaking proper removal of the water pump with precision
14:01 Removing all of the timing cover bolts and prying off the cover
15:48 Turning the engine over to show the POP noise we heard.
16:55 Unbolting the phasers/cam gears and peeling off the timing system, chains, rails, tensioners
18:32 Cramming the cram crams loose on the LH bank, removing caps and cams and inspecting the valve train
20:47 Cracking the headbolts loose and lifting the cylinder head
21:43 Inspecting the pistons, bores, and cylinder head. GRUNGY
22:34 LEFT SCIENCE
23:07 Crammin the cram caps loose on the RH bank, and inspecting the cams and caps
25:15 Cracking the RH headbolts loose, zipping them out and removing the cylinder head.
26:07 A closer look at the bores, pistons and cylinder head on the right bank of this 5.0L. Very similar, but strange stains?
26:45 RIGHT SCIENCE
28:56 Unbolting and removing the PLASTIC oil pan. NO!
32:16 Removing and dismantling the oil pump for inspection
33:38 Unbolting and pushing the first two rods and pistons out
35:05 Unbolting and pushing the last two rods and pistons out
35:28 Zipping out the main cap bolts
36:17 Fighting with the rear main seal plate and thrust bearing main cap, plucking the crankshaft out
37:04 Complete lower engine inspection *not like that*. Crankshaft, bores, block, crank, rings, bearings
40:53 Summary