Bad news on V8 UR-series motors from Car Care Nut.

Just came across this. I'm immediately skeptical of these sorts of videos, but Car Care Nut is generally not a clickbaity sort of guy, and when he brings out a sheaf of failed/failing head gaskets from a bunch of motors all with the same failure mode in the same location I get less skeptical.

I'd say the main preventative here is probably to change coolant at least every 50K miles, not 100K+.

https://www.youtube.com/watch?v=dfGTI0sWozc

 

At the end of the vid he says 50k or 5 years. Either way it's not gonna stop the warping, right? Just gonna prevent the leaking, maybe...

 

This video is hotly debated on Tundras.com I don't see how this is a "trending" issue. These aren't new engines. They've been around for a long time and a lot of them going the distance with high mileage. Just because he has a half dozen UR's doesn't mean it's a widespread issue.

I'm not discrediting CCN because he has a lot of knowledge and great videos, but I don't see any reason to panic.

 

The 5.7 has its share of problems a major flaw they were never able to rectify in all the years they made it was the infamous cam tower leaks @Superdave1.0 works on some and perhaps he can shed some light on other flaws

 

I've worked on a few of them, and have replaced one 5.7 motor on a Tundra. My neighbor has a 5.7 with 90k miles. He's been chasing a misfire code. Toyota dealer recommended fuel injectors, so they replaced them. I did spark plugs and coils for him. Still has a misfire code. Needs a really good diag.

The 5.7 I replaced that truck had 200k miles. I think that's an acceptable lifespan. Truck was a work truck and not taken care of.

I'm no expert on this motor. I would assume they are reliable for the most part. If you look up misfire 5.7 there are plenty out there.