Gen 3 Failures

Is all the negative talk on here and YouTube about the gen 3 Tundra and spun bearings warranted? I bought this truck in a rush without much research and thought I was making a good choice based of the gen 1/2’s reputation. I intended this truck to be kept long term but after hearing about all the failures I’m in a panic with buyer’s remorse.

 

I feel the same way but I am waiting to hear more about what is really happening with these failures.

However, consider that if 300,000 Tundras have been sold and we have heard of maybe 50 to 100 failures. There are probably more that we don't hear about but even if there were say 300 to 1,000 failures, That doesn't represent a huge pool of trucks.

And that the tracking seemed to indicate that most of these occurred on trucks built before March 2023. Maybe only a couple have failed with newer build dates.

My concern has been calmed by this reality. If the engines were failing all over the place, we see something from Toyota addressing the issue.

As far as warranty goes, i believe that all the failures have been covered with the exception of maybe the first or second one.

 

If your bearings sh!t the bed, then it was all warranted. If you have years of trouble free enjoyment like most will, then it’s all just the ramblings of the few that suffered a failure. I wouldn’t worry about it personally. Just enjoy your truck.

 

Is there any solid evidence to what is causing the bearings to fail? One interesting theory I have heard is fuel quality and octane rating. Meaning, regular 87 octane causing pre-ignition knocking and thus damaging crankshaft bearings.

In Fords 3.5l eco boost owner’s manual, they specifically state that higher octane will improve performance. It also mentions that light knocking could still happen with the recommended 87 octane.

Toyota’s manual doesn’t get specific and only states that 87 or higher should be used. Could the fix to this bearing issue be as simple, but expensive, as using higher octane fuel.

 

Why worry about something that has not happened yet nor is very likely to happen

boost on and enjoy your truck

 

I always run marvel mystery oil in tank pretty cheap turbo and fuel pump protection and 87 octane or 89 whatever your budget the computer will mix the rest. Try 102 av fuel you can get a chance at blowing a piston and turbo.

 

V8 will always be waiting for you when you decide to come back.

 

Saw an article about a 3rd Gen that went thru 3 engines..