Two problems related to engine failure have been reported for the 2013 Toyota Tundra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Toyota Tundra based on all problems reported for the 2013 Tundra.
#4 intake valve spring broke and cause engine failure.
My 2013 Toyota Tundra truck ( 74,734 miles) suddenly had engine failure while driving down an incline at 48 mph. I lost power steering and power brakes. After eventually pulling the wheel with much effort and using the emergency brake I was able to get the truck off to the side of the road. I turned the key and the engine started right away and I was able to drive again but only at a reduced speed of 40 mph or less ( it's called "limp" mode) my mechanic diagnosed it as a secondary air injection pump failure. Upon investigating this on several Tundra owner message boards, I find that this is a common failure Tundra trucks at around 75000 miles. The Toyota dealer confirmed that this has been a common problem and looked up my VIN number to see if it qualified for a warranty extension program that Toyota has offered for some 2012 and 2013 Tundra trucks. Unfortunately my VIN number was a few numbers beyond the extension program. Had my wife been driving the truck when this happened, I am not so sure she would have had the strength to safely bring the truck under control and get it off the road with no power steering or power brakes. I want Toyota to extend the warranty on this faulty part before someone gets into a serious accident. They have obviously admitted there is a problem with this part and should extend it to all Toyota truck owners with this particular problem. Not just a select few.