For a Turbo engine, Toyota made it as simple as possible; Vacuum operated waste gate instead of electronic like the Tundra so theres no worries of the issue that plagued the early 3rd gen Tundras and will likely appear as they get older. Also if the Turbo did go out on the Tacomas, there’s only 1 and it seems easy to get to; on the Tundra there’s 2 and you have to either pull the engine or the cab to access them. The intercooler on the Tacoma is air to air instead of liquid to air like the Tundra so there’s only 1 cooling system instead of 2; and there’s not a bunch of coolant hoses and the 2 in 1 coolant reservoir that the Tundra has. Also the Tacoma has only 1 radiator while the Tundra has 3. Since it’s a Inline-4 instead of a V-6; spark plugs take 15 min, if you’ve seen what it takes to do spark plugs on the new Tundras…it doesn‘t look fun. It seems like Toyota doubled everything with the Tundra over the Tacoma…2 Turbos, 2 Air Filters, 2 Mass airflow sensors, 2 Throttle bodies, 2 Cooling systems, and since it’s a V-6; double the engine components. Also the Tacoma’s engine seem to lack the catastrophic failures that seems to be continuing 4 years later on the V35A-FTS.Yeah, that 6 speed choice was trash for a small V6. Terrible gearing when combined with the 3.91 axle ratio. And yep, the engines are known for a boatload of potential issues. People love to brag about how well theirs are still running but that doesn't mean tomorrow it won't have developed one of the issues. The intake runner flap that breaks is another thing to add to the engine issue list. Just overall a terrible choice in a truck. Seems like the number of cylinder scoring and valve burning engines just keeps climbing as well. I'm truly interested to watch and see the future. I'm curious if there will be more and more at a faster rate or if the problems will mostly die off and stop being talked about. I imagine the numbers will grow as they get older.
Anywho, I'm not sad to see my V6 go and am excited for the T24A and honestly think it will hold up significantly better. Other than having a turbo driving it, it is a simpler engine in general. No coolant crossover, layered timing cover design to eliminate leak prone joints at the block/head, and just in general a lot less parts since it's a single bank I4 instead of a dual bank V6.
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