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James, I have a 2001 Toyota Tundra with a 4.7 liter automatic transmission. It only has 60,000 miles on it and I don’t know if I need to change the timing belt or not. I have asked around and get different information from other shops. What do you say I need to do according to the mileage and age of my truck? Jim

Jim your 2001 Toyota Tundra 4.7 liter engine IS an interference type engine. This means if the belt breaks or slips engine damage WILL occur. I looked on my technician reference guide for Toyota about this engine, it is recommended to change the timing belt every 90,000 miles or 72 months whichever comes first. You are well past the age limit on the timing belt, now you are running on borrowed time according to the manufacture. It may last 10 more years or 10 more miles, I have no crystal ball to see the future. I would suggest that the timing belt be changed along with other components that are behind the timing belt or that ride on the timing belt. This includes water pump, cam seals, front crank seal, tensioner, idler pulleys as well as the serpentine belt (if it has not been recently replaced). You will need to replace your long life coolant due to its age and your changing of the water pump to do this procedure. Hope this answers your question.

 

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