Hi Scotty!
Hello from Brooklyn NY.
i just bought a used 2000 Toyota Tundra with 211k miles on it runs great. It was the first generation that were manufactured in Indiana in 1999. Solid frame runs great but there was no known history of if and when the timing belt/waterpump were changed. Is there a way to tell, any symptoms to look out for? No idea if and when it was changed.
If you want to check the belt conditions, you can take off the timing belt cover and check it. But you are better off changing it sooner than later. Considering the interference engine, if the belt snaps, you should say goodbye to the engine.
If there is ANY question, change it now for the peace of mind that you are not going to destroy your engine over a $37 timing belt.
@ToyotaFanatic69 "It's a V8."
Then as @nlord stated the 4.7 liter V8 is an interference engine, so since you do not know the maintenance history of this vehicle, it would be advisable to change the timing belt along with the water pump and new camshaft and crankshaft seals, tensioner etc. Good time also to flush the coolant and replace with new.
Does it have the 3.4 V6 or 4.7 V8? Non Interference vs Interference. The V8 was optional those early years.
Either way, if it hasn't been done, better safe than sorry, the water pump could even go and risk overheating.
Its a v8
Go to toyota.com and create an account and add your vehicle by the vin number. I like to do that because I will see the records toyota has done to my car. For my Lexus GX470 with the same motor, it showed me exactly when it was done, it also shows me a lot on my 2005 matrix. Always nice to be able to see the maintenance done.
I would give that a shot, and if they changed the timing belt at toyota, it will likely show it, and give you an idea how urgent it needs changing.