Re: timing belt and water pump
Toyota coolant does not "corrode" rubber and that's why the insides of your coolant hoses will be still in good shape after 20 years and unlimited miles of exposure to Toyota coolant. So you do not have to worry if a small amount of coolant gets on your rubber timing belt due to a minor coolant seepage leak. And you do not have to replace the water pump unless it gets noisy or leaks enough coolant to drip on the ground. So unless the leak gets worse, I'd continue driving the truck and hold off on timing belt and water pump replacement until you hit 90,000 miles
Both the water pump and timing belt are covered by Toyota's 5 year / 60,000 mile powertrain warranty.
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