Quote:
Originally Posted by 10/10ths
...for water pumps is TIME, not mileage based.
One of the failure modes is the plastic blades breaking down and bits of them floating around and blocking the coolant passages. That is bad.
But, like the others have posted, you do NOT want metal blades for the reasons they cited.
So, you must just own the idea that you must R&R the pump with a fresh OEM unit every FOUR years.
Do that, and you will be fine.
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???? Every 4 years regardless of mileage? Where do you get this from? That makes no sense. Yes, age plays a factor, but mileage = the useage and that's what wears it out. Hence why most change it when they would do the timing belt ( or in our case, around that 100 k mark). 4 years....man....
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