Kind of curious, your water pump failed a few weeks after buying the car but you were also inquiring about it 10 days before you reported that it failed... did the seller tell you it was bad?
No, no indication or hestiation when I looked the seller dead straight in the eyes and asked if there were any known issues.
I did all my homework on the car. CarFax, called the dealers that the car had been serviced at and obtained service records that showed all repairs and frequent oil changes, etc. I test drove the car and all. On paper, this was a very well maintained car. Later, when I had the failed water pump replaced, I had pictures taken of all the insides and went to the shop to inspect; all internals were prestine like it really had been taken care of. The shop couldn't give me a specific cause for the failure other than, "water pumps fail and aren't intended to be a lifelong part."
The shop also added to my earlier, what the fuck was Mazda/Ford thinking when they buried the waterpump in a place that requires the entire engine to be pulled to replace the damn thing.
My initial inquiries were based on my research in buying a 3.7l and several horror stories posted on the web by others. This duratec design was shared with Mazda, Ford, Lincoln, and Mercury (Milan, I believe). But the failures I was reading about were within initial 36k miles or just past that mark. The disposition of those cases varied between whole engines replaced under warranty or someone shelling out $8k for a new engine.
It's a fully loaded 6s GT. I fell in love and took the gamble. Water pump failed, it was fixed with no detrimental damage, and to date it's running fantastic. One year later, I still love the car and don't regret it. With new waterpump and timing chain that was replaced at once, I figure I'm good for a while, and it cost me less than a third of a new 6.
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