Water Pump Failure Prevention

[NzP]

mine is 2009, WP failed at 115k, coolant is clean(green) - I think nobody changed since 2009. I'm thinking should I change it if everything's fine?

[explorerrob]

On 10/14/2025 at 1:46 PM, enigma-2 said:

IThat's a bad sign. The water pump is leaking and he should NOT DRIVE THE CAR. It will cause damage. Get it serviced immediately. 

 

I'm going to have my 09 MKX  changed at around ~150—175k for preventive maintenance. At that time, will also have everything else that fails replaced as well, ie, timing chain and guides, cam phasers (not a common failure on naturally aspirated 350's, but why chance it), spark plugs, coil boots, PVC, etc.

 

On the fence over also changing the injectors and coils. 

 

Motorcraft parts only, of course. 

I will definitely be replacing everything behind the timing cover, only want to do this once. I drained a majority of the contaminated fluid, let it drain for about an hour. Filled.with fresh oil. Did not add coolant, -2 celcius so was not worried about it overheating running for a few min. Wanted  to start the car to see if it was hammering or knocking. That would be the deciding factor as to whether or not I fix or sell.  Sounded good so as soon as I finish the front hubs on the Mazda, into the garage it goes.