I just changed the water pump in my zetec when I was changing the timing belt. I noticed that the impeller was made out of plastic. It looked ok my car has 90k miles and has been well maintained by me and the previous owner (regular coolant change etc).
My question is my new replacement water pump from ford also had a plastic impeller. Was it my mistake to put it in? I heard that the new plastic water pump had some changes in it but is it enough? Has anyone had any of these new "improved" plastic water pumps gone out prematurely? Thanks
