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#11 | |
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I've made a post!
Drives: Toyota Yaris 2007 (Basic) Join Date: Apr 2011
Location: Sounthern California
Posts: 1
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water pump bearings and leaking
Quote:
I have 126,000 miles on my Yaris Basic (USA), and the bearing could be heard for the last 6 or so thousand miles. I mistakenly thought it was the altinator bearing. I got the serpentine belt off and spun the altinator...smooth as glass good bearings. Everything seemed fine as I scratched my head wondering. I started the engine up without the serpentine belt in place...no noise. This told me it had to be the something that the serpentine belt spun up...the altinator, water pump, or air conditioner pump. I turned everything...all the bearings seemed fine. I then brushed my hand under the water pump, their was partially dried gunk their. A closer look revealed antifreeze leaking so slowly from the bottom of the water pump that it dried their to form a crust. The hole in the bottom of the water pump lets it leak out their if the seals fail. I replaced the water pump, that was my problem. I believe the seals failed letting antifreeze leak into the water pump bearings, thus the bearings started to fail. The failing bearing sang their warning song for 2 months before I troubleshot the problem. I am thankful for that. But a little disappointed in the quiality of the water pump. Hopefully the next one lasts longer. |
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