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Old 04-22-2013, 02:03 PM   #12
CA_Boxster
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Join Date: Sep 2004
Location: N. California
Posts: 118
Quote:
Originally Posted by evo-r View Post
What are the symptoms of a failing water pump?
If you're lucky then you hear muted grinding sounds like there are some pebbles caught in the underbody. This is the sound of the impeller starting to break into pieces.

If you're less lucky then you're driving and the car overheats because all the coolant leaked out slowly over time through the hole left by the broken impeller
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