This problem has been popping up on a very regular basis on the Boxster and 996 engines.  So much, that I think I am going to start recommending waterpump replacement at about the 80k mile or 10 year mark as that is about when they seem to be failing. Failure can be leakage from the bearing weep hole, and if that is let go for more than a few days, the bearing and impeller are going to explode. Not a pretty sight. We …

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