Quote:
Originally Posted by tankowner
Thanks Phil. I actually replaced the serpentine belt on this one ('95) about a year ago, so I doubt that is it - but a good thought.
I wonder if there is some way I can verify it is the water pump, without just replacing it to see.
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I haven't had to do it on my MB but with other cars you can tell if the water pump is going out by taking the belt off and then grabbing the pully on the pump and shaking, pushing, pulling etc and if you feel it moving then it's time for a new one. The shaft of the pump should not move around in the bearing.