Why would water pump bearings go bad? Mechanic said that's what causes the high pitched sporadic whistle. I

Asked by Aug 12, 2015 at 01:58 AM about the 1999 Plymouth Voyager

Question type: Maintenance & Repair

It happens when light/slow braking reaches 20 mph /less  or when waiting at light. Barely
touch gas pedal & sound quits.  Van has Braun's Entervan II  system & is locked in kneel
position.  Only 59K miles.  How much $$ to fix?

1 Answer

21,120

Would try replacing serpentine belt first and with belt off you can check the bearing on the water pump and other accessories by spinning with hand and listen for a roaring noise while it is spinning.

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