Engine Coolant pump replacement question

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by dhman2006, Aug 8, 2013.

  1. dhman2006

    dhman2006 Member

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    My engine coolant pump is making grinding noise. There's no coolant leaking but I'm assuming the bearing inside is going bad. Since it's just a mechanical part I'm assuming any mechanic can perform the basic engine water pump change. I'm just wondering what kind of price range am I looking at? Has anyone changed their water pump?
     
    #1 dhman2006, Aug 8, 2013
  2. edthefox5

    edthefox5 Senior Member

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    #2 edthefox5, Aug 8, 2013
  3. dhman2006

    dhman2006 Member

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    Thanks but I meant total as in parts and labor.
     
    #3 dhman2006, Aug 8, 2013
  4. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Probably ~$400: $100 for the pump, $40 for two gallons of Toyota SLLC, the remainder for labor time. Note that the eBay listing above is for the inverter coolant pump which is not the pump that you asked about in your OP.

    Also note that it is possible that the noise is being caused by the idler pulley which tightens the serpentine drive belt, not the engine coolant pump.
     
    #4 Patrick Wong, Aug 8, 2013
  5. dhman2006

    dhman2006 Member

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    Thank you. Yeah I noticed that too since it says inverter pump.
     
    #5 dhman2006, Aug 8, 2013
  6. AzWxGuy

    AzWxGuy Weather Guy

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    I did mine myself. It was $47 for the pump from AutoZone, and I recovered all the coolant and reused it. I even reused the rubberized metal gasket which looked new. The only other expense was an inch-pound torque wrench, which I had been needing anyway. I'm thinking now that I probably didn't have to replace it, after having read on several threads that the pump will burp some coolant now and then. I figured if coolant made it past the seal, then the bearing was toast sooner or later. It wasn't making any noises though.
     
    #6 AzWxGuy, Aug 8, 2013
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