1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Dumb question on engine water pump replacement

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by triollie, Jan 9, 2018.

  1. triollie

    triollie New Member

    Joined:
    Jul 20, 2017
    5
    5
    0
    Location:
    New Jersey
    Vehicle:
    2005 Prius
    Model:
    N/A
    I have a 2005 Prius with 115,000 miles. When I initially bought it at around 100,000 miles, I changed out the engine coolant (as well as the inverter coolant). During my last oil change, I noticed that I have some slight weeping around the engine water pump so I'm planning to replace that.

    Because I'm being a bit lazy, if I just remove the water pump without removing draining the coolant, would I lose almost as much coolant as if I've drained it? Should I just not be lazy? :)

    Thanks in advance.
     
    #1 triollie, Jan 9, 2018
  2. Bill the Engineer

    Bill the Engineer Senior Member

    Joined:
    Jun 6, 2013
    1,048
    2,278
    467
    Location:
    At the beach in Delaware...
    Vehicle:
    2010 Prius
    Model:
    IV
    Check thew Toyota dealer. There were a number of warranty replacements for that water pump that your car may not have received.
     
    #2 Bill the Engineer, Jan 9, 2018
  3. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    16,480
    8,397
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2008 Prius
    Model:
    II
    You will lose about 1/2 to 3/4 gallon of coolant. Much less than if you were to drain.
     
    #3 JC91006, Jan 9, 2018
(You must log in or sign up to post here.)