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When you do a coolant flush..

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by gobux, Oct 20, 2010.

  1. gobux

    gobux Junior Member

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    Do you go ahead and change the inverter pump? Every time?
     
    #1 gobux, Oct 20, 2010
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Well - the initial coolant change interval is at 100K miles. I think it would be reasonable to change the inverter coolant pump at that time (assuming it did not already fail.)

    Subsequent coolant change intervals are at 50K miles. That's probably too soon as a pump replacement interval.

    Its not clear whether current production 2G inverter coolant pumps are better or worse than older pumps.
     
    #2 Patrick Wong, Oct 20, 2010
  3. gobux

    gobux Junior Member

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    What happens if the inverter pump fails during driving?
     
    #3 gobux, Oct 20, 2010
  4. jdenenberg

    jdenenberg EE Professor

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    your Prius will detect an overheated Inverter and protect itself. I replaced my Inverter coolant pump (electric) and the ICE water pump at 150,000 miles.

    The replacement electric Inverter coolant pump is an improved design so it promises to last longer than the ones in a 2004 or 2005 Prius.

    I just do drain and refills, not flushes.

    JeffD
     
    #4 jdenenberg, Oct 20, 2010
  5. seilerts

    seilerts Battery Curmudgeon

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    No need to, but use an AirLift to bleed the system.
     
    #5 seilerts, Oct 20, 2010
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