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Bad water pump P0A93 coolant loss in replacement process?

Discussion in 'Gen 2 Prius Main Forum' started by nancytheprius, Jun 28, 2024 at 10:22 AM.

  1. nancytheprius

    nancytheprius Active Member

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    Have lights on dash and code P0A93 from my techstream. Looked in the inverter coolant reservoir and no movement. Hoping to replace the pump this weekend. Will I lose all my coolant? How much can I expect to lose in this process? If I can get away with only purchasing one bottle I’d be happy (current coolant isn’t very old). Let me know thanks!

    2006 Prius with 121k miles
     
    #1 nancytheprius, Jun 28, 2024 at 10:22 AM
  2. mr_guy_mann

    mr_guy_mann Senior Member

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    Option 1, use "hose pinch off" pliers to squeeze both hoses shut before you take them off the old pump. You only lose a cup or so of coolant that way, and usually don't have problems with air in the system.

    Option 2, drain the inverter coolant into a (clean)pan before removing the pump - be sure to open the correct drain plug on the transmission. Refill and air bleed the system afterwards.

    Option 3, watch some people on youtube who do neither and make a mess spilling coolant all over the place.

    Posted via the PriusChat mobile app.
     
    #2 mr_guy_mann, Jun 28, 2024 at 10:48 AM
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  3. nancytheprius

    nancytheprius Active Member

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    Purchasing hose pinch pliers!! Just what I needed!!! Love this forum.

    Thank you
     
    #3 nancytheprius, Jun 28, 2024 at 10:56 AM
  4. ChapmanF

    ChapmanF Senior Member

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    If I'm remembering the capacity of the inverter/transaxle coolant loop right, one bottle is plenty even if you lose it all.

    It's the engine coolant loop that takes more.

    However, comma, I don't have the capacity spec in front of me at the moment. Maybe look it up rather than taking my word for it.
     
    #4 ChapmanF, Jun 28, 2024 at 10:56 AM
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  5. nancytheprius

    nancytheprius Active Member

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    Got it swapped in 2 hours with only wrenches. It’d be quicker with better tools
     
    #5 nancytheprius, Jun 29, 2024 at 10:47 PM
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