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Heater core flush

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Daniel Richard, Dec 15, 2019.

  1. Daniel Richard

    Daniel Richard Member

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    I might have to flush the heater core. What direction does the coolant flow? Does it flow from exhaust heater > heater core > EGR cooler? Or the other way around, EGR cooler > heater core > exhaust heater?
     
    #1 Daniel Richard, Dec 15, 2019
  2. Daniel Richard

    Daniel Richard Member

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    Hey idiot do some research before you post!

     
    #2 Daniel Richard, Dec 15, 2019
    ThePrius11, Raytheeagle and elementnomore like this.
  3. Mendel Leisk

    Mendel Leisk Senior Member

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    I was thinking to call you out for the abusive tone, then realized who you're talking to, lol.

    If the clogging is due to something like Stop-Leak, a 50/50 mix of water/white vinegar is supposed to very quickly dissolve the gunk.
     
    #3 Mendel Leisk, Dec 15, 2019
    ThePrius11, bdc101 and elementnomore like this.
  4. Daniel Richard

    Daniel Richard Member

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    Not sure what is going on. I bought it this way. Hope they didn’t put some “head gasket in a can” In the coolant system. I guess I will find out soon enough.
     
    #4 Daniel Richard, Dec 15, 2019
    Mendel Leisk likes this.
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