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  1. exstudent
    Post

    P1121 - Coolant Control Valve Replacement (with pics)

    The CHRS pump is $127.46 at Camelback Toyota online. I don't know what a dealer would charge for the part and labor. My guess is $300+. You can...
    Post by: exstudent, Feb 1, 2015 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  2. JC91006
    Post

    2012 Prius Heat Blowing Cold Through Center & Right Side Vents

    Have you checked if your coolant is at the right level? Is the 3 way coolant valve operating correctly?
    Post by: JC91006, Jul 8, 2022 in forum: Gen 3 Prius Technical Discussion
  3. laivindil
    Post

    P0117 code w/ overheat light, no power loss or actual overheating, and oddly no cabin heat

    Now I also have a pending P1121 code.... 3-way valve if I am correct?
    Post by: laivindil, Aug 31, 2020 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  4. m.wynn
    Post

    06 in light minty condition.

    Yup.
    Post by: m.wynn, Apr 21, 2019 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  5. Lioninstreet
    Post

    Is P1121 coolant valve related to the inverter water flow?

    Thanks for the reply JC, Would the defective 3 way valve cause the inverter coolant flow to stop?
    Post by: Lioninstreet, Nov 12, 2017 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  6. JC91006
    Post

    Brake, ABS, (!) dash lights are lit.

    You seem to need a new brake lamp switch and a new 3 way coolant valve.......for now
    Post by: JC91006, Jun 20, 2017 in forum: Gen 2 Prius Main Forum
  7. JC91006
    Post

    Really interesting noise - anyone heard it before? (w/ video)

    That pulsing noise you hear in the background is from a failing 3 way valve. Not sure if that's a contributing factor
    Post by: JC91006, Sep 21, 2016 in forum: Generation 1 Prius Discussion
  8. JC91006
    Post

    Is Someone Sawing Down a Tree Under My '09?

    do you have a check engine light on? Maybe it's the sound when the 3 way valve fails.
    Post by: JC91006, Jun 1, 2016 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  9. JC91006
    Post

    Triangle of Death suddenly on then off just as quickly!

    I would think your check engine light might be a problem with the 3 way coolant valve.
    Post by: JC91006, Jul 13, 2015 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  10. Tony714
    Post

    New noise after coolant fill

    3-way valve.
    Post by: Tony714, Dec 4, 2020 in forum: Gen 2 Prius Technical Discussion
  11. Jl2005prius
    Post

    No heat

    Thank you very much. It seems there is no or very low flow of hot coolant into the pump, as the hose remains cool, even though the input hose to...
    Post by: Jl2005prius, Mar 22, 2023 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  12. DanedN
    Post

    Sound coming from inverter area.

    NewTo test to see if it the valve could I unplug it to see if the sound stops? Is there another way to test? Thanks
    Post by: DanedN, Mar 21, 2023 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  13. TMR-JWAP
    Post

    CEL Hell - 2007 Gen 2 Trials and Tribulations

    I'm curious about replacing the 3 way valve. Every time I replace an Inverter Cooling Water Pump, I have to unbolt the 3 way valve to remove the...
    Post by: TMR-JWAP, Sep 27, 2019 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  14. bisco
    Post

    Sound coming from inverter area.

    not sure, can you feel vibration anywhere? try a stethoscope. maybe the 3 way coolant valve, idk.
    Post by: bisco, Mar 21, 2023 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  15. Patrick Wong
    Post

    2005 Prius Battery Replacement

    The valve is also in the engine coolant loop, BTW.
    Post by: Patrick Wong, May 4, 2015 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  16. JC91006
    Post

    Battery Not Charging and Rough Idle

    Common things that can cause check engine light on prius. 1. Loose gas cap 2. Bad 3 way valve 3. Bad catalytic converter
    Post by: JC91006, Jun 11, 2018 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  17. exstudent
    Post

    No cabin heat at all. Ideas ?

    Great. You did indeed drain the Inverter loop. As for no cabin heat and the dealer telling you to replace the 3-way coolant control valve, was...
    Post by: exstudent, Sep 30, 2018 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  18. JC91006
    Post

    Inverter pump?

    That sound points to the 3 way coolant valve, which also lights up the check engine light. Code p1121
    Post by: JC91006, Feb 21, 2018 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  19. JC91006
    Post

    What the heck is this noise? Coolant pump? (video)

    This is the sound of a bad 3 way coolant valve. If you scan your car for codes, you should get p1121
    Post by: JC91006, Sep 19, 2016 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  20. mr_guy_mann
    Post

    2006 Prius not responding to power button

    The only "valve" I can think of for the cooling system is the "3-way" control valve- which has nothing to do with the transaxle cooling anyway....
    Post by: mr_guy_mann, Dec 3, 2022 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
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