2010 too far gone?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by grace_has_a_crap_prius, Jan 12, 2026 at 9:33 PM.

  1. grace_has_a_crap_prius

    grace_has_a_crap_prius New Member

    Joined:
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    Vehicle:
    2010 Prius
    Model:
    Four
    image-1768268097440.jpg IMG_20260112_204121426.jpg

    Hi guys!
    I have a 2010, the car was shaking and I took it to get it checked out and they said it was one of the Pistons miss firing, so I changed my spark plugs but it did nothing, so I decided to clean the EGR valve. When I was trying clean the EGR valve and take the throttle body off the air intake manifold to remove it My Vacuum switching valve assembly that's off of the throttle body ripped off, the wires pulled out of the sensor/plug. I am planning on trying to reattach, but I'm not sure which side the wires go into. No idea what I'm talking about...help.

    Should I just start looking at facebook market place for a new car?
     
    #1 grace_has_a_crap_prius, Jan 12, 2026 at 9:33 PM
    Last edited by a moderator: Jan 12, 2026 at 11:42 PM
  2. Tombukt2

    Tombukt2 Senior Member

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    Yes another not gen 3 or 4 if possible .. gen something known well or gen 5 we don't know lotta things came together quickly it seems . It's engine didn't really seemingly go so well in other models. Detuned for gen 5 . Will see.
     
    #2 Tombukt2, Jan 13, 2026 at 6:08 AM
    grace_has_a_crap_prius likes this.
  3. ChapmanF

    ChapmanF Senior Member

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    Vehicle:
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    [​IMG]

    Nothing like trying to tell a violet wire from a black one in bad light....

    On the bright side, I doubt the solenoid will mind even if you get them reversed. It's not like other things that would care.
     

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    #3 ChapmanF, Jan 13, 2026 at 9:00 AM
  4. bisco

    bisco cookie crumbler

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    how many miles on her?
     
    #4 bisco, Jan 13, 2026 at 2:12 PM
  5. grace_has_a_crap_prius

    grace_has_a_crap_prius New Member

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    Vehicle:
    2010 Prius
    Model:
    Four
    Awesome this is so helpful thank you! Also sorry for the terrible lighting could've waited till the morning...

    223500
     
    #5 grace_has_a_crap_prius, Jan 13, 2026 at 3:01 PM
    Last edited by a moderator: Jan 15, 2026 at 12:15 AM
  6. mjoo

    mjoo Senior Member

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    #6 mjoo, Jan 17, 2026 at 10:02 AM
    Last edited: Jan 17, 2026 at 10:33 AM
  7. rjparker

    rjparker Tu Humilde Sirviente

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    Was it a Toyota dealer who said it needed spark plugs? Or was it some other shop?
     
    #7 rjparker, Jan 17, 2026 at 11:29 AM
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