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Is it ok to clean the throttle body on a 2009 prius?

Discussion in 'Gen 2 Prius Technical Discussion' started by Liam howard, Aug 3, 2020.

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  1. Liam howard

    Liam howard Junior Member

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    Hello,

    I wanted to know if anyone ever had an issue from cleaning the throttle body on a 2009 Prius, specifically, by opening the butterfly. I have read that on some vehicles it can break the throttle body and/or you will have to go through a manual relearn process. My question is: Does the Prius automatically adjust the throttle body and recalibrate itself? If you have had any issues what were they and how did you resolve them?

    Thank you
     
    #1 Liam howard, Aug 3, 2020
  2. fotomoto

    fotomoto Senior Member

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    Although it should go without saying, just make sure the car is off and you'll be fine.
     
    #2 fotomoto, Aug 3, 2020
    Liam howard and SFO like this.
  3. Liam howard

    Liam howard Junior Member

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    Thanks. I also disconnected the 12v just in case that makes any difference. I have heard nightmare stories about busting these things while cleaning them.
     
    #3 Liam howard, Aug 3, 2020
  4. fotomoto

    fotomoto Senior Member

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    Although there are minor downsides (losing memory settings for example), it's always a prudent move; especially on an electric vehicle. Many of the FSM procedures list this as Step 1.

    GOOD LUCK!
     
    #4 fotomoto, Aug 3, 2020
  5. ChapmanF

    ChapmanF Senior Member

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    Power off is fine for the throttle body. It moves easily; I'm having trouble imagining the story behind any "busted the throttle body" nightmares.

    Now if the power is on, it has a target throttle angle it is trying to hold, so you won't find it easy to move then.
     
    #5 ChapmanF, Aug 3, 2020
    Mendel Leisk likes this.
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