AC goes 'CLUNK' when shut off

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Gdngrn, Aug 15, 2025 at 4:26 PM.

  1. Gdngrn

    Gdngrn New Member

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    Location:
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    Vehicle:
    2007 Prius
    Model:
    Four
    My 2007 Prius just had a new air compressor installed at my Toyota dealership. On the way home (over 150 miles), a tractortrailer tire exploded in front of me on the highway and ate up the front of my car. My local auto body fixed it all up but now when I shut the AC off before turning off the car, after a few secinds, I hear a loud 'CLUNK' from behind the glovebox area. The autobody man assures me that's the normal sound of the compressor closing its 'door' when I shut it off. Is this right? I didn't turn off the AC at all before the accident so I don't know if the CLUNK happened prior to it. Ty everyone
     
  2. Tombukt2

    Tombukt2 Senior Member

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    Location:
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    Base
    More than likely it is the damper door moving. But I forth think they have a dedicated rest position. As motor wears the unit hunts for the selected position
     
  3. Gdngrn

    Gdngrn New Member

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    Location:
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    Vehicle:
    2007 Prius
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    Four
    Is this sound a sign something needs to be fixed, then? Ty.