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How long will prius crank if no start is detected?

Discussion in 'Gen 2 Prius Main Forum' started by Prius92, Jul 31, 2024 at 9:59 AM.

  1. Prius92

    Prius92 Member

    Joined:
    Sep 14, 2019
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    Location:
    Iowa
    Vehicle:
    2008 Prius
    Model:
    II
    Swapped a replacement engine. I think the hybrid battery might be low.
    Go to start it, all I get is a clunk and nothing. Won't even turn over.
    If the engine had been sitting a while, could it need rotated by hand to free anything up?
    I've asked 2 dealers how much it would cost to have the hybrid battery charged, but they all keep telling me "the 12v battery starts the car" which isn't correct.
    So my question is, say you took the injectors and plugs out, how long would it try to rotate it before stopping?
     
  2. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
    6,249
    5,949
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    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    If the car goes to ready condition, and you hear a clunk as the engine tries to start, you have a big problem. Something in the driveline (engine or transaxle) is seized and preventing the engine from turning.

    Did you turn the new engine by hand prior to installing it? I have a spare engine, still mounted to its transaxle, slated for installation this fall, and I can rotate it with a socket/ratchet with very little effort.