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sqeals like a "stuck pig!"

Discussion in 'Gen 2 Prius Main Forum' started by Green Cat, Mar 9, 2008.

  1. Green Cat

    Green Cat New Member

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    We've had our Prius for a little over a year. It started squealing about 4 months ago. It happens when we turn off the car. It gets rather loud at times. We've taken it to the dealer and they said they couldn't get it to do it. Now it is really loud and consistent. We've even recorded it. (The dealer just seems to humor us when we tell them about it.)
    Does anyone else have this noise? I know what it's supposed to sound like, ours is like a "stuck pig"...it really squeals! It doesn't have that nice hmmm like it used to.
     
    #1 Green Cat, Mar 9, 2008
  2. Bob64

    Bob64 Sapphire of the Blue Sky

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    If it occurs before and after you turn on and off the car, its the coolant transfer pump.

    Note: the pump usually turns on if the coolant in the thermos is hotter then the coolant in the engine.
     
    #2 Bob64, Mar 9, 2008
  3. V8Cobrakid

    V8Cobrakid Green Handyman

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    sounds like the pump to me :)
     
    #3 V8Cobrakid, Mar 9, 2008
  4. Bill Merchant

    Bill Merchant absit invidia

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    The coolant transfer pump gets much noisier in cold weather, but noise is not a failure. You may want to complain about the coolant transfer pump noise to the dealer and have them note your complaint in their records. There have been a few failures after 36,000 miles, so documenting the noise may help get a warranty replacement if it really dies. Watch out if your Prius stops making the noise, the pump may have stopped functioning. This is not a safety issue, since the car will run fine without the thermos bottle of hot coolant. It is an emissions issue since the hot coolant gets the ICE warm faster.
     
    #4 Bill Merchant, Mar 10, 2008
  5. Zaxxon

    Zaxxon New Member

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    Mine (2007, just under 27,000 miles) has the same issue. I took it in last month and the dealer replaced some part of the pump system, but it didn't help. I'm living with it for now, but will bring it up again at the 30,000 mile service.
     
    #5 Zaxxon, Mar 10, 2008
  6. bredekamp

    bredekamp Member

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    #6 bredekamp, Mar 10, 2008
  7. Barb L

    Barb L New Member

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    My Prius also makes noise when I turn it off. Mine sounds like either a goat or a sheep bleeting noise. It does not do it everytime I put it in the garage, but very frequently. I am glad to hear that I am not crazy in hearing this. I don't know if it is worth mentioning to the dealer or not.
     
    #7 Barb L, Mar 10, 2008
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