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Function of heat shield for rear muffler?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by bnprius, Nov 19, 2024 at 3:59 PM.

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  1. bnprius

    bnprius Our Prius at 200K

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    A part recently fell off our 2007 Prius. From parts diagrams, it is the rear mufller heat shield, part 58327-47010. Does anyone know if this part serves a critical function? I'm trying to decide whether to replace it. Our Prius recently joined the Priuschat 200K club, and we hope to make it to 300K. Thanks for your advice.
     

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    #1 bnprius, Nov 19, 2024 at 3:59 PM
  2. Kenny94945

    Kenny94945 Active Member

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    Critical function?

    On my V, the 12 volt battery compartment is over the muffler.
    But a critical part?
    As you have the part, I would try to fabricate some brackets, add washers and bolts, or whatever for a few dollars and reinstall

    Good luck :)
     
    #2 Kenny94945, Nov 19, 2024 at 4:10 PM
  3. bnprius

    bnprius Our Prius at 200K

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    Kenny,

    Thanks for your reply, but mine is a Gen 3, which has its 12-volt battery up front, under the hood.

    Far as I know, there are only two options for what is above the rear muffler: 1) the gas tank or 2) the big battery for the hybrid system.

    Neither would be good to overheat. So, I'll order a new part (around $80) and have the dealer replace it on my upcoming visit for its 205,000 maintenance.

    Bill Nolting
     
    #3 bnprius, Nov 19, 2024 at 7:51 PM
  4. ASRDogman

    ASRDogman Senior Member

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    The 12v battery for the "3rd" generations Prius, is in the trunk on the passenger side.
    Perhaps you have a 2nd generation...
    That is a "HEAT" shield. It is there for a reason.


     
    #4 ASRDogman, Nov 19, 2024 at 8:09 PM
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  5. ChapmanF

    ChapmanF Senior Member

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    This puzzles me for a couple of reasons, 1, didn't you say 2007, which is gen 2, and 2, neither gen 2 nor gen 3 has the 12-volt battery under the hood.
     
    #5 ChapmanF, Nov 19, 2024 at 8:28 PM
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