Metallic Rattling Noise When ICE Under Load

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by shaltbecome, Jan 23, 2026 at 1:04 AM.

  1. shaltbecome

    shaltbecome New Member

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    Location:
    Louisiana, United States
    Vehicle:
    2008 Prius
    Model:
    II
    Hi all, I recently purchased an 08 Prius with 115k miles. When the ICE is running under load (charging battery or first minute or so during a cold start) there's a metallic rattling noise coming from underneath the car. Does anyone know what would cause this?

    Here's a video of the sound (at 0:56 the noise goes away):

     
    #1 shaltbecome, Jan 23, 2026 at 1:04 AM
  2. saneesh8

    saneesh8 Member

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    Location:
    Allen, TX
    Vehicle:
    2009 Prius
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    One
    I think it is normal. Not so loud. Can you record it from the front of the car? Oil level is good? Also only at cold start?
     
    #2 saneesh8, Jan 23, 2026 at 10:19 AM
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