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Sudden engine noise

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by SteveTaylor, Jun 19, 2017.

  1. SteveTaylor

    SteveTaylor Junior Member

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    Hello,

    I had a full service done on my Prius last week. It has done just over 175k miles and a few days ago the engine started making a growling noise. It is mainly when I am accelerating (but not in battery only mode), it contains to growl if I put it in B to slow down.

    I have had the bearing changed in not front tyres recently and I had the hybrid battery replaced last year when it died a death.

    Has anyone come across this sort of thing before? I was guessing an exhaust issue but I am hardly an expert on cars!!!
     
    #1 SteveTaylor, Jun 19, 2017
  2. bisco

    bisco cookie crumbler

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    that's not a bad guess. how is the oil level?
     
    #2 bisco, Jun 19, 2017
    valde3 likes this.
  3. SteveTaylor

    SteveTaylor Junior Member

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    Oil level is good ... which sucks because that would be a cheap and easy thing to fix :-(
     
    #3 SteveTaylor, Jun 20, 2017
  4. bisco

    bisco cookie crumbler

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    how is the 12v health?
     
    #4 bisco, Jun 20, 2017
  5. andrewclaus

    andrewclaus Active Member

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    I'm guessing you've tried to reproduce it by revving the engine while in park? It only happens under load?

    Mechanic's stethoscopes are inexpensive, or you can use a length of heater hose, to check exhaust joints.

    Have you looked at the transaxle oil? Are the CV boots intact?
     
    #5 andrewclaus, Jun 21, 2017
    SFO likes this.
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