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Exhaust fumes in cab

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Ldeal, Nov 5, 2024 at 6:51 PM.

  1. Ldeal

    Ldeal New Member

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    2011 Prius
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    Three
    2011, seems today getting exhaust smell in the cab. Seems worse when letting off the gas pedal, coasting.. 186k miles. No codes. Gas mileage has dropped on this tank full also. Still runs smooth.
     
    #1 Ldeal, Nov 5, 2024 at 6:51 PM
  2. Kenny94945

    Kenny94945 Active Member

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    Vehicle:
    2016 Prius v wagon
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    Four
    Look for exhaust fume traces at the joints and/ or a crack.
    Check all the exhaust system bolts.

    I'd start there.
    Let us know what you find :)
     
    #2 Kenny94945, Nov 6, 2024 at 9:45 AM
  3. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Presumably nothing done recently, say head gasket? How about oil fill cap or dipstick: both in place? Any other maintenance? If you’re parking outside: check underneath, maybe someone trying to get the catalytic converter but failed.
     
    #3 Mendel Leisk, Nov 6, 2024 at 11:35 AM
  4. Ldeal

    Ldeal New Member

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    2011 Prius
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    Three
    Oil change recently, cap tight and dipstick all way in... I have noticed it really happens when let off gas coasting to stop sign. Gas milage dropped to like 38mpg too.
     
    #4 Ldeal, Nov 6, 2024 at 5:48 PM
    Mendel Leisk likes this.
  5. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Touring
    How long have you had it?
     
    #5 Mendel Leisk, Nov 7, 2024 at 6:52 AM
  6. Ldeal

    Ldeal New Member

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    2011 Prius
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    Three
    Owned for 9 months, 24k miles on ot since I have owned it
     
    #6 Ldeal, Nov 7, 2024 at 7:20 AM
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