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Exhaust smell at First start of car in the morning during cold

Discussion in 'Prius v Technical Discussion' started by Ohid, Jan 17, 2022.

  1. Ohid

    Ohid Member

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    2015 Prius Alpha
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    My Prius Alpha 2015 has exhaust smell at the first start in the morning during cold. Here not very cold. Only 10-20°C. The smell last only 1-2 minutes and not found inside the car. Is it normal at the cold? What is your experience?
     
    #1 Ohid, Jan 17, 2022
  2. jzchen

    jzchen Newbie!

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    Park the car facing the opposite direction if possible. See if there is still a smell...

    REVVL V+ 5G ?
     
    #2 jzchen, Jan 17, 2022
  3. Ohid

    Ohid Member

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    Its engine normally start after moving from the garage. First few minutes it ran on battery. So this smell found outside of garage and mostly near the tail pipe.
     
    #3 Ohid, Jan 18, 2022
  4. sam spade 2

    sam spade 2 Senior Member

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    Then why do you care ?
    Yes, likely normal for the actual exhaust to look and smell slightly different when started cold.
    The fuel mixture will be slightly richer and the catalytic converter will be cold and not doing much.
     
    #4 sam spade 2, Jan 18, 2022
    Air_Boss, Ohid and Mendel Leisk like this.
  5. Ohid

    Ohid Member

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    Thanks.
     
    #5 Ohid, Jan 19, 2022
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