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Vibration while idling

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by ware, Jan 31, 2017.

  1. ware

    ware New Member

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    Hello fellow prius drivers,
    I've noticed something that does not feel normal to me:
    Sometimes when the car is warmed up and ICE re-starts there is vibration in the cabin, I can feel it through the seat and steering wheel. I have also noticed strange popping sound from exhaust while idling (no necessarily when vibration occurs). The engine seems louder at acceleration (it was not like that when I bought the car). There's a short video:


    Could this be misfire ?

    Background about car:
    EU model, 142000km, second owner, no codes, recently changed spark plugs (DIY) to battle this problem - did not help. It is winter here, so temps are around 0C. Mileage is around 6.5-7L/100km mostly city driving, short distances.

    Appreciate all the help I can get.
     
    #1 ware, Jan 31, 2017
  2. b100

    b100 Member

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    Ok, get the codes read. If there a a misfire you should have misfore codes stored.
    Oil level ok?
    Rest of fluids ok?
    When changed sparkplugs?
    Cleaned throttlebody?
    All those things can make your car idle bad.
     
    #2 b100, Jan 31, 2017
  3. ware

    ware New Member

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    No codes, Oil ok, fluids ok, sparkplugs changed 2 weeks ago, tb and MAF cleaned.
     
    #3 ware, Jan 31, 2017
  4. b100

    b100 Member

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    Do you take it for a long trip sometimes? Sometimes it will help to drive a long distance at high speed to get al the fog out of the engine and oil. Car will may run smoother after that.
     
    #4 b100, Jan 31, 2017
  5. ware

    ware New Member

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    Every other weekend I go on a 80km round trip at around 100km/h. I guess I will drive it as is until there are some codes
     
    #5 ware, Jan 31, 2017
  6. jerrymildred

    jerrymildred Senior Member

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    Strange that there are no codes. It's rare these days, but could it possibly be bad gas?
     
    #6 jerrymildred, Jan 31, 2017
  7. ware

    ware New Member

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    I just went through the bills and I see that I ordered DENSO VK16 spark plugs (as opposed to SK16R11). VK16 seem to have 1.1mm gap (which as far as I know is what TOYOTA recommends). Is there any chance my issues are related to the spark plugs that I've just put in ?
     
    #7 ware, Jan 31, 2017
  8. andrewclaus

    andrewclaus Active Member

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    Check engine/transaxle mounts, and look for an exhaust leak? Is the exhaust the normal color, odor and density? By all means, double check the spark plugs.
     
    #8 andrewclaus, Jan 31, 2017
  9. dolj

    dolj Senior Member

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    #9 dolj, Jan 31, 2017
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