Metallic sound when decelerating

  1. StickShiftMyButt

    StickShiftMyButt Senior Member

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    i created a case ticket with Honda. the company's website, not a dealership. this was what i wrote to them:
    2018 Civic Type-R
    light grinding noise when decelerating, and in gear only. the noise drops with the RPM. sounds like something spinning. braking does not have an effect on the sound. not really loud, so you can't hear it with the windows up, or going faster than 40 mph because the wind drowns out the noise. i have checked forums, and other type-r owners are reporting same issue. taken it to the dealership, and the techs there had no idea, and the same was reported from others on forums who have also taken it in to their dealerships. i was wondering if this is a normal sound or if it's a potential problem. it is not the LSD. it is not the brakes. sounds like it could be something turbo-related, but not sure.

    https://www.civicx.com/threads/high-pitched-light-grind-in-2nd-3rd-coasting.13946/page-2

    https://www.civicx.com/threads/metallic-sound-when-decelerating.22390/page-2
     
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  2. CincyTypeR

    CincyTypeR Senior Member

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    Where did you submit that?
     
  3. StickShiftMyButt

    StickShiftMyButt Senior Member

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  4. StickShiftMyButt

    StickShiftMyButt Senior Member

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    whether that was the right place to submit a mechanical question, i'm unsure, but beyond forums and dealerships, i'll throw out the bait into any lake with fish and see what i reel in.
     
  5. FK8_Ger

    FK8_Ger Senior Member

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    I have the same noise on my 2018 fk8 with 310 Miles.. The noise came today.
     
  6. mmcglasson

    mmcglasson Member

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    I also notice the same noise. 2018 CTR - mileage: 3750.
     
  7. 00typer1071

    00typer1071 Senior Member

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    Do you guys here the sound at all times or only when the car is cold?

    Mine seems to go away after driving the car for about 10 minutes.
     
  8. StickShiftMyButt

    StickShiftMyButt Senior Member

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    Noise is still there for me even when the engine warms up
     
  9. FK8_Ger

    FK8_Ger Senior Member

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    My friends fk8 does it.. Both of them.
     
  10. gabe187

    gabe187 SmokyTypeR

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    Same here. I seems like is coming from passages side of the engine. It does go away after warm up.
     
  11. 00typer1071

    00typer1071 Senior Member

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    #41 00typer1071, May 9, 2018
    Last edited: May 9, 2018
    I started my car and I had it idle for good 15-20 minutes and the sound was still there when I started driving. This would mean that the sound goes away after the car is driven for few miles not and because it is warmed up.
    Also, I'm starting to think that this is related to some bearing.
     
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  12. gabe187

    gabe187 SmokyTypeR

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    It does sound like bearings.
     
  13. the8rotor

    the8rotor Senior Member

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    I have had the same issue y'all have since I received my ctr last June. To me it sounds like a bearing from an idler pulley. Mine has not gotten any worse or better.
     
  14. 00typer1071

    00typer1071 Senior Member

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    Got my answer this morning. We ran the car on a rack at a Honda dealer where my buddy is a service advisor. Sound comes from inside of the wastegate (confirmed with the stethoscope). According to their Master Tech all Honda Turbos sound like that....or in his exact words they sound like shit..
     
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  15. ParkwayDrive13

    ParkwayDrive13 Senior Member

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    This is what I was thinking it was... Glad you got it figured out for yours, and that it's nothing major.
     
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