Engine decel rattle

Discussion in 'Issues, Repairs, Warranty, TSB, Recalls' started by TnWHTMARE, Apr 1, 2019.

  1. TnWHTMARE

    TnWHTMARE Well-Known Member

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    Hey guys,
    Does anyone have a chain/vct rattle on engine decel when cold on your 18? It seems to be under 3K rpm and is pretty pronounced. I recall seeing a TSB for the F150 coyote for a very similar issue. Here is a video link to the noise. Fast forward to 1:25 through 1:37 or so. This is the same video I did to record the tick. I searched and didn't find a specific mention of this particular noise. Could have missed it though.
     
  2. gmupatriot

    gmupatriot Well-Known Member

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    Yup, my 2018 Mustang GT has that rattle when cold. Cant ignore it, windows up or down I can hear it. However, it goes away withing a couple of minutes of driving. I have close to 24,xxx miles on the car and so far no issues other than hearing this rattle.
     
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  3. OP
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    TnWHTMARE

    TnWHTMARE Well-Known Member

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    Same here, goes away after warm up. I think I'll just put it on the "just ignore that noise" list. Sheesh, cold starts are getting brutal.:crackup:
     
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  4. Cobra Jet

    Cobra Jet Well-Known Member

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  5. Tone Everready

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    How do both of your cars sound when up to temperature?
     
  6. OP
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    TnWHTMARE

    TnWHTMARE Well-Known Member

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    1. Bascially, what you hear in my video is what it sounds like when warm. Except for the decel chain/vct rattle. It goes TICK, TICK, tick, tick... :)
     
  7. Tone Everready

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    So, the BBQ tick doesn't change at all? How many miles on the car? When did this start? Did it all start suddenly, or was it gradual?
     
  8. OP
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    TnWHTMARE

    TnWHTMARE Well-Known Member

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    It started when it had around 900 or so miles. It has 5000 now. No, cold or hot, doesn't matter. Seems to do it more when hot than cold and occasionally it doesn't do it at all. But thats the exception. As far as how it started, I just noticed it one morning and it hasn't stopped since.
     
  9. Tone Everready

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    Have you experimented with oil? Is it worse with the AC on?
     
  10. OP
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    TnWHTMARE

    TnWHTMARE Well-Known Member

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    Made the same noise on the factory oil, Mobil1 5w20 and Driven DI30. Have not noticed any variables that seem to impact the noise.
     
  11. Tone Everready

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    That's maddening.
     
  12. OP
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    TnWHTMARE

    TnWHTMARE Well-Known Member

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    What is maddening to me is just not knowing what the actual causation is. I dont particularly like my tick, slap and rattle noises but as long as it stays in one piece, I will deal with it. Its just crazy to me that the exact causes of these noises (except maybe the slap) haven't been determined.
     
  13. Tone Everready

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    I hear you, brotha. I keep holding on to hope that someday there will be a concrete cause.
     
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    TnWHTMARE

    TnWHTMARE Well-Known Member

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    #14 TnWHTMARE, Apr 2, 2019
    Last edited: Apr 2, 2019
    I could be wrong but the interview that Ken from PBD did with MMR still didn't seem to answer the tick question...just the slap. Its unfortunate that we have to deal with these types of noises from 40K cars...but, it is what it is i guess.
     
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  15. Coyote Red

    Coyote Red Well-Known Member

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    I have a gen 2 Coyote but have always used Lucas oil stabilizer when I change oil. I've read Ceratec may help the tick.
     
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  16. GT Pony

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    Most guys using Ceratec report that it cures the BBQ/typewriter tick. My theory on the BBQ tick is excessive rod side clearance and/or excessive crankshaft end play. A few guys here with the BBQ tick found their rod side clearance out of factory spec.

    The car in the video in Post #1 sounds like it's got more than just the BBQ tick going on ... as heard with some engine revs.

     
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  17. geep81

    geep81 Well-Known Member

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    My '19 GT built in December of '18 has this deceleration rattle sometimes.
     
  18. Paddy_0511

    Paddy_0511 Active Member

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    I had is when it was cold, but now i have it all the time.
    Ford said to me its normal...what can i do? Do you have it too all time? It getting worse...
     
  19. Mazman

    Mazman Well-Known Member

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    I have the same hot and cold...

     
  20. Paddy_0511

    Paddy_0511 Active Member

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    nothing new? My dealer said the second time to me, i is normal. Ford doing nothing....:(
     
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