2017 TRD Sport Engine Noise

Discussion in '2016 + Toyota Tacoma' started by Bunsoko, Jul 8, 2018.

  1. Bunsoko

    Bunsoko Member

    Hey Taco friends!

    First and foremost thanks for any help and advice in advance.

    I recently bought a 2017 Taco TRD Sport and it eventually started making a loud rattling noise at the front part of the engine. I researched that the new Atkinson engine in the 3rd Gens. can be a bit louder and the fuel injectors could have a rattle here and there to clean the carbon deposits. Okay fine... So I left it at that, but as time progressed the rattling noise persists for over 15+ mins (I timed it). After a few little pumps on the gas, it goes away but eventually comes back. The noise persists in neutral, parked, drive, etc. Any ideas?

    The video represents the rattling noise at the first part of the video, I pause the video and pump the gas and the second part of the video (14 secs) the truck is without overly loud rattling noise(s).

    Any help will be appreciated!
    Bogunn likes this.
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  3. Bogunn

    Bogunn Well-Known Member

    Welcome to the forum. Sounds like the Atkinson cycle motor to me. Mine sounds the same until warm up. It is a little loud but it may be where the video is taken in the engine compartment.
    If it’s bothersome you can take it to the dealership or a reputable shop that you trust. It shouldn’t cost anything for an experienced Toyota tech to take a listen. And it should be under warranty till 60k unless you have an extended warranty.
    Bunsoko and TheDonutAllStar like this.
  4. OP

    Bunsoko Member

    Thank you! I want to believe that it's just normal rattling but... I might take your advice and take it to the dealer.
    OR17TRD and Bogunn like this.
  5. OR17TRD

    OR17TRD Well-Known Member

    That doesn’t sound like my 2017. That sounds like something came loose.
    Bunsoko likes this.
  6. Bogunn

    Bogunn Well-Known Member

    It is a little loud but I figured it was because the video is taken in the engine compartment. It almost sounds like the valves but if there’s no power loss or other symptoms of engine failure or trouble it’s hard to say off hand.
    Of course the causes come to mind of: bad gas, low oil, wrong oil concentration, incorrect timing, etc.
    A truck that new shouldn’t have any of those issues minus the possibility of bad gas causing incorrect air/fuel mixture. Plus it’s the Atkinson cycle that sounds like a rattle trap up close anyway.
    Either way it’s best for the dealer (warranty) to diagnose so if there is an ongoing issue it will be well documented (like your poor white Taco).
    Bunsoko and OR17TRD like this.
  7. OR17TRD

    OR17TRD Well-Known Member

    I guess it would be good to know how many miles are on it. Maybe after 7500 miles it starts sounding more like that and by 20k it’s chitty banging down the road.
    Bunsoko, Crawdad and Bogunn like this.
  8. Bogunn

    Bogunn Well-Known Member

    Haha. Maybe so. I’m at 10k so I’ll have to wait and see.
    OR17TRD likes this.
  9. geekyadam

    geekyadam Well-Known Member

    So sounds like it was used when you bought it? Either way, does it have the OEM grille? Many (like myself) replace the grille with TRD Pro grille or something else. It sounds like maybe there's a chance something wasn't connected correctly or came loose? Maybe not but if I was experiencing the same thing you are, it'd be the first thing I'd check into, mainly because it sounds like coming from front of the engine. Worth a shot.
    If you can have someone else rev the engine up and down while you're in front hopefully you could zero in on the precise location of the sound.
    Bunsoko likes this.
  10. Crawdad

    Crawdad Well-Known Member

    Sounds like Toyota forgot to put main bearings in it! Mine doesn't sound like that either. I hear an occasional ticking but it goes away quickly.
    OR17TRD likes this.
  11. geekyadam

    geekyadam Well-Known Member

    Oh just realized there's a video. Yeah that's not the grille, disregard my previous post haha
    I have a 2017 TRD Sport also, I'll try to get in close to confirm if similar sounds.
  12. OP

    Bunsoko Member

    My Taco has 9k miles on it. Hopefully it doesn't sound worse at 20k miles! Lol
    OR17TRD likes this.
  13. OP

    Bunsoko Member

    I have replaced the OEM grille with the TRD Pro Grille and had someone Rev the engine to see if the noise was from something loose in the grille portion no success, rattle sounds like it's coming from the front engine mainly. Thank you for the suggestion!
  14. OR17TRD

    OR17TRD Well-Known Member

    Trip to the dealer.
    Bunsoko likes this.
  15. OR17TRD

    OR17TRD Well-Known Member

    That’s what mine does. It’s not noticeable enough for me to post a video yet.
    Bogunn and Bunsoko like this.
  16. GetRekd

    GetRekd New Member

    Sounds like an old steam engine!
    whippersnapper02 and OR17TRD like this.
  17. OR17TRD

    OR17TRD Well-Known Member

    whippersnapper02 likes this.
  18. arm76

    arm76 Active Member

    Atkinson. My '17 TRD Sport made in TX sounds the same. I'm at 7500km's and it's sounded like that since new.
    rwhunt, Bogunn and B-Man like this.
  19. plaster

    plaster Active Member

    Wait till rattling starts under the dash passenger side glove . Toyota dealer says we don’t here it . It’s continuously driving me mad it’s to the point I have considered getting rid off the truck
    Bogunn and Bunsoko like this.
  20. Bojangles

    Bojangles Well-Known Member

    Have you looked behind the glovebox?
    Bunsoko likes this.
  21. OR17TRD

    OR17TRD Well-Known Member

    That’s where they hide the rattle.
    RocketMan87, Bogunn and Bunsoko like this.

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