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3rd Gen vibration tips.

Discussion in '3rd Gen. Tacomas (2016-2023)' started by HarcourtOrmand, Apr 15, 2023.

  1. Apr 15, 2023 at 9:48 AM
    #1
    HarcourtOrmand

    HarcourtOrmand [OP] Fmr 20 year ASE Master tech, now master of data.

    Joined:
    Mar 21, 2023
    Member:
    #420651
    Messages:
    37
    Gender:
    Male
    First Name:
    Justin
    Cherokee GA
    Vehicle:
    2023 Ice Cap TRD Pro
    CaliRaised Cat shields, OTT 9.0 Tune, TRD Intake, 4WP Rear bumper, Wireless AA, Morimoto Taillights, Morimoto Ditch lights, 4WP rock sliders, Interior noise reduction.
    I know there are several vibration threads already but I didn't see many referencing this particular flavor.

    Had a vibration when driving that would start at 55MPH and keep on until about 62MPH. It would go away above 62 and return at 70.

    This is known as a harmonic vibration. Speed-specific vibrations are due to harmonic resonance becoming severe at certain speeds (Rotational frequencies). So if you notice a vibration that comes and goes at certain speeds, it's going to be a wheel/tire/assembly issue.

    Vibrations that change with either power applied (Step on the gas) or power removed (Coasting) are going to be typically driveline vibrations (From the transmission output shaft to the wheel bearings). Now, this is not a 100% diagnosis of those but, 9 times out of 10 that's where you'll find the problem.

    I just picked up my Pro from the dealer. After fighting with them (Tech said vibration normal for 4x4 and AT Tires, refused to even put the tires on the balancer because he was a lazy idiot) I spoke to the service manager and described to him exactly what the issue is, referenced my years of experience as an ASE Master Tech and since most Service Managers have never worked on cars, explained exactly what was written above.

    He had the truck pulled back in, threw it up on the balancer and ALL 4 TIRES WERE BAD. Road force on the least bad tire was 57Lbs, worst was 88Lbs. Road force assembly spec for most passenger vehicles is <20Lbs.

    4 new Goodyear Wrangler Duratracs, I suspect the originals were flat spotted pretty bad from sitting, I didn't get to look at the machine output on the originals but at 88Lbs, that's pretty close to a square tire.

    In closing, if you bought a new one or even a used one and you have a vibration as I've described; Go take it in and tell them to throw the tires on the road force balancer. You'll likely find that the tires have issues (Might not be from sitting, Goodyears have always been hit or miss on quality in my experience).

    Good luck!

    P.S. Also, warranty replaced the RF Fox strut because it was completely dead. Took 3 weeks to get and the parts COST is just over $1060.
     
    TA2016, GONE FISHIN' and TriniPhantom like this.
  2. Apr 15, 2023 at 10:00 AM
    #2
    HarcourtOrmand

    HarcourtOrmand [OP] Fmr 20 year ASE Master tech, now master of data.

    Joined:
    Mar 21, 2023
    Member:
    #420651
    Messages:
    37
    Gender:
    Male
    First Name:
    Justin
    Cherokee GA
    Vehicle:
    2023 Ice Cap TRD Pro
    CaliRaised Cat shields, OTT 9.0 Tune, TRD Intake, 4WP Rear bumper, Wireless AA, Morimoto Taillights, Morimoto Ditch lights, 4WP rock sliders, Interior noise reduction.
  3. Apr 15, 2023 at 4:46 PM
    #3
    4x4junkie

    4x4junkie Well-Known Member

    Joined:
    Dec 19, 2018
    Member:
    #276335
    Messages:
    929
    So Calif. (SFV)
    Vehicle:
    2018 TRD Sport ACLB MT
    Better fix would be Toyo A/T IIIs. I literally had zero luck getting a (bad)year tire that was round (or stayed round).
     
  4. Apr 15, 2023 at 4:49 PM
    #4
    HarcourtOrmand

    HarcourtOrmand [OP] Fmr 20 year ASE Master tech, now master of data.

    Joined:
    Mar 21, 2023
    Member:
    #420651
    Messages:
    37
    Gender:
    Male
    First Name:
    Justin
    Cherokee GA
    Vehicle:
    2023 Ice Cap TRD Pro
    CaliRaised Cat shields, OTT 9.0 Tune, TRD Intake, 4WP Rear bumper, Wireless AA, Morimoto Taillights, Morimoto Ditch lights, 4WP rock sliders, Interior noise reduction.
    I mean you're not wrong but, I was forced to buy those tires (non-optional dealer (port) installed option, thanks SET) . They can swap out all the bad ones until it doesn't drive like something my wife has in a box.
     

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