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Hum or Vibration during acceleration at Highway Speeds

Discussion in '2nd Gen. Tacomas' started by mhagen, Mar 9, 2010.

  1. Mar 9, 2010 at 5:20 PM
    #1
    mhagen

    mhagen [OP] Member

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    Orange County, CA
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    08 DC Sport 4X4 long bed
    I am a new user and figured I would ask this question before I went down to the dealer. I have a 2008 Dual Cab 4x4 Long bed with automatic transmission and 4.0. I purchased used and currently have about 20k mikes.

    Anyways, I have a hum...probably more of a vibration that occurs only during acceleration and only at highway speeds. It seems to occur around 2100 rpm and will disappear when I shift to 4th and the RPM increases. It will also disappear if I continue to accelerate in 5th and the rpm increases above 2400-2500rpm.

    I could happen at other times, but I really notice it under the above conditions.

    Like the Truck, but it is really annoying as I spend most of my time at these conditions.
     
  2. Mar 9, 2010 at 5:22 PM
    #2
    CAMZTRD

    CAMZTRD Well-Known Member

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    steve
    hampton, va
    Vehicle:
    2006 DC TRD Off-Road 4x4
    billy 5100's @ 2.5 w/ 1/4 spacers, toytec aal, LR UCA's, revotec headlights,revotec taillights, lamin-x fogs, color matched grille and rear bumper, undercover, bed-extender, black nerf bars, scan gaugeII , afe drop in, 50 series flowmaster, 6000k bi-xenon hids, more to come.......
    sounds like a bearing in the transmisson. you have a manual right..?
     
  3. Mar 9, 2010 at 5:23 PM
    #3
    tammikm

    tammikm Well-Known Member

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    canada
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    n/a
    i have a slight vibration at about 100-110 kms/hr about 2100 rpm as well, i can feel it in the floor with my left foot on the rest...is this what u are feeling? I think its normal, ive learned to live with it......mine is an automatic
     
  4. Mar 9, 2010 at 5:24 PM
    #4
    CAMZTRD

    CAMZTRD Well-Known Member

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    steve
    hampton, va
    Vehicle:
    2006 DC TRD Off-Road 4x4
    billy 5100's @ 2.5 w/ 1/4 spacers, toytec aal, LR UCA's, revotec headlights,revotec taillights, lamin-x fogs, color matched grille and rear bumper, undercover, bed-extender, black nerf bars, scan gaugeII , afe drop in, 50 series flowmaster, 6000k bi-xenon hids, more to come.......
    yours sounds like a wheel bearing.
     
  5. Mar 9, 2010 at 5:28 PM
    #5
    DeathBound

    DeathBound Well-Known Member

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    Mississippi Gulf Coast
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    It's not normal. Mine doesn't do it and it shouldn't.
     
  6. Mar 9, 2010 at 5:30 PM
    #6
    mhagen

    mhagen [OP] Member

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    It an automatic. I don't feel anything on the floor
     
  7. Mar 15, 2010 at 7:40 AM
    #7
    kulitxplod

    kulitxplod Well-Known Member

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    mine is an auto with only 4400 miles, 2010 prerunner, it hums at 1900 to 2000 or so as well
     
  8. Mar 15, 2010 at 9:25 AM
    #8
    Peru

    Peru Well-Known Member

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    Redmond WA
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    none
    Mine too at 60 mph give ir take 3
    miles. I've assumed the tires. In my case if it where a bearing it would do it accross the entire speed range

    like Honda accord 2003 my wife owned -- there is alot of road noise that comes up from the road. I want to sound proof the floor board
     
  9. Jan 29, 2011 at 8:38 AM
    #9
    85GT 79FJ40

    85GT 79FJ40 Well-Known Member

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    Ken
    New Hampshire
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    If you search some you will likely find that this is pretty normal on V6 automatics. Toyota has a TSB for the shuddering around 25MPH (supposedly a new rear trans mount fixes it) but I have found nothing about the 1800-2100 rpm vibration in 5th. My 05 does it too. It's rather annoying, but I suspect they all do it and only some of us notice.
     
  10. Jan 29, 2011 at 8:47 AM
    #10
    boxxed

    boxxed Well-Known Member

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    Leer Cap Kenwood DNX 9140 Boyo back up cam HD Raido Sirius Weather Tech Mats Memphis Audio, Valentine One radar,Tinted windows,Wet Okole's, Bed mat.
    i have an 09 or and i have always had a slight viberation that could be felt in the steering wheel and the gas pedal. If i turn my wheel slightly one way or the other i can find the sweet spot where there is no viberation. i took it to the dealer when i first got it and they wernt able to find anything.. so i just live with it
     
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