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Transmission whine/drone

Discussion in '2nd Gen. Tacomas (2005-2015)' started by lmikk12, Feb 20, 2012.

  1. Feb 20, 2012 at 4:14 PM
    #1
    lmikk12

    lmikk12 [OP] Active Member

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    I recently bought a new tacoma 2.7L 5 spd and when i am in 4th gear and around 2k rpm i get a small whine but it doesn't do it in any other gear, anybody else experience this?
    thanks
     
  2. Feb 20, 2012 at 4:15 PM
    #2
    08pretaco

    08pretaco Almost there

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    whine or spun bearing sound?
     
  3. Feb 20, 2012 at 4:22 PM
    #3
    lmikk12

    lmikk12 [OP] Active Member

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    Just a small whine and it goes away at about 2200 rpm, maybe im lugging it too much?
     
  4. Feb 20, 2012 at 4:23 PM
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    08pretaco

    08pretaco Almost there

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    cant think of anything else it might be. change the shift points and see what happens.

    I have a spun bearing sounds in 5th at a certain speed range
     
  5. Feb 20, 2012 at 4:27 PM
    #5
    lmikk12

    lmikk12 [OP] Active Member

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    Ya if i keep the revs a little higher it doesnt do it and i only have 1000 miles on it so i would hope it isnt a spun bearing. thanks for the insight.
     
  6. Feb 20, 2012 at 4:59 PM
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    maineah

    maineah Well-Known Member

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    4th gear is direct (1:1) meaning it is locked straight through so the trans will not make noise in 4th my guess is a slight rear end whine. You are more likely to hear it in 4th because nothing else in the trans is doing any thing. I don't think I would worry about it turn the radio up a bit.
     
  7. Feb 20, 2012 at 5:04 PM
    #7
    lmikk12

    lmikk12 [OP] Active Member

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    haha thanks, i know that all types of gearboxes make a little noise(4x4 ranger is awful) but if it is the rear end is that normal or should i change fluid or anything?
     
  8. Feb 21, 2012 at 4:32 AM
    #8
    maineah

    maineah Well-Known Member

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    As new as it is it might be a good ideal to let the dealer have a look if nothing else it establishes a time line in case you do end up with a problem in the future it's probably nothing but a good part of what you paid for the truck covers warranty so you might as well use it.
     
  9. Feb 21, 2012 at 3:32 PM
    #9
    iroh

    iroh Well-Known Member

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    I've never heard a manual tranny not whine in a gear until I got my taco.

    The 2.7L I test drove before my current truck whined a little. Both my previous Hondas whined pretty good in 4th.

    Easier to hear when you're sitting next to the tranny instead of behind it like in a car, although it seems to be quieter in the Toyotas because they use 75w90 instead of Honda MTF (I don't know if it's thick enough to qualify for 70w80, the new formulation is ATF thin). The heavy gear oil really sucks up some vibration.

    I'd ask the dealer to test drive a couple 5 spd 2.7s myself to verify if it's something common to all the R155 trannies.

    It's possible the gears are whining when the countershaft is unloaded in 4th gear and any tolerances normally taken up by engine torque are loose again.
     
  10. Feb 21, 2012 at 4:14 PM
    #10
    lmikk12

    lmikk12 [OP] Active Member

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    thats a good idea, and if they dont whiine then i am already at the dealership haha thanks for the input
     
  11. Feb 21, 2012 at 5:31 PM
    #11
    jpaw30

    jpaw30 Well-Known Member

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    at 50mph the differential will whine, there's a tsb about it
     
  12. Feb 21, 2012 at 9:49 PM
    #12
    lmikk12

    lmikk12 [OP] Active Member

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    awesome thanks
     
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