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Whining in all gears and park and neutral for 2006 tacoma V6 with 5 speed auto trans

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Elvis TRD, Dec 12, 2019.

  1. Dec 12, 2019 at 11:22 AM
    #1
    Elvis TRD

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    Elvis TRD [OP] Member

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    2006 Silver Tacoma prerunner, 4.0 V-6 5 speed auto trans
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    I've got a 2006 Prerunner with the 4 liter v6 and 5 speed auto trans, been a good truck, today it started making a whine in any gear and neutral and park that rises and falls with the RPM, any suggestions on where to look first, it has 104K miles on it, any info is appreciated
    thanks
    Elvis TRD
     
    Elvis TRD, Dec 12, 2019
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  2. Dec 12, 2019 at 11:25 AM
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    JC15Taco

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    JC15Taco Well-Known Member

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    Whine where? Under hood? Near transmission?... could be your power steering pump...alternator... bunch of stuff.
    A/C compressor... idler pulleys...and on and on
     
    JC15Taco, Dec 12, 2019
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  3. Dec 12, 2019 at 11:31 AM
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    JC15Taco

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    JC15Taco Well-Known Member

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    Probably not transmission, since it whines in park/ neutral.
     
    JC15Taco, Dec 12, 2019
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  4. Dec 12, 2019 at 11:31 AM
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    rnish

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    rnish Well-Known Member

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    Check fluid levels. Power steering, transmission etc.
     
    rnish, Dec 12, 2019
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    Elvis TRD[OP] likes this.
  5. Dec 12, 2019 at 11:35 AM
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    knayrb

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    knayrb Well-Known Member

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    Harbor freight stethoscope or tube and listen at the alternator, PS pump, A/C unit, idler pully, etc. and see if that's where the sound is coming from. Chances are it's a bearing on one of those and not a serious engine problem.

    Edit: "wouldn't happen if you had a manual transmission"! :)
     
    knayrb, Dec 12, 2019
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    Buildit likes this.
  6. Dec 12, 2019 at 11:36 AM
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    Bishop2Queens6

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    Bishop2Queens6 Well-Known Member

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    Common issue is idler pully bearing.
     
    Bishop2Queens6, Dec 12, 2019
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  7. Dec 12, 2019 at 12:39 PM
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    Elvis TRD

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    Elvis TRD [OP] Member

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    Thanks, I will check when it stops raining, came on instantly, under the hood rises and falls with RPM loudest at 2K rpm
     
    Elvis TRD, Dec 12, 2019
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  8. Dec 12, 2019 at 12:40 PM
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    Elvis TRD

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    Elvis TRD [OP] Member

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    Thanks
     
    Elvis TRD, Dec 12, 2019
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  9. Dec 12, 2019 at 12:41 PM
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    Elvis TRD

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    Elvis TRD [OP] Member

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    I thought maybe torque converter or transmission pump, but came on instantly this morning, all the fluids are fine, cant check the trans fluid but it does not leak
     
    Elvis TRD, Dec 12, 2019
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  10. Dec 12, 2019 at 2:30 PM
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    nd4spdbh

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    nd4spdbh Well-Known Member

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    take the 10 min to pull the serpentine belt and spin each component by hand. Ill be you find that alternator / or idler(s) / or tensioner is bad. With the belt pulled fire the truck up and if the whine disappears, you know its one of the front accessories that spins due to the belt.
     
    nd4spdbh, Dec 12, 2019
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  11. Dec 12, 2019 at 3:41 PM
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    Accipiter13

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    Accipiter13 Well-Known Member

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    You don’t even need a stethoscope, just stick a piece of tubing to your ear and point it towards the various pulleys (carefully!). You’ll find out real quick which is the culprit.
     
    Accipiter13, Dec 12, 2019
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  12. Dec 12, 2019 at 3:41 PM
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    Spoonman

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    Spoonman Granite Guru

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    Idler pulley
     
    Spoonman, Dec 12, 2019
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  13. Dec 13, 2019 at 9:59 AM
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    Elvis TRD

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    Elvis TRD [OP] Member

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    This morning I went out and sprayed WD-40 and CLP on all the stuff that the serpentine belt turns, it got about 70% quieter for 10 minutes then gradually got louder. So I just need to identify which of those rotating suckers is the culprit and get to work. Likely candidates for 104K truck? BTW, many thanks for the inputs from this forum!
    Cheers,
    Elvis TRD
     
    Elvis TRD, Dec 13, 2019
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  14. Dec 13, 2019 at 10:00 AM
    #14
    Spoonman

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    Spoonman Granite Guru

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    4 drops of water will ruin those pulleys on a new truck. Getting 104 from them is amazing
     
    Spoonman, Dec 13, 2019
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  15. Dec 13, 2019 at 10:09 AM
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    will.i.was

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    will.i.was Well-Known Member

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    I would replace all pulleys. If one is going out, the others may not be far behind. I have driven through some water up to my headlight and it took 170k to kill my original pulleys. Tensioner did however give up long before that around 100k.
     
    will.i.was, Dec 13, 2019
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  16. Dec 13, 2019 at 10:29 AM
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    Accipiter13

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    Accipiter13 Well-Known Member

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    I’ll bet it’s an idler pulley.

    I’d just buy the 2 uppers and 1 lower - replace them all so you don’t have to worry about doing it multiple times.

    For the tensioner I’d buy this
    Pulley Idler Febest 0187-GRJ200 OEM 16620-31012
    https://www.amazon.com/dp/B00HAP3W1...olid=1VNNK0J7AYR5G&psc=1&ref_=lv_ov_lig_dp_it

    And swap in this bearing
    $59 5203-2NSL Nachi Double Row Angular Contact Bearing 17x40x17.5 Sealed
    https://www.amazon.com/dp/B0045DWDJ...olid=1VNNK0J7AYR5G&psc=1&ref_=lv_ov_lig_dp_it

    That will fit on the stock tensioner (which doesn’t normally go bad) with the correct clearance.
     
    Accipiter13, Dec 13, 2019
    #16

Products Discussed in

5203-2NSL Nachi Double Row Angular Contact Bearing 17x40x17.5 Sealed
$58.81
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