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hmm, changed all of my idler pullies and new belt, still have a chirp...

Discussion in '2nd Gen. Tacomas (2005-2015)' started by kessler89, Sep 26, 2011.

  1. Sep 26, 2011 at 9:00 AM
    #1
    kessler89

    kessler89 [OP] Well-Known Member

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    like the title says i've changed all 3 of my idler pullies and have a newer belt, i replaced 2 of my pullies yesterday and the upper one about a year ago along with the belt, i thought i had it fixed yesterday and we got a ton of rain last night, i went out and started it.... still there, what do you guys think? belt tensioner? anyone changed a tensioner on a 4.0L? can i just replace the pulley or do i have to change the whole thing?:mad:
     
  2. Sep 26, 2011 at 1:17 PM
    #2
    Wally

    Wally Well-Known Member

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    The tensioner pully is definitely replaceable. It's held on with a LH hand thread bolt so don't snap it off turning it the wrong way when you're undoing it.

    Don't ask how I know that ...
     
  3. Sep 26, 2011 at 1:29 PM
    #3
    Wally

    Wally Well-Known Member

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    And there's 3 other things spinning around from the belt ... the water pump, the power steering pump and the vane pump.

    I don't know if you know this trick but it works great for isolating the source of noise like that when it can't be accurately pinpointed. When you place a solid object on a part making noise and put your ear up to the other end, you'll hear a magnification of whatever sound/vibration is on the other end of that stick. You can use pieces of broom sticks, wood or long screwdrivers.

    For rotating parts, you can put the stick on the end of the bolt (not rotating) holding the pulley or or even on the metal casting close to where its bolted. Wrap your thumb over the end of the stick and hold it against your ear. Whichever location is the loudest is the most likely source of the problem and you'll change 1 part instead of 3.

    Just don't shove it into any rotating parts or moving belts ...
     
  4. Sep 27, 2011 at 12:17 AM
    #4
    kessler89

    kessler89 [OP] Well-Known Member

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    lol thanks guys, i knew about the pry bar trick, i think i'm gonna go ahead and try to replace the tensioner pulley and see what happens, i dont wanna have to deal with it when it's 12deg out:rolleyes:
     
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