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Timing belt

Discussion in '1st Gen. Tacomas (1995-2004)' started by Joserdog, May 4, 2017.

  1. May 4, 2017 at 9:55 PM
    #1
    Joserdog

    Joserdog [OP] Member

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    I just bought a 2003 tacoma limited 4x4 automatic couple months ago and the timing belt is consistently making a screeching noise when it idols is this a sign I should change the timing belt
     
  2. May 4, 2017 at 10:04 PM
    #2
    McMash

    McMash The only thing better than light bars? Sarcasm.

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    How many miles are on the truck? Has the timing belt ever been changed?

    Are you positive it is coming from the timing belt and not another belt or something else?
     
  3. May 5, 2017 at 5:57 AM
    #3
    NightProwler

    NightProwler Well-Known Member

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    Yeah better be sure what it is exactly. Timing belt screaching/squeeling would only be caused by one of the idler/tensioner rollers seizing up. Which is doubtful, but possible. Otherwise I'd suspect a drive belt.

    However it could also be the water pump bearing seizing and screeching. Mine did this. So is it more of a belt squeel, or bearing screach?
     
  4. May 5, 2017 at 12:59 PM
    #4
    Joserdog

    Joserdog [OP] Member

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    I think it is possibly another belt and it has 135 k miles on it but thanks for the tips.
     
  5. May 6, 2017 at 7:22 AM
    #5
    keakar

    keakar Well-Known Member

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    FIRST YOU NEVER SAID IF YOU HAVE V6 OR i4 SO I GOTTA ASK??????????????? I4 have timing chains not belts and the chains never need replacing.

    next the most common issue for squealing is the idler pulleys for a/c and power steering belt, they each have one and they only cost $20 or $8 if you take it apart and just replace the bearing in it
     
  6. May 6, 2017 at 10:32 AM
    #6
    Joserdog

    Joserdog [OP] Member

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    It's a V-6
     
    keakar likes this.
  7. May 6, 2017 at 3:06 PM
    #7
    keakar

    keakar Well-Known Member

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    ok, that helps

    yes you have a timing belt and it should be replaced every 100k miles are at least no more then at 150k miles, at this point with your mileage, its time to change your timing belt so you may as well do the full monty on it

    get the complete timing belt kit with everything and I suggest you put new idler pulleys or replace those bearings in them on the fan belts as well. they are notorious for going bad and making noise. I would say the fan belts idler bearings need changing every 30k miles or so.

    this is the timing belt kit if you want oem quality parts, he has a cheaper version if your ok using aftermarket parts but most of us agree, for this stuff you want to use oem stuff. http://www.ebay.com/itm/Toyota-3-4L...hash=item2c5bf69ef0:m:m4Q2V_w5K7vUbSPcBeUhWfA

    that kit doesn't include the fan belt idler pulleys so just check those and order them separately if needed
     
  8. May 6, 2017 at 3:27 PM
    #8
    b_r_o

    b_r_o refresco de carretera

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    That's a good kit except for the bandos, they stretch. Mitsubishi belts (Like that timing belt) are better..

    YOU may have a seizing water pump or idler but you should simply take the accessory belts off 1 by 1 first and see if the noise goes away..
     
  9. May 6, 2017 at 3:28 PM
    #9
    b_r_o

    b_r_o refresco de carretera

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    ..mitsuboshi belts.. damn auto correct..
     
  10. May 6, 2017 at 3:31 PM
    #10
    keakar

    keakar Well-Known Member

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    well those are just the fan belts so that's why, you can get his kit without the fan belts or ask him to upgrade those to the oem Mitsubishi ones if you like. 98% of people don't care about the brand of a fan belt because none of them last very long anyway, all the important and vital components are oem factory brands
     
  11. May 6, 2017 at 3:35 PM
    #11
    b_r_o

    b_r_o refresco de carretera

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    Yea but you're still dealing with screeching sounds if they stretch! You'll be tripping thinking your water pump is seized again LOL..
     
  12. May 6, 2017 at 4:27 PM
    #12
    keakar

    keakar Well-Known Member

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    ya, like I said, he has versions of the kits without fan belts and personally I just go to napa and get the "gates" belts when I need fan belts, never had any issues with those
     
  13. May 6, 2017 at 4:31 PM
    #13
    02 quadcab

    02 quadcab Well-Known Member

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    spray some belt conditioner on it shoudld stop the squeal.
     
  14. May 7, 2017 at 7:33 PM
    #14
    ZUK

    ZUK Gearinstalls.com

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    I presently have 201k miles on my timing belt (01 Taco 3.4L auto )and not a whisper from it ;)

    I would put money on the lower idler pulley on your fanbelts. I had it go out about 40,000 miles ago and it was only $35 on ebay. Being the lower one, it was super easy to replace from the underside.

    I think this is the one ....
    http://www.ebay.com/itm/Drive-Belt-...ash=item4d55f0e4d7:g:7rIAAOSw241YmKIE&vxp=mtr


    More research on my ebay purchase history and found it

    http://www.ebay.com/itm/Drive-Belt-...ash=item43eab88ce3:g:0t8AAOSwjDZYlv0t&vxp=mtr
     
    Last edited: May 7, 2017
  15. May 7, 2017 at 8:00 PM
    #15
    02 quadcab

    02 quadcab Well-Known Member

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    i had to replace the lower pull aswell $20 from autozone. super easy so no need for oem.
     

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