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Engine whine on cold start 01 tundra, timing belt tensioner?

Discussion in '1st Gen Tundras (2000-2006)' started by beastadam97, Dec 5, 2022.

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  1. Dec 6, 2022 at 4:58 PM
    #31
    empty_lord

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    empty_lord They see me rollin'

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    The outer cover has a Mark that lines up with the Mark on the crank pulley. No need to pull the lower cover
     
    Last edited: Dec 6, 2022
    empty_lord, Dec 6, 2022
    #31
    Tundra2 and shifty` like this.
  2. Dec 10, 2022 at 12:58 PM
    #32
    beastadam97

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    beastadam97 [OP] New Member

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    I got the tensioner out without taking out the fan shroud or radiator, i didn't have a 12 mm joint socket for my impact so i had to find a torque wrench that when spun had about a quarter inch of clearance from the radiator. I didn't realize a short 12 mm socket caused the torque wrench to interfere with the long metal tube of the tensioner, and after 3 hours of slipping with my 35 degrees of arc to work with, i swapped to a long 12 mm socket and it budged. Nothing moved at all, everything is marked and belt looks loose. My bolt is a little stripped, im nervous to put it back in. I ordered them and they will be in in 3 days.
     
    beastadam97, Dec 10, 2022
    #32
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  3. Dec 13, 2022 at 4:08 PM
    #33
    beastadam97

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    beastadam97 [OP] New Member

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    I'm glad I ordered new bolts, nice square edges super easy to work with. I snugged up the new tensioner and pulled the pin, everything looked perfect literally nothing moved, very nice. I put back the 1 idler pully at the top I had to remove to budge one of the timing covers, and then put on the drive belt and it fired up nicely, however, that damn whistle was still there. I had an oil change done by the dealership a month ago. Is it possible the filter is faulty. Is it possible they used the wrong oil? Would this cause a whistle in a 4.7 on cold start?
    My drive belt assembly and timing assembly is fine.

    @empty_lord
    @shifty`
     
    beastadam97, Dec 13, 2022
    #33
  4. Dec 13, 2022 at 4:25 PM
    #34
    shifty`

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    shifty` Just like witches at black masses

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    Whistle or squeal?

    What serp/drive belt is installed currently? Part number, brand please.

    Does it ever go away?

    Did you take the serp belt off and spin each pulley individually to see if any are making noise?
     
    shifty`, Dec 13, 2022
    #34
  5. Dec 13, 2022 at 4:56 PM
    #35
    beastadam97

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    beastadam97 [OP] New Member

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    More of a whistle sound. Toyota drive belt. I took off the drive belt and it still makes the noise.
     
    Last edited: Dec 13, 2022
    beastadam97, Dec 13, 2022
    #35
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  6. Dec 13, 2022 at 5:11 PM
    #36
    w666

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    w666 D. None of the above

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    Bummer...that eliminates the easy stuff. The tensioner pulley, the idler pulley, and the water pump are the next most likely culprits. Here's a pic of the things the timing belt "drives:
    timing-belt-2uz-fe-2-jpg_8ba3d7ed274f2d3731a3907de14583e06e87edd9.jpg
     
    w666, Dec 13, 2022
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  7. Dec 13, 2022 at 5:17 PM
    #37
    beastadam97

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    beastadam97 [OP] New Member

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    All of those were replaced 2 years ago by dealership, just called them and verified part numbers.
     
    beastadam97, Dec 13, 2022
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  8. Dec 13, 2022 at 5:31 PM
    #38
    shifty`

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    shifty` Just like witches at black masses

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    May be worthwhile to take the truck in for an hour of diagnostics then. If the dealership finds it's one of those pulleys, then they should replace it, at least at a discount? You may've gotten an unusual defective part.
     
    shifty`, Dec 13, 2022
    #38
  9. Dec 13, 2022 at 5:53 PM
    #39
    beastadam97

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    beastadam97 [OP] New Member

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    Oil seems full but if i got an oil change and this sound came about right after, that's a little fishy. I will perform and oil and filter change tomorrow and post results.
     
    beastadam97, Dec 13, 2022
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  10. Dec 13, 2022 at 6:14 PM
    #40
    FirstGenVol

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    FirstGenVol Check the name tag. You're in my world now.

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    Is everything clamped down correctly with the air box and intake? My dad got an oil change last year and after inspecting his air filter they didn't put the cover back on all the way. It was throwing codes and making noise.
     
    FirstGenVol, Dec 13, 2022
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  11. Dec 13, 2022 at 6:19 PM
    #41
    beastadam97

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    beastadam97 [OP] New Member

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    Would they only remove this for inspection purposes?
     
    beastadam97, Dec 13, 2022
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  12. Dec 13, 2022 at 7:23 PM
    #42
    beastadam97

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    beastadam97 [OP] New Member

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    Alright guys ill be bluntly honest, I pulled the drive belt off when she was a little warm 3 days ago and turned her on, and I heard some noise but I must've been a bit anal because after pulling the belt off right now when she was real cold the noise was gone. So i am sorry I mislead you guys. Here is where I am at, I got the drive belt tensioner, the alternator, and the idler pulley at the top reinstalled. What is left? I am targeting that fan...
     
    beastadam97, Dec 13, 2022
    #42
  13. Dec 14, 2022 at 5:42 AM
    #43
    shifty`

    #43
    shifty` Just like witches at black masses

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    So wait ... you pulled the serp/drive belt, and the noise isn't there?

    You're saying the serp/drive belt was replaced by the dealership a couple of years ago earlier, did I understand that correctly?
     
    shifty`, Dec 14, 2022
    #43
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