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Serpantine Belt Replacement ??

Discussion in 'General Tundra Discussion' started by Rex Kramer, Jan 14, 2021.

  1. Jan 14, 2021 at 7:40 AM
    #1
    Rex Kramer

    Rex Kramer [OP] bye-bye, Miss American Pie?

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    If you are going to replace the belt, pulley and tensioner on a high mileage 5.7L, is it also a good idea to replace the water pump while you are there even if it's not leaking? Is there any other preventative maintenance one should consider while doing this?

    In my case, I have no idea if it's the original H2O pump or not, but I do know that it's not leaking.
     
  2. Jan 14, 2021 at 8:07 AM
    #2
    frichco228

    frichco228 Valued Member

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    Well, I think Toyota sees water pump replacement as maintenance. I have a 06 4Runner and recall it being recommended to replace the water pump when those other items were replaced, as a maintenance item. So, while you are in there it may be cost and time effective to handle that at the same time.
     
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  3. Jan 14, 2021 at 8:34 AM
    #3
    AZBoatHauler

    AZBoatHauler Desert Dweller

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    If it were a GM, I’d replace it. Since it is a Toyota, if it looks good and works good I wouldn’t touch it.
     
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  4. Jan 14, 2021 at 8:38 AM
    #4
    Larly5000

    Larly5000 New Member

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    Belt takes 5 min to replace. I believe the pump is a lot more in depth(radiator, fan etc needs to be removed).

    I’d leave it until it needs it.
     
  5. Jan 14, 2021 at 9:33 AM
    #5
    Spvrtan

    Spvrtan Mod In Training | MIT

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    Rex Kramer [OP] and chugs like this.
  6. Jan 14, 2021 at 10:28 AM
    #6
    Rex Kramer

    Rex Kramer [OP] bye-bye, Miss American Pie?

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  7. Jan 14, 2021 at 1:54 PM
    #7
    preacher35

    preacher35 RIGHTEOUS MEMBER

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    Rex, what year is Tundra you are referring to (your profile shows two: 2002 & 2007) and how many miles is "high mileage"?
     
  8. Jan 14, 2021 at 1:59 PM
    #8
    Rex Kramer

    Rex Kramer [OP] bye-bye, Miss American Pie?

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    I thought the "5.7L" would give it away... 2007 with 296,000.
     
  9. Jan 14, 2021 at 2:40 PM
    #9
    preacher35

    preacher35 RIGHTEOUS MEMBER

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    Oh, good point, Rex. I am a victim of public schools, so there's that. Anyway, with 300k miles, and assuming that it is the original water pump, YES, I would indeed swap out the water pump while you are balls deep in there.
     
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  10. Jan 14, 2021 at 3:57 PM
    #10
    Trooper2

    Trooper2 Premium Lone Star Member

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    My 07 tensioner got tweaked when changing belt. Had to replace it to. It is a good idea.
    As mentioned if temps are good and no leaks, I would leave it alone.
     
  11. Jan 14, 2021 at 5:24 PM
    #11
    Rex Kramer

    Rex Kramer [OP] bye-bye, Miss American Pie?

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    Dayco 89502 Idler/Tensioner Pulley

    Dayco 89378 Belt Tensioner

    Dayco 5080950 Serpentine Belt

     

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