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How to: Change the alternator on a 2nd gen Tacoma.

Discussion in '2nd Gen. Tacomas (2005-2015)' started by TacomaPrime, Aug 31, 2011.

  1. Aug 31, 2011 at 7:02 PM
    #1
    TacomaPrime

    TacomaPrime [OP] Cybertronian Tacoma

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    Greg
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    Had to do this recently and found an easier way then what the FSM suggests.

    1. Disconnect the negative battery terminal!

    2. Remove the front skid plate. It is held in place by 4 12mm bolts.

    3. Use a breaker bar to rotate the tensioner COUNTERclockwise. This is the only socket size i cannot remember. I believe it may be 14 mm, but don't quote me on that. Once the tension is released, remove the belt.

    4. Remove the gray cap, and undo the 9mm nut towards the rear of the alternator. then remove the 2 10mm bolts near where the grey cover was. Toward the front of the alternator, there is also another 10 mm bolt holding on another clip. Undo that. Also, at this point, unplug the wiring harness plug that plugs into the alternator. Pic below.
    [​IMG]

    5. Remove the two bolts that hold the alternator to the engine block. The bottom one is not visible in the below pic.(pic below).
    [​IMG]
    The top one is 14mm, or 9/16's will work in a pinch. The top one is easy to get to. At this point, there is 1 bolt holding the alternator to the engine block. It may be helpful to have a friend nearby to hold onto the alternator for you. The bottom 14mm bolt that holds the alternator to the engine block is much easier to get to from underneath the truck, that is why I removed the front skid plate. Once you remove these two 14mm bolts the alternator will be free.

    6. Pull the alternator out through the top of the engine bay. You will have to move a radiator hose and maybe an AC line out of the way a little bit to get it out, but it WILL come out this way!.

    7. Put everything back in reverse order.
    8. Pat yourself on the back, cause you just saved your self a bunch of money on labor!
     
  2. Aug 31, 2011 at 7:04 PM
    #2
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    We just did this a few weeks ago in the Rausch Creek parking lot. We found it was easier to pull the alternator out through the fender well.

    Good write up!!
     
  3. Aug 31, 2011 at 7:09 PM
    #3
    TacomaPrime

    TacomaPrime [OP] Cybertronian Tacoma

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    huh. Never thought about that. that would work too. Pulling it up through the top of the engine was literally easy as pie. The fsm talks about removing the fan shroud and a bunch of other stuff that is completely unnecessary.
     
  4. Aug 31, 2011 at 7:12 PM
    #4
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    Yes, I remember that. The shroud is only held in by two bolts but still seems unnecessary to remove. I seem to remember we couldn't get it through the top easily. I don't recall why though.
     
  5. Aug 31, 2011 at 7:28 PM
    #5
    docbrown

    docbrown Well-Known Member

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    Will a mod add this to the 2nd gen how to's?
     
  6. Aug 31, 2011 at 7:39 PM
    #6
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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  7. Aug 31, 2011 at 7:41 PM
    #7
    UMBCrew

    UMBCrew Well-Known Member

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    Don't forget that you only want to remove the belt from the alternator and try to keep the rest of it In place so that when you go to put it back on you don't have to try and re-route the entire belt or worse try to remember how it is routed
     
  8. Sep 1, 2011 at 7:37 AM
    #8
    docbrown

    docbrown Well-Known Member

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  9. Sep 1, 2011 at 11:33 AM
    #9
    Crom

    Crom Time is precious; use it wisely

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    Many, see build thread.
    Nice writeup! :thumbsup: If it doesn't die first, I'm changing mine out at 100K miles or 5 years. That and the starter too.

    :rofl:
     
  10. Sep 1, 2011 at 11:46 AM
    #10
    UndefinedTaco

    UndefinedTaco I'll eat all your food.

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    It's an 89 Toyota Pickup. I got some stuff done to it.. FJ axles going under it soon.
    You can rebuild a starter for $21. Why buy a new one.


    :eek:
     
  11. Sep 1, 2011 at 12:58 PM
    #11
    Crom

    Crom Time is precious; use it wisely

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    Many, see build thread.
    Good to know. Perhaps I'll rebuild it. :)
     
  12. Oct 10, 2011 at 5:32 PM
    #12
    MAXTacoma

    MAXTacoma Well-Known Member

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    What brand alternator has people used? I went online and a Toyota alt. is about 350 vs. 170 from Autozone. Any thoughts?
     
  13. Oct 10, 2011 at 5:49 PM
    #13
    pinktaco808

    pinktaco808 Hot Steppa

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    can this be done to the 4 cylinder too? and any special tools or torquing needed?
     
  14. Oct 11, 2011 at 5:16 PM
    #14
    pinktaco808

    pinktaco808 Hot Steppa

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  15. Oct 11, 2011 at 5:19 PM
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    pinktaco808

    pinktaco808 Hot Steppa

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    anymore pics? of the tensioner and grey cap?
     
  16. Oct 12, 2011 at 10:25 PM
    #16
    pinktaco808

    pinktaco808 Hot Steppa

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    bump any help?
     
  17. Oct 14, 2011 at 3:42 PM
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    pinktaco808

    pinktaco808 Hot Steppa

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    what is that tension thing you talking about?
     
  18. Oct 14, 2011 at 3:50 PM
    #18
    jandrews

    jandrews Carolina Alliance Southwest Region Ambassador

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    I'd call that premature. Frankly, I wouldn't change either until they actually die. Original Starter and Alt in my Corolla are fine at 180+k miles. And yes, I've checked the currents recently. Usually do it about twice a year...everything in spec.
     
  19. Oct 27, 2011 at 10:16 AM
    #19
    WildWolfy

    WildWolfy Field Supervisor

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    Well the recc pulling the fan shroud so you don't chance damaging it while pulling the alt.
     
  20. Jul 17, 2012 at 11:12 PM
    #20
    BeeRadd

    BeeRadd ANTI-DARK Vendor

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    This thread was a big help, just replaced the alternator because a mudding trip this weekend ruined the old one :/
    was still a lot of fun messing around the engine though with this. Thx again!
     
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