The search is over

Discussion in '4Runners' started by jross20, Jun 8, 2019.

  1. Jul 9, 2019 at 2:34 PM
    #21
    SpikerEng

    SpikerEng Well-Known Member

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    Very nice find!
     
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  2. Aug 3, 2019 at 6:41 PM
    #22
    jross20

    jross20 [OP] Well-Known Member

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    For anyone still following, the rack and valve cover seals actually are not leaking...haha! Woohoo!

    But the rear brakes still lock up...no solution yet.
     
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  3. Aug 4, 2019 at 6:42 AM
    #23
    jross20

    jross20 [OP] Well-Known Member

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    -Bell crank and e-brake adjusted/checked. No issues found. No rust, no nothing.
    -Rear brakes completely disassembled and cleaned twice.
    -No rear axle leak
    -No visible damage or issues with components.
    -3 mechanics now all have felt the issue but admit that it makes no sense and have no idea what is causing it.

    Yesterday my Korean mechanic I use the most was pretty sure he could fix it when mentioned that cranking the e-brake hard several times would fix it for a while... But once again he can't find anything amiss or astray.

    Out of ideas at this point lol. She just likes to lock up I guess.
     
  4. Aug 4, 2019 at 11:40 AM
    #24
    mechanicjon

    mechanicjon They call me "Jonny Stubs"

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    Supercharged, AEM FIC/6, Meth Inj, ION Alloy's, Radio & Phone steering Wheel controls,Fabtech AAL, Billie's wrapped with 880's , Tundra big brake conversion, bully bars and Pioneer DDin Stereo/dvd with exterrnal usb ports. 290K and going strong.

    Do you still have thay pdf? I'll have to go find it if you don't.
     
  5. Aug 4, 2019 at 8:30 PM
    #25
    jross20

    jross20 [OP] Well-Known Member

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    Shoot yeah that could be the ticket!
     
  6. Aug 5, 2019 at 8:54 AM
    #26
    SpikerEng

    SpikerEng Well-Known Member

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    Let's back up for a sec... Don't you have ABS on your truck? Shouldn't that kick in to prevent lockup?
     
  7. Aug 5, 2019 at 12:48 PM
    #27
    MagtechPA

    MagtechPA Thor

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    Very nice 4 Runner, love that color.
     
  8. Aug 6, 2019 at 11:59 AM
    #28
    jross20

    jross20 [OP] Well-Known Member

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    Yes, when they lock the abs goes crazy for a minute. However, if she is just about to stop...the wheels lock and she stops hard haha.

    But, they also stay locked sometimes so I have to hit the gas gentle several times to cox them into letting go.
     
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  9. Aug 6, 2019 at 5:11 PM
    #29
    SpikerEng

    SpikerEng Well-Known Member

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    OK, that is some pretty strange behavior for ABS.
     
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  10. Aug 7, 2019 at 11:12 AM
    #30
    jross20

    jross20 [OP] Well-Known Member

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    Well I don't think the abs is the issue. I think the abs is sensing the lockup of the rear drums and is responding as it would thinking you are in a emergency stop or something.
     
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  11. Aug 10, 2019 at 12:15 AM
    #31
    hemitruk

    hemitruk Old man , young boi truk

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    Resurfaced drums ?
     
  12. Aug 10, 2019 at 9:49 AM
    #32
    jross20

    jross20 [OP] Well-Known Member

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    Not sure I'll have to check. But it was said the drums looked fine. Maybe that isn't enough?
     
  13. Aug 10, 2019 at 11:05 AM
    #33
    hemitruk

    hemitruk Old man , young boi truk

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    Looks sometimes not good enough . Seen they only cleaned shoes twice why not just replace both shoes and rotor . Thats the only thing that would cause it to lock up besides weak return springs . Would change that too .
    Also might want to ckeck axle for out of round or bearing play up and down .
    We got a lot of 4runners running around in Hawaii .And tacomas lol. Good luck .Nice ride
     
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  14. Aug 12, 2019 at 5:52 AM
    #34
    jross20

    jross20 [OP] Well-Known Member

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    That's my plan I guess. Just swap all the little parts and shoes. Although I'm really worried that I'm going to do all that and it will still happen, haha!

    I'm not sure, I wasn't aware there was such a thing. How would I find out which one I have? And if I do, I'm assuming you're asking because it may be the culprit?
     
  15. Aug 12, 2019 at 12:07 PM
    #35
    hemitruk

    hemitruk Old man , young boi truk

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    Try spraying shoes with brakekleen let dry and sand shoes and drum with 60 grit sand paper .See it helps

    If not I would at least resurface drums if going to replace shoe and hardware kit. Eliminate everything
     
  16. Aug 13, 2019 at 3:21 PM
    #36
    jross20

    jross20 [OP] Well-Known Member

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    Okay, next to the master cylinder right? I'll check.

    Is there like a kit with all OEM parts? Like that timing belt OEM kit from eBay?
     
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  17. Aug 13, 2019 at 10:03 PM
    #37
    hemitruk

    hemitruk Old man , young boi truk

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    I think they do have brake hardware kits not sure ebay does
     
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  18. Aug 13, 2019 at 10:21 PM
    #38
    jross20

    jross20 [OP] Well-Known Member

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    Well it doesn't have to be eBay, I just said that because that's where I ordered my timing belt kit from. Haha

    So I didn't get a chance to check anything yet, got home late and then we had to drop the taco off. But through out the day I realized I can "fix" the rear brakes by working the hand brake firmly and then softly but quickly. It isn't always perfect but it definitely has an effect. So I'm beginning to think that the problem is that bell thing
     
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