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Brake question

Discussion in '2.5 Gen Tundras (2014-2021)' started by oldodge, Jul 15, 2019.

  1. Jul 15, 2019 at 5:14 PM
    #1
    oldodge

    oldodge [OP] New Member

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    My 2016 4wd, DC, 5.7, 32K miles has a soft brake pedal. I pulled all four wheels to check the brake pads and rotors. To my surprise the front pads look great, the rears are still good but appear to be much more worn than the fronts. That doesn't seem normal to me. Is it a Tundra trait? Also, if I activate ABS on a gravel road I get a better pedal feel for a while. Is that an indication of air in the abs? Will Toyota bleed the ABS under warranty? Lots of questions, I know, but this is really bugging me. I tried a conventional vacuum bleed and a two person pedal depression bleed with little change. The soft pedal and what seems like an odd front/rear wear bias has me concerned.
     
  2. Jul 19, 2019 at 4:00 PM
    #2
    oldodge

    oldodge [OP] New Member

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    Update as info for some other unlucky owner who runs into this issue:
    A mechanic friend of mine suggested I gravity bleed and then also bleed all connections at the ABS module and the master cylinder using the hold down brake pedal, loosen line fitting, let air/fluid escape tighten line fitting and release pedal. I did this and it made a noticeable improvement. I now have new fluid and a better feel at the pedal. I am satisfied.
     
    texasrho83 likes this.
  3. Jul 19, 2019 at 5:46 PM
    #3
    TTund16

    TTund16 New Member

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    in every car (front engine) that I had owned, the front pads wear out much faster maybe even %40 life left on the rear when the front is gone … maybe Tundra has a different rear pads or different material or they are not as thick as the front to begin with … idk
    or maybe you have some brake issues!
     
  4. Jul 21, 2019 at 5:41 AM
    #4
    oldodge

    oldodge [OP] New Member

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    TTund16, I am pretty sure I had a brake issue. I think it was air in the front brake line at the master cylinder. Since the bleeding the brakes finally feel normal. As for the rear vs front wear my experience is as yours. Time will tell if the wear pattern changes now. If I was compressing air at the front it may have been causing the rear to do the bulk of the braking.
     
    TTund16 likes this.
  5. Jul 21, 2019 at 5:47 AM
    #5
    TundraMcGov.

    TundraMcGov. Your friend. Your foe. Not yo Ho.

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    The best first stop is to bleed and at least eliminate "air in the system" as a cause or contributor. In the case of this thread it looks like it was the culprit.

    Question for the collective. Brake bias. Regarding 3rd generation (and in my case 4WD) what is the Mama Toyota engineered brake bias front to rear.
     

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