1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

All you brake afficionados...

Discussion in '3rd Gen Tundras (2014-2021)' started by TundraTss, Jun 17, 2020.

  1. Jun 17, 2020 at 4:17 PM
    #1
    TundraTss

    TundraTss [OP] The Mistress

    Joined:
    Jul 30, 2017
    Member:
    #8814
    Messages:
    611
    Gender:
    Male
    First Name:
    Brandon
    Colorado
    Vehicle:
    2019 TRD SR5
    Everything. Literally.
    Man, it has been a LONG tike since I posted in here.. glad y'all survived the Rona.

    So 2014 Tundra. New pads, calipers, rotors x4 about a month ago. No issues. Over the past few days I've been losing pressure when I'm stopped at red lights etc. Have to pump the pedal or just put in P because it'll eventually start rolling forward. Don't see any leaks anywhere, not sure of it's the master?? Don't think it's the booster because it depresses, so....

    Questions comments concerns?
    Thanks, guys. Appreciate you
     
  2. Jun 17, 2020 at 4:23 PM
    #2
    johnnyskullface

    johnnyskullface New Member

    Joined:
    Feb 8, 2020
    Member:
    #42347
    Messages:
    57
    Gender:
    Male
    First Name:
    John
    Beaverton, Oregon
    Vehicle:
    2018 White Tundra Limited Crewmax
    Sounds like a leak in the master cylinder. Sometimes they can show signs of a leak on the inside of the cab where the stop light switch is.
     
  3. Jun 17, 2020 at 4:35 PM
    #3
    TundraTss

    TundraTss [OP] The Mistress

    Joined:
    Jul 30, 2017
    Member:
    #8814
    Messages:
    611
    Gender:
    Male
    First Name:
    Brandon
    Colorado
    Vehicle:
    2019 TRD SR5
    Everything. Literally.
    Roger, I'll check it out.
    Thanks man...
     
  4. Jun 17, 2020 at 6:18 PM
    #4
    chugs

    chugs New Member

    Joined:
    Apr 9, 2018
    Member:
    #14330
    Messages:
    545
    Gender:
    Male
    First Name:
    Ciao
    Central Cali
    Vehicle:
    2007 Tundra Blue Streaker
    Bilstein 5100s
    Upgrade time
    upload_2020-6-18_4-19-7.jpg
     
    Black Wolf likes this.
  5. Jun 17, 2020 at 7:07 PM
    #5
    WhitmanTundra

    WhitmanTundra New Member

    Joined:
    Aug 26, 2018
    Member:
    #18629
    Messages:
    41
    First Name:
    Alexis
    Illinois
    Vehicle:
    2010 Toyota Tundra SR5 4.6L V8 double cab
    I concur with Johnnyskullface. That seems to be a likely solution. If there are for sure no leaks, and you aren't losing brake fluid, could be that your master cylinder seal is maybe faulty?
     
  6. Jun 17, 2020 at 7:28 PM
    #6
    TundraTss

    TundraTss [OP] The Mistress

    Joined:
    Jul 30, 2017
    Member:
    #8814
    Messages:
    611
    Gender:
    Male
    First Name:
    Brandon
    Colorado
    Vehicle:
    2019 TRD SR5
    Everything. Literally.
    yyyeah that's what I'm assuming. I pulled as much into the system from the reservoir as possible and it's still sinking at red lights so I'm gonna have to get underneath it and take a look.

    ...and then just go ahead and get that Wilwood setup. Because upgrade.
     
  7. Jun 18, 2020 at 11:35 AM
    #7
    cooper4x4

    cooper4x4 New Member

    Joined:
    Oct 24, 2017
    Member:
    #10494
    Messages:
    58
    Gender:
    Male
    Vehicle:
    2016 Tundra SR5
    There's a TechStream process to bleed the ABS system if you think you got air that far up. Did the Master Cylinder lose all fluid?

    I'd double-check that you don't have air in the system.
     
  8. Jun 18, 2020 at 12:42 PM
    #8
    TundraTss

    TundraTss [OP] The Mistress

    Joined:
    Jul 30, 2017
    Member:
    #8814
    Messages:
    611
    Gender:
    Male
    First Name:
    Brandon
    Colorado
    Vehicle:
    2019 TRD SR5
    Everything. Literally.
    The reservoir was a little low but I can't remember the last time I filled it and I just had my brakes done so I'm thinking/hoping that there was just air in the line. It seems like it's getting better but I've only driven a little since yesterday..
    We shall see......
     
  9. Jun 18, 2020 at 1:18 PM
    #9
    ezdog

    ezdog New Member

    Joined:
    Mar 1, 2020
    Member:
    #43363
    Messages:
    1,947
    Gender:
    Male
    Gateway To The West
    Vehicle:
    2001 RCLB V8,4WD 2015 RCLB 5.7,4WD
    Brakes are one of those systems that I like to think we all appreciate working properly?
     
    chugs likes this.
  10. Jun 18, 2020 at 2:08 PM
    #10
    cooper4x4

    cooper4x4 New Member

    Joined:
    Oct 24, 2017
    Member:
    #10494
    Messages:
    58
    Gender:
    Male
    Vehicle:
    2016 Tundra SR5
    Won't get better on it's own if there is air in the system. Consider purchasing a power bleeder such as the Motive with one of these https://smile.amazon.com/gp/product/B004IQ96RK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
     
    TundraTss [OP] and Black Wolf like this.
  11. Jun 18, 2020 at 3:51 PM
    #11
    johnnyskullface

    johnnyskullface New Member

    Joined:
    Feb 8, 2020
    Member:
    #42347
    Messages:
    57
    Gender:
    Male
    First Name:
    John
    Beaverton, Oregon
    Vehicle:
    2018 White Tundra Limited Crewmax
    Normally when brakes are done there is no need to crack any lines that would allow air in the system. Also, if you can pump it up and it gets firm and then over time keeps sinking its not likely air in the system. Air in the system will be spongy all the time due to the air being able to compress more than the fluid. It would be an easy thing to double check for air in the system, but don't bank on that being the issue.
     
    TundraTss [OP] likes this.
  12. Jun 18, 2020 at 3:55 PM
    #12
    cooper4x4

    cooper4x4 New Member

    Joined:
    Oct 24, 2017
    Member:
    #10494
    Messages:
    58
    Gender:
    Male
    Vehicle:
    2016 Tundra SR5
    He replaced calipers.
     
  13. Jun 18, 2020 at 7:59 PM
    #13
    SuperWhite20

    SuperWhite20 New Member

    Joined:
    Nov 22, 2019
    Member:
    #39021
    Messages:
    197
    Gender:
    Male
    First Name:
    Robert
    Georgetown TX
    Vehicle:
    2020 Tundra Crewmax SR5 4X4
    TRD Sway bar. Deck Rails, Maxliner rear floor mat, Driver side grab handle. Dee Zee bed mat
    Bleed them. Right rear, left rear, right front, left front. Then the master cylinder lines.
     
    Last edited: Jun 27, 2020
  14. Jun 19, 2020 at 4:32 AM
    #14
    T-Guy69

    T-Guy69 New Member

    Joined:
    Nov 21, 2019
    Member:
    #38939
    Messages:
    594
    Gender:
    Male
    Long Island
    Vehicle:
    Black 2020 Tundra SR5
    This! Bleed the system. Tap the calipers with a rubber hammer. Air bubbles get trapped. By driving, you may have knocked some loose.
     

Products Discussed in

To Top