1. Welcome to Tacoma World!

    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 Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Problem with the Brakes....

Discussion in '1st Gen. Tacomas' started by Kuneff, Aug 30, 2010.

  1. Aug 30, 2010 at 6:13 AM
    #1
    Kuneff

    Kuneff [OP] Carpe Diem

    Joined:
    Nov 19, 2009
    Member:
    #26173
    Messages:
    764
    Gender:
    Male
    West Virginia
    Vehicle:
    Tacoma Woods Beater
    Tree Dents
    I bleed out my brakes yesterday. Pedal feel was great. Then I started the truck. The pedal went straight to the floor... Tried bleeding them with the truck running just to see what it would do... No different...

    I pulled out the vac check valve.... It is working properly. When pumping the brakes with the engine running, the truck starts to die out. When we clamped off the vac line to the booster the brakes felt a world better. Its ike it has a vacuum leak... I am guessing the brake booster is shot... any ideas???? Anything else i can try to trouble shoot before throwing more parts at it????


    Thanks in advance...
     
  2. Aug 30, 2010 at 6:16 AM
    #2
    98tacoma27

    98tacoma27 :POOPCORN: Thor

    Joined:
    Dec 18, 2008
    Member:
    #11714
    Messages:
    48,249
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
  3. Aug 30, 2010 at 6:18 AM
    #3
    Kuneff

    Kuneff [OP] Carpe Diem

    Joined:
    Nov 19, 2009
    Member:
    #26173
    Messages:
    764
    Gender:
    Male
    West Virginia
    Vehicle:
    Tacoma Woods Beater
    Tree Dents
    You are the man.... Thank YOU!!!!
     
  4. Aug 30, 2010 at 2:10 PM
    #4
    Kuneff

    Kuneff [OP] Carpe Diem

    Joined:
    Nov 19, 2009
    Member:
    #26173
    Messages:
    764
    Gender:
    Male
    West Virginia
    Vehicle:
    Tacoma Woods Beater
    Tree Dents
    OK, tested it all... pedal builds pressure fine when engine is off. Start the engine and the pedal goes to the floor. Try to pump it up and it still goes to the floor. I have the engine running with the pedal pressed, shut the engine off, wait 30 seconds, and it pushes to the floor...

    Is it a safe bet that the booster is not holding an air tight seal??? A new booster is $250 at Napa, and I hate to take on the expense let alone the hastel of changing it unless I can pin point it to that being the problem first...
     
  5. Aug 30, 2010 at 2:13 PM
    #5
    HondaGM

    HondaGM Roll Tide

    Joined:
    Oct 28, 2009
    Member:
    #25056
    Messages:
    5,804
    Gender:
    Male
    First Name:
    James
    South-Pole
    Vehicle:
    09 DC 4x4 Blown Honda VTEC V8
    trd exhaust,step bars,vent visors,bed lights,tailgate mod
    why were you bleeding the brakes,did you replace something?if the booster was bad,from leaking vacuum internally,it would basically feel like it does when the engine is off.i've seen people bleed there brakes and push the pedal all the way to the floor to bleed.this will sometimes mess up the seal in the master cylinder, from contaminates that have built up in front of the seals.
     
  6. Aug 30, 2010 at 3:21 PM
    #6
    Kuneff

    Kuneff [OP] Carpe Diem

    Joined:
    Nov 19, 2009
    Member:
    #26173
    Messages:
    764
    Gender:
    Male
    West Virginia
    Vehicle:
    Tacoma Woods Beater
    Tree Dents
    I had to change the Driver Front Caliper.

    So if the booster was leaking it should be real stiff even with the engine running?

    When I changed it all, I opened all bleeders and flushed new fluid thru the entire truck. So I am hoping there is no dirt left in the system.

    What could it be causing the pedal to have NO pressure once the engine starts???
     
  7. Aug 30, 2010 at 6:11 PM
    #7
    Kuneff

    Kuneff [OP] Carpe Diem

    Joined:
    Nov 19, 2009
    Member:
    #26173
    Messages:
    764
    Gender:
    Male
    West Virginia
    Vehicle:
    Tacoma Woods Beater
    Tree Dents
    Also the engine almost dies out when you pump the brakes...
     
  8. Aug 30, 2010 at 6:32 PM
    #8
    HondaGM

    HondaGM Roll Tide

    Joined:
    Oct 28, 2009
    Member:
    #25056
    Messages:
    5,804
    Gender:
    Male
    First Name:
    James
    South-Pole
    Vehicle:
    09 DC 4x4 Blown Honda VTEC V8
    trd exhaust,step bars,vent visors,bed lights,tailgate mod
    was the brakes acting like this before you replaced the caliper?
     
  9. Aug 30, 2010 at 6:56 PM
    #9
    Kuneff

    Kuneff [OP] Carpe Diem

    Joined:
    Nov 19, 2009
    Member:
    #26173
    Messages:
    764
    Gender:
    Male
    West Virginia
    Vehicle:
    Tacoma Woods Beater
    Tree Dents
    The truck was a basket case... sitting for 4 years. Take a quick peak at my build thread and you will see. the first pic is the way it sat when I purchased it.

    The caliper was froze solid. I have yet to drive the truck. Just in and out of my garage since I got it running.
     
  10. Aug 30, 2010 at 7:07 PM
    #10
    HondaGM

    HondaGM Roll Tide

    Joined:
    Oct 28, 2009
    Member:
    #25056
    Messages:
    5,804
    Gender:
    Male
    First Name:
    James
    South-Pole
    Vehicle:
    09 DC 4x4 Blown Honda VTEC V8
    trd exhaust,step bars,vent visors,bed lights,tailgate mod
    if all of the air is out of the lines,and its still going to the floor,i would take a look at the master cylinder.
     
To Top