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brakes feel like I'm pumping them

Discussion in 'Performance and Tuning' started by rondog, Dec 20, 2011.

  1. Dec 20, 2011 at 9:19 AM
    #1
    rondog

    rondog [OP] your TW web developer!

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    When I am slowing down to say a traffic light and I am lightly stepping on the brake pedal, my truck feels as if I am pumping the brakes. I only notice this going like >10mph. Its starting to get really annoying. Does anyone know what this can be? It feels like I am stepping hard on the brake, then letting off, then stepping hard, then letting off etc...

    Air in the brake lines?

    Bad rotors? pads?
     
  2. Dec 20, 2011 at 9:22 AM
    #2
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Does it feel like when the ABS system kicks in?
     
  3. Dec 20, 2011 at 9:26 AM
    #3
    CRU

    CRU Well-Known Member

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    Warped rotor.
     
  4. Dec 20, 2011 at 9:32 AM
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    fireturk41

    fireturk41 I like to break shit!

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    when you sit at a stop light does the pedal just start dropping to the floor?
     
  5. Dec 20, 2011 at 9:39 AM
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    rondog

    rondog [OP] your TW web developer!

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    No, abs feels a lot rougher than what I am experiencing

    Nope


    The rotots i got are only 6 months old..damnit if it is warped
     
  6. Dec 20, 2011 at 9:40 AM
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    fireturk41

    fireturk41 I like to break shit!

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    what kinda rotors did you get?
     
  7. Dec 20, 2011 at 9:51 AM
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    rondog

    rondog [OP] your TW web developer!

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    ehhh uhhhh I got them at orieley's..use to be kragen, I cant remember the brand
     
  8. Dec 20, 2011 at 9:55 AM
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    ST3VE

    ST3VE Well-Known Member

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    This!!
     
  9. Dec 20, 2011 at 10:15 AM
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    skytower

    skytower Well-Known Member

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    If your caliper seizes of sticks, it will keep the brakes applied or dragging. This will overheat and warp the rotors in short order.
    Either something was missed when the rotors were replaced, or something failed. I would focus on the work recently done.
    If you drive like a demon, or got cheap rotors, warping will happen quickly.
     
  10. Dec 20, 2011 at 10:20 AM
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    beerye

    beerye Steel Curtain!!

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    Rotors need to be turned. Do you remember when you last did them?
     
  11. Dec 20, 2011 at 10:21 AM
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    beerye

    beerye Steel Curtain!!

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    Rotors need to be turned. Do you remember when you last did them?
     
  12. Dec 20, 2011 at 10:28 AM
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    rondog

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    Ok, I'll check the rotors..I dont think they need to be turned, I got them like 6 months ago

    Can anyone recommend a good rotor for our truck? even a more expensive one meant for larger tires. No ceramic or slotted rotors. I think that's overkill for me
     
  13. Dec 20, 2011 at 10:44 AM
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    ST3VE

    ST3VE Well-Known Member

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    I bought Brembo and they are great.
     
  14. Dec 20, 2011 at 10:48 AM
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    beerye

    beerye Steel Curtain!!

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    I went to Orielly and they now have rotors that have a lifetime warranty. I went with them and so far so good. I did also go ceramic pads too
     
  15. Dec 20, 2011 at 10:53 AM
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    4Wheelin4Banger

    4Wheelin4Banger Longtime Toyman

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    That's your problem.^
     
  16. Dec 20, 2011 at 11:11 AM
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    rondog

    rondog [OP] your TW web developer!

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    You know what...I am kinda leaning towards air in the brake lines. I changed my rear lines after I put my rear long travel on since I needed extended ones. I noticed it started happening after that and it seems to be progressively getting worse. Is that what air in the lines would feel like? I've kept an eye on the brake fluid and it hasn't gone down any since then
     
  17. Dec 20, 2011 at 12:22 PM
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    4Wheelin4Banger

    4Wheelin4Banger Longtime Toyman

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    Air in the lines would make the brakes mushy IIRC.
     
  18. Dec 20, 2011 at 1:34 PM
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    rondog

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    ok then that must not be it...warped rotors from what you guys have been saying sounds like the issue here
     
  19. Dec 20, 2011 at 1:38 PM
    #19
    achirdo

    achirdo I Weld!

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    If their was air in the lines you would be able to push the brake pedal to the floor.

    Its a warped rotor.

    Maybe your riding your brakes or like others said a caliper is siezed in place and caused over heating
     
  20. Jan 1, 2012 at 5:15 AM
    #20
    johnny 5

    johnny 5 Well-Known Member

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    I got my rotors at napa and they have been on longer then the factory ones were and still no warpage or brake shimmy will for sure use them in the future again. I also used monroe disk pads in front and they have really held up very well a brand my local farm and fleet handles. I ALSO HAUL ALOT OF HEAVY LOADS AND CARRY A PLOW ON IT.
     
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