thumpy pedal feedback when braking at high speed while turning left
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Suspension, Brakes and Tires Discussion, thumpy pedal feedback when braking at high speed while turning left in Item Specific Cadillac Discussion; At speeds below 50 or so, brakes feel fine, very smooth. Above 50 if I am turning a curve going ...
  1. #1
    mtflight's Avatar
    mtflight is offline Cadillac Owners Connoisseur
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    thumpy pedal feedback when braking at high speed while turning left

    At speeds below 50 or so, brakes feel fine, very smooth.

    Above 50 if I am turning a curve going left and use the brakes I will feel pedal feedback denoting possible warpage or deposits.... try the same thing going right instead of left--smooth.

    Another oddity:

    when I put the car in reverse, and start to roll, and then apply brakes initially, I hear a hum as if I was missing break pads, from my rear passenger side. If I apply the brakes again it's gone (it only happens the first time I brake after going backwards--subsequently it's fine, unless I go forward some then reverse again).


    Is there a DIC brake wear message on the Deville or only on the STS? (i.e.,"change brake pads")

    So I was thinking of replacing rotors/pads.

    In an effort to masculinize the car I want to get drilled rotors, painted calipers (White Diamond paint---red or silver calipers? ), and tinted windows. Any thoughts?

    Thanks!


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  3. #2
    C&C's Avatar
    C&C
    C&C is online now Cadillac Owners Connoisseur
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    Re: thumpy pedal feedback when braking at high speed while turning left

    I'm just guessing here but don't rule out a bad wheel bearing.

    Wait a minute this just stuck me too. That's a front wheel drive right, well it could also be a CV joint.

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    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: thumpy pedal feedback when braking at high speed while turning left

    For longevity, low dust, and fewer rotor wear problems you might consider EBC slotted rotors (not drilled) and Redstuff pads. White Diamond ??? Shiny black calipers against the silver/black EBC rotors. Look at www.ebcbrakes.com and get to their list of domestic online resellers. You'll have to pick and choose the best price and also make sure the seller has both front and rear rotors...different numbers.

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    mtflight's Avatar
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    Re: thumpy pedal feedback when braking at high speed while turning left

    Quote Originally Posted by C&C View Post
    I'm just guessing here but don't rule out a bad wheel bearing.
    This was NOT my favorite answer, but it was on the money. I went in for a "lifetime alignment" at Firestone and they said my front driver-side hub is loose.

  6. #5
    mtflight's Avatar
    mtflight is offline Cadillac Owners Connoisseur
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    Re: thumpy pedal feedback when braking at high speed while turning left

    Quote Originally Posted by submariner409 View Post
    Shiny black calipers
    I went with red


  7. #6
    mtflight's Avatar
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    Re: thumpy pedal feedback when braking at high speed while turning left

    update: replaced the loose wheel bearing, and a tie-rod about to go, and the pulsation is still there. Had the car aligned, and they test all the chassis components for tightness/wear.. so I guess it must be a rotor...?

  8. #7
    mtflight's Avatar
    mtflight is offline Cadillac Owners Connoisseur
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    Re: thumpy pedal feedback when braking at high speed while turning left

    replaced rotors... still there. I believe it is Stabilitrak-related. A knowledgeable friend suggested it may be something off with the steering position sensor or wheel position sensor.

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