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2008-2013 Cadillac CTS General Discussion Discussion, Pulsing Brakes? in Cadillac CTS Second Generation Forum - 2008-2013; Okay I am brand new to this forum and I know that I may get flamed for this, but I ...
  1. #1
    jake2214 is offline Cadillac Owners Member
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    Pulsing Brakes?

    Okay I am brand new to this forum and I know that I may get flamed for this, but I just have a question about my AWD 2009 cadillac CTS AWD. When I am at high speeds coming off of the freeway or so, when I start to slow down I feel a pulsing sensation, and the shifter knob moves back and fourth. I am guessing that my rotors are warped? or is this just a normal thing for cadillacs this year?

    Thanks

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    gohawks63's Avatar
    gohawks63 is offline Cadillac Owners Connoisseur
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    Quote Originally Posted by jake2214
    Okay I am brand new to this forum and I know that I may get flamed for this, but I just have a question about my AWD 2009 cadillac CTS AWD. When I am at high speeds coming off of the freeway or so, when I start to slow down I feel a pulsing sensation, and the shifter knob moves back and fourth. I am guessing that my rotors are warped? or is this just a normal thing for cadillacs this year?

    Thanks
    Warped rotor. Needs to be resurfaced.

  4. #3
    arw1510 is offline Cadillac Owners Enthusiast
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    General question: what's anyone's past experience with how long the original pads and rotors lasted? More specifically je5 brakes

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    Cadillac Cust Svc's Avatar
    Cadillac Cust Svc is online now Cadillac Customer Service
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    Re: Pulsing Brakes?

    Quote Originally Posted by jake2214 View Post
    Okay I am brand new to this forum and I know that I may get flamed for this, but I just have a question about my AWD 2009 cadillac CTS AWD. When I am at high speeds coming off of the freeway or so, when I start to slow down I feel a pulsing sensation, and the shifter knob moves back and fourth. I am guessing that my rotors are warped? or is this just a normal thing for cadillacs this year?

    Thanks
    Hello jake2214,

    Welcome to the forum! This is a great site with a wealth of information and I see you have already got some! If you are still concerned about the pulsing sensation in your CTS and are planning on taking your vehicle to the dealership, I would be more than happy to assist you in working with them. Please private message me or reach out to me at socialmedia@gm.com if you would like my assistance. When you send your email, please be sure to include “ATTN GREG” so that it gets delivered straight to me. Thank you very much for your time.

    Gregory W.
    Cadillac Customer Care

  6. #5
    dandunham's Avatar
    dandunham is offline Cadillac Owners Member
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    Re: Pulsing Brakes?

    Nope, Not normal. it should be a smooth stop. mine had a slight pulse when slowing, I took it in under warranty and they resurfaced while I waited and its great now. I have no idea what brake rotors cost to resurface but it should not be much. depending on how many miles you have you might think about just putting new rotors on with new pads and call it a day.

  7. #6
    loosend is offline Cadillac Owners Fanatic
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    Re: Pulsing Brakes?

    No flame here--My '08 did it when I bought it at 30K miles and the rotors needed to be turned at that point but I now have about 50K miles and it is doing it again. I am going to pull the wheels to make sure I have a good amount of brake pad left and if so, will have them turned again. However, when I need new pads, I am going to buy new rotors since this problem recurred. The brakes are excellent as designed IMHO.

  8. #7
    Joe
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    Re: Pulsing Brakes?

    Yup warped rotors...I think, but I'm kind of reaching here, these brakes are two small for this vehicle. I feel they should all be the larger design that is on the sport model. I've been through this twice on this vehicle WAY before I need the pads replaced and that is not normal. Don't bother cutting them it will just come back; replace the rotors with a quality rotor and keep your fingers crossed. best of luck

    Joe

  9. #8
    like2drive's Avatar
    like2drive is offline Cadillac Owners Fanatic
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    Re: Pulsing Brakes?

    Been though that as well. At 10K miles, front rotors resurfaced under warranty because of vibration upon braking. At 20K miles, resurfaced again under warranty. At 30K miles, front rotors replaced under warranty. At 50K miles, I replaced the front rotors and pads myself. Now, 57K miles and still smooth when braking, at least for now! My brakes are the standard JE5.

  10. #9
    MKWAGON is offline Cadillac Owners Fanatic
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    Re: Pulsing Brakes?

    Warped rotors eh? Doubtful. Maybe read this: http://www.stoptech.com/technical-su...nd-other-myths.
    And then this: http://www.stoptech.com/technical-su...and-procedures.

    Then get some new rotors and break them in as outlined. I'm sure your problem will be solved. I've never had such issues on any of our vehicles since following these procedures. MK
    RAB and C&C like this.

  11. #10
    Joe
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    Re: Pulsing Brakes?

    Great information but useless to the average driver that slams on his brakes when doing about 75mph on the way to to work then splashes through a few puddles. You can break those pads and rotors in all day long and transfer all the metal you want, but two months later when you are wearing a f...ing cup of coffee on your lap after barely eating the guy in front of you ass, that break in has turned to shit; This is called a "HOT SPOT" and lovingly called a warped rotor. Save all that technical B.S. in a nice little folder in you computer and go buy some good quality (not racing) pads and rotors and continue to drive normal. A hot spot is the result of heat treatment gone bad. When the pad hits these little spots there is a speed up and slow down process that pulses the pad and ends up in the palm of your hand. I still believe that GM should have used the larger rotors on ALL the CTS's ....have a fun day
    Bandit1 and snofun3 like this.

  12. #11
    snofun3 is offline Cadillac Owners Fanatic
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    Re: Pulsing Brakes?

    Quote Originally Posted by Joe View Post
    Great information but useless to the average driver that slams on his brakes when doing about 75mph on the way to to work then splashes through a few puddles. You can break those pads and rotors in all day long and transfer all the metal you want, but two months later when you are wearing a f...ing cup of coffee on your lap after barely eating the guy in front of you ass, that break in has turned to shit; This is called a "HOT SPOT" and lovingly called a warped rotor. Save all that technical B.S. in a nice little folder in you computer and go buy some good quality (not racing) pads and rotors and continue to drive normal. A hot spot is the result of heat treatment gone bad. When the pad hits these little spots there is a speed up and slow down process that pulses the pad and ends up in the palm of your hand. I still believe that GM should have used the larger rotors on ALL the CTS's ....have a fun day
    Exactly correct. Anyone who thinks warped rotors won't happen after some kind of specialized break-in doesn't live in the real world of I95 (or I-5, or, or) commuting.

    In 30k I had three sets of rotors on my car (yes, I drive hard), which was more than I ever had with any other car except for my 84 Supra. One time the dealer screwed them up, but otherwise the brakes are marginal for the weight of the car (savings weight, saving money, padding the maintenance opportunities etc).

    If you drive the car hard, expect to be doing rotors fairly regularly. There's a couple other threads about this here regarding the same issue.

  13. #12
    loosend is offline Cadillac Owners Fanatic
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    Re: Pulsing Brakes?

    Quote Originally Posted by MKWAGON View Post
    Warped rotors eh? Doubtful. Maybe read this: http://www.stoptech.com/technical-su...nd-other-myths.
    And then this: http://www.stoptech.com/technical-su...and-procedures.

    Then get some new rotors and break them in as outlined. I'm sure your problem will be solved. I've never had such issues on any of our vehicles since following these procedures. MK
    So turning the rotors fixes the pulsing because it removes the remants of the brake pad that is causing the un-even surface and saying the rotors are warped is a misnomer. However, the rotor surface is still the problem. Interesting.

  14. #13
    dandunham's Avatar
    dandunham is offline Cadillac Owners Member
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    Re: Pulsing Brakes?

    My last car had under sized rotors (Infinity) and it was a continuous problem. I tried slotted and drilled rotors all with the same problem. the factory just used too small of a rotor. I also had an Audi that was a far heavier car but with much larger rotors and never had a problem in 165K miles. Just looking at the standard brakes on this car they look undersized to me. so I fully expect to continue to have pulsing brakes over time.
    it sounds like some of you have found a brand that works well - what is that brand? are the kits that can be had to upsize the rotors?
    Even with just a slight pulse I find it very irritating that this happens on any car.
    If anybody has a proven good solution please post and let us all know.

  15. #14
    billeee is offline Cadillac Owners Fanatic
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    Re: Pulsing Brakes?

    Probably warped rotors. I have been following this forum for a couple of years and there are not a lot of brake problem threads.

    Were the wheels removed and replaced just prior to the problem starting? Improper lug nut torque can warp the rotors.
    tinman, tinman and tinman like this.

  16. #15
    Bandit1's Avatar
    Bandit1 is offline Cadillac Owners Fanatic
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    Re: Pulsing Brakes?

    Quote Originally Posted by Joe View Post
    Great information but useless to the average driver that slams on his brakes when doing about 75mph on the way to to work then splashes through a few puddles. You can break those pads and rotors in all day long and transfer all the metal you want, but two months later when you are wearing a f...ing cup of coffee on your lap after barely eating the guy in front of you ass, that break in has turned to shit; This is called a "HOT SPOT" and lovingly called a warped rotor. Save all that technical B.S. in a nice little folder in you computer and go buy some good quality (not racing) pads and rotors and continue to drive normal. A hot spot is the result of heat treatment gone bad. When the pad hits these little spots there is a speed up and slow down process that pulses the pad and ends up in the palm of your hand. I still believe that GM should have used the larger rotors on ALL the CTS's ....have a fun day
    Been there...done that. I agree.

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