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Posted on May 02, 2012
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Braking When applying the brakes at any speed the car starts to **** back and forth like if you where driving on a real bumpy road.

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  • Ford Master 3,640 Answers
  • Posted on May 02, 2012
Anonymous
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Joined: Jun 01, 2009
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Check the front brake rotors, they are probably warped. if you feel a pulsation in pedal. thats what the problem is.

5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Feb 03, 2009

SOURCE: 2004 dodge stratus sxt 4 cyl

hey mine does the same thing except only when braking and the problem was cheap rotors that were warping:(

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Anonymous

  • 7 Answers
  • Posted on Sep 26, 2008

SOURCE: My car shimmies upon braking from high speeds

Sounds like warped rotors and worn pads or a worn front end or both. Most shops will check this for free I believe. If it were something like wheel bearings, or rear end you would likely notice this at lower speeds as well with out the brakes being applied. So the direct answer to your question is "Maybe, maybe not". Gee, that was helpful was'nt it?

Ronnie Wilson

  • 1596 Answers
  • Posted on Jan 13, 2009

SOURCE: Dash lights go dim when braking and just odd times driving

Possibly have the Wrong Amp Rating Alternator
Also Check all Grounds under Hood And Engine to BODY GROUND

Anonymous

  • 23 Answers
  • Posted on May 21, 2009

SOURCE: shaking while braking

I DON'T KNOW IF THIS WILL HELP BUT NARROW IT DOWN,WHEN BRAKING WHAT SHAKES,STEERING WHEEL SHAKES BACK AND FORTH IT WOULD BE A FRONT BRAKE ISSUE,MAKE SURE CALIPER HARDWARE IS OK,AND CALIPER SLIDE PINS ARE FREED UP,IF THE WHOLE CAR SHAKES IT'S THE REAR BRAKES,PINS SLIDER AND HARDWARE ON REAR ALSO,HOPE THIS HELPS

Anonymous

  • 33 Answers
  • Posted on Jul 24, 2009

SOURCE: engine revs remain high or increase when braking

Have you tried checking your throttle positioning sensor. Possible vacuum leak or check for carbon build up in the throttle body not letting the throttle valve shut all the way.

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My 2003 cts fill like im driving with a flat tire. Then the service stability system light comes on my navigation. How do I now what to fix?

SERVICE STABILITY SYS
Refer to ABS Description and Operation in Antilock Brake System ! You need to take it an have DTC'S diagnostic trouble codes read ! That will point you to a diagnostic path !
Vehicle Stability Enhancement System (VSES)
The vehicle stability enhancement system (VSES) adds an additional level of vehicle control to the electronic brake control module (EBCM).
Yaw rate is the rate of rotation about the vehicle's vertical axis. The VSES is activated when the EBCM determines that the desired yaw rate does not match the actual yaw rate as measured by the yaw rate sensor.
The desired yaw rate is calculated from the following parameters:
?€¢
The position of the steering wheel


?€¢
The speed of the vehicle


?€¢
The lateral, or sideways acceleration of the vehicle

The difference between the desired yaw rate and the actual yaw rate is the yaw rate error, which is a measurement of oversteer or understeer. If the yaw rate error becomes too large, the EBCM attempts to correct the vehicle's yaw motion by applying differential braking to the appropriate wheel. The amount of differential braking applied to the left or right front wheel is based on both the yaw rate error and side slip rate error.
The VSES activations generally occur during aggressive driving, in turns or on bumpy roads without much use of the accelerator pedal. When braking during VSES activation, the pedal pulsations feel different than the ABS pedal pulsations. The brake pedal pulsates at a higher frequency during VSES activation.
If you do not know about this , I suggest you take it to a ASE certified repair shop that does !

0helpful
1answer

Car dies when going over really bumpy roads

If the brake pedal goes hard right BEFORE the car dies, and not after, then you could have a problem INSIDE the brake power booster. try to verify this next time it dies at a stop, if you can safely pull the dead car off the road into a driveway (or try to make it stall in a bumpy parking lot) - then before you try to restart the car, open the hood, pull off the rubber hose where it's plugged into the brake power booster --> you SHOULD hear a big "Swoosh" of air being sucked into the booster because there's supposed to be a strong vacuum there even after the car stops running. if you get nothing there, your car is dying of an excessive vacuum leak through the brake booster.= bad booster.
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Abs light is on . brakes work just fine and the fluid is full

Hello, lets test that BMW M5 ABS braking system, OK. First, drive down a street with no traffic. Speed up to 30 to 40 MPH. Then slam on your brakes hard, if the brake petal is pulsating and there a noise like clunk,clunk,clunk,clunk noise. Your BMW ABS is working. If not, then the BMW ABS isn't working.


ABS system and what it does to your BMW. All it amount to is it doesn't lock up the braking system. It just applied the brake and release in micro seconds. This keep the vehicle from sliding side ways on wet roads, snowy roads, icy roads or even on dry roads. In other words, it keeps the front of the BMW in a straight line.



If your BMW ABS isn't do this, you'll need to have the ABS braking system serviced. GB...stewbison
Sep 14, 2011 • 2002 BMW M5
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98 chevy 1/2 ton. I was driving home and all of

vacuum booster went bad. the round canister behind the master cylinder. not a real tough job, but if you do not have much brake experience i would advise you to have it done
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When i suddenly apply the brakes,it gives out like a rattling noise but still comes to a halt.this is especialy so on rough surfaces'ERIC from Kenya

ABS kicks in. It's normal on a rough road with hard , sudden braking. On regular road it may kick in too with real hard stop.
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94 s10 chevy 2wd brake pedal fades to floor before stoping

Might check around the big black round muffin shaped chamber adjacent to the master cylinder for a loose vacuum hose or crack therin; the hissing sound seems likely to be the air rushing in as you loose the vacuum that supplies the power to assist your braking effort (power brakes)---as this goes, so goes your peddle until it reaches the actual piston pushing the brake fluid (which should be firm like with non-power brakes).
...maybe have an assistant push on the peddle while you listen with a piece of hose or a stethescope to find the leak (or I suppose the power unit diaphragm could be shot/leaking--hence replacement), but since you said after bumpy road etc, one could hope for a simple dislodged vacuum hose or fixable crack.
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Shaking while braking

I DON'T KNOW IF THIS WILL HELP BUT NARROW IT DOWN,WHEN BRAKING WHAT SHAKES,STEERING WHEEL SHAKES BACK AND FORTH IT WOULD BE A FRONT BRAKE ISSUE,MAKE SURE CALIPER HARDWARE IS OK,AND CALIPER SLIDE PINS ARE FREED UP,IF THE WHOLE CAR SHAKES IT'S THE REAR BRAKES,PINS SLIDER AND HARDWARE ON REAR ALSO,HOPE THIS HELPS
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CLIO CUO PULLING STEERING

could be the lower ball joint or the idler, idler usually when goes it will wobble while driving and pull to one side at a time, more so when braking. its attached to the steering, its most probably this, check it and if there is a lot of movement in it then replace it. if its un easy on bumpy roads it can also be the drop links these do go and need replacing from time to time as they control the anti roll bar, and bumpy roads damage them.
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