I am experiencing a pulsating vibration while braking and have noticed that my front driver side wheel is moving left to right. what could cause this i have new ball joints, tie rods, pitman and idler arms but i don't know what could be doing it. also my abs and brake lights are on. The lights are always on but sometime don't come on for awhile
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Re: Pulsating while braking
The vibration is coming from your rotors. You can either replace them or have them miked to see if they can be turned. For the left to right play you should jack it up and check the lower and uper control arm bushings as they might have osme play in them as well. While you are there u will be able to see if the wheel bearing is loose, you will be bale to fix that when you do the rotors. The brakes lights are from low fluid or faulty Abs sensors that are attached to the front hub, this will be easy to see as the only wires running to the hub right behind the rotors.
Heres hopping that thouse rotors can be turned :)
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does the abs light come on when this occurs? if not it sounds like the brake discs are distorted more than likely the front if abs light comes on it could be abs sensor air gap or reluctor ring failure on one or more wheels
If the rotors where replaced during the brake job this is possible, it could be that the hub always has been bent but the previous rotors where skimmed on the vehicle thus eliminating the brake shudder. If the rotors wherent replaced in the recent brake job, the chances are unlikley the the hub suddenly warped.
The most common cause of brake pulse is wheel bearings, because the rotor wobbles.
The way to tell is that you will also feel it through the steering wheel, when not applying brakes.
If the rotor wobbles, it will also make the brakes spongey, because the wobble will cause some piston retraction, causing a longer throw when applying.
It is usually the fronts that go bad before the back. And one side before the other, often because a bad seal allowed water in. But you can tell by jacking up and feeling for play.
If not a wheel bearing, then I would consider ABS problem, or the rotor was installed wrong.
The grinding sound when braking is almost surely worn brake pads. If an abs sensor is bad it will set the abs light on. Heres an easy way to figure whether to look at the front or rear brakes first. When braking, take notice as to whether the vibration is felt more in the steering wheel or the seat. If it is more in the steering wheel take a look at your front brakes first, and obviously if it is felt in the seat look at the back brakes first. Both front and rear need to be checked out because the pulsating you are feeling is due to rotors or drums that have been heated up and warped. In order to fix both problems, you most likely will need brake pads and rotors/drums. If you just replace the pads, not only will the pads wear away faster due to the damage to the rotors/drums, but your vibration issue will not go away and infact may intensify.