Question about 1994 Oldsmobile Bravada

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Anti lock brake system

How can i easiy disconnect this system it keeps pulsating all my brakes in sequence

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Good Day,

That's usually caused by a bad abs sensor and/or wheel bearing. The quick fix is to locate the fuse box, on that it should be on left side of the dash, only accesable with the driver's door open. Locate the fuse for ABS and remove it, ABS is now disabled, this will trip the ABS light on the dash, also keep in mind you will lock your brakes under heavy braking conditions.


Hope this helps

Posted on Jul 05, 2008

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1 Answer

What is anti lock


If you are referring to "anti-lock brakes", or "ABS", it means that when you depress the brake pedal hard enough, your computer recognizes the pressure and pulsates the brakes to prevent your wheels from locking up and the traditional skidding you see in movies.

ABS stops you quicker in emergency situations.

Feb 08, 2014 | 2001 Mitsubishi Montero Sport 4WD

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I have a warning light on my dash saying there is a problem with the ABS system. Is this a safety problem?


not really. Measn that you most likely have a wheel speed sensor bad. Most often its in the front of the truck and its replaced with the wheel bearing. Although the system is disabled while the light is on the vehicle brakes are not affected

Dec 27, 2010 | 1995 Chevrolet Tahoe

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I have a 2004 montana and the brakes feel like they are not working (pulsating) from time to time. The Van stops OK, the best way to describe it is like squeezing and releasing a water hose as water is...


The "pulsating" you refer to is Normal for a vehicle with ABS (Anti-Lock Brake Systems). It keeps the vehicle braking in a straight line and monitors each wheel with a sensor as to how fast it's turning while braking. The "pulsations" you feel is the ABS Computer turning each individual brake on and off to prevent a lock-up or skid. Perhaps if you road test the vehicle and apply your brakes lightly as in coming up on a stop sign in a residential neighborhood, you'll feel what you consider to be, "normal braking." Pulsations usually come at higher speeds and as to how much pressure you're putting on the brake pedal. You're safer than most now knowing that braking, even in snow, rain or gravel, that your vehicle will stop in a straight line instead of sliding to one side or the other.

If unhappy with ABS Braking, you can always remove the fuse to the ABS computer rendering it inoperative, so you have both choices as to what you'd like to do, right here.

I hope this helps,

~00 Buck~

"Still Living on the Right Side of Dirt..."

May 18, 2010 | 2004 Pontiac Montana

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Strange vibration at the pedal when breaks lock


sounds like warped rotors, if the steering wheel also shakes then that would tell me its in the front, replace the front pads and rotors that will solve your problem.dont try resurfacing youll just have pulsating brakes again in a month or two.

Jan 08, 2010 | 2006 Audi A4

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Whot is an anti lock and where do i find it and how it repaired.? when comming to a stop the brakes seem to pulsate.


you need to take your car in to a reputable brake shop. Your rotors are likely warped causing some pulsating. The anti-lock is an automatic function that helps keep wheels from locking up under hard braking. If your ABS/Anti-Lock light is on, definitely take it to get inspected.

Nov 12, 2009 | 2005 Buick LaCrosse

1 Answer

I feel shaking in brake pedal of my 99 rodeo and squealing


Most likely cause is out of round brake rotors.
They will need to be resurfaced or replaced to correct the pulsation you feel in the pedal.
One other cause I can think of is the ABS (anti lock brake system) is activating due to possibly a bad wheel speed sensor.
You can disconnect the power connector at the ABS control unit and road test the vehicle.
If the pulsation is still there than it is not an ABS problem.

Oct 17, 2009 | 1989 Isuzu Pickup 2WD

1 Answer

94 subaru brake pedal pulsating at red light. car not in motion


sounds like a problem with the Anti-lock brake system if equipped. This pulsating is the anti-lock module trying to regulate the pressure in the brake lines because it thinks the car is still in motion with a wheel locking up. Probably a ABS wheel sensor going bad. To find out for sure the vehicle will have to be hooked up to a diagnostics machine and checked

Jul 16, 2009 | 1994 Subaru Legacy Outdoor

1 Answer

Anti-lock brakes activate on dry pavement


First, is the ABS light on? Does it come on when it's doing it? Make sure the brake fluid is full, and the brakes are still servicable, ie, pads still have meat on them. If so, the abs control module or a speed sensor might be on the way out. This is a safety issue, and I would recommend getting the truck to a good mechanic to have it checked out.

May 24, 2009 | 2001 Chevrolet Tahoe

1 Answer

Problem with my cruise control and ABS light on 03 Explorer


Anti-Lock Control —Vehicles Built After 03/2002 The 3-channel anti-lock brake system consists of the following components:
  • front wheel speed sensors
  • front wheel speed sensor rings
  • hydraulic control unit (HCU)
  • Anti-lock brake control module (ECU)
  • rear wheel speed sensor
  • rear wheel speed sensor rings
  • yellow anti-lock brake warning indicator
The 4-channel anti-lock brake system with traction control and stability assist system consists of the following components:
  • active brake booster with integral solenoid
  • brake booster release switch
  • front wheel speed sensors
  • front wheel speed sensor rings
  • hydraulic control unit (HCU)
  • stability assist module (ECU)
  • stability assist event indicator
  • lateral accelerometer
  • longitudinal accelerometer (4x4)
  • rear wheel speed sensors
  • rear wheel speed sensor rings
  • steering wheel position sensor
  • yaw rate sensor
  • yellow anti-lock brake warning indicator
  • brake pressure transducer
  • traction control switch
---------------------------------------------------------------------
I suspect the abs issue is causing the speed control not to work if it happened at the same time the cruise control stopped working. When the yellow ABS light comes on, it means the ABS is dactivated. You may have a faulty accelerometer which senses acceleration and yaw (side to side lean). I have not seen a bad one but you said it is sensitive to acceleration.
I would unplug it and see what happens. The connector should have a small tab to depress so you can pull the connector out.
Here is where it is:

Accelerometer Removal and Installation
  1. NOTE: The accelerometer is located under the center, rear passenger seat carpet. (I think you have to remove seat for access).
    Cut the carpeting along the perforations.
  1. Disconnect the electrical connector.
  1. Remove the nuts and remove the accelerometer.
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Have dealer hook up tester and pull fault codes if you can't find an easy solution.
Some background info
  • A malfunction in the anti-lock brake system will cause the anti-lock brake control module to shut off or inhibit the system. However, normal power-assisted braking remains.
  • Malfunctions are indicated by the yellow ABS warning indicator in the instrument cluster.
  • The anti-lock brake system is self-monitoring. When the ignition switch is turned to the RUN position, the anti-lock brake control module will carry out a preliminary self-check on the anti-lock electrical system indicated by a three-second illumination of the yellow ABS warning indicator in the instrument cluster.
  • During vehicle operation, including normal and anti-lock braking, the anti-lock brake control module monitors all electrical anti-lock functions and some hydraulic operations.
  • Each time the vehicle is driven, as soon as vehicle speed reaches approximately 20 km/h (12mph), the anti-lock brake control module turns on the pump motor for approximately one-half second. At this time, a mechanical noise may be heard. This is a normal function of the self-check by the anti-lock brake control module.
  • Pedal pulsation coupled with noise while braking on loose gravel, bumps, wet or snowy roads is normal and indicates correct functioning of the anti-lock brake system.
  • Warning Lamp Indicator
    The anti-lock brake system (ABS) uses the yellow ABS warning indicator to alert the driver of a malfunctions in the ABS.
    The yellow ABS warning indicator will come on to warn the driver that the ABS has been turned off due to a symptom that exists in the ABS. Normal power assist braking remains but wheels can lock during a panic stop while the yellow ABS warning indicator is illuminated.

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    Please report back, I am curious if that is what it is. Good luck

    Mar 03, 2009 | 2003 Ford Explorer

    1 Answer

    Anti lock brake system


    If the light is not on it may not be the ABS that is pulsating on slow braking but it may be that your have warped brake rotors, even if the rotors were replaced with the pads the new ones may be warped already, we always check new rotors on a brake lathe before installing them because we have seen this happen many times

    Sep 17, 2008 | 1996 Oldsmobile 88

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