Question about 2002 Buick Century

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2002 buick century ABS activates while turning

ABS is activating on turns ,can hear it come on when I make a turn, have already replaced both front wheel hub assemblys and problem is still there though not as severe

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  • johnandnali Aug 03, 2009

    certainly food for thought Thanks



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There are four ABS wheel sensors so assuming that you replaced the front sensors the problem may be coming from the back of the car. Also you might need to clear the fault codes fron the cars computer once you have replaced the faulty sensor.

There are several reasons why your ABS can be playing up like this including other problems with wiring, pressure sensors, ABS controller etc ...

I have included this excellent link which gives very clear instructions and pictures on how to troubleshoot the ABS system and eliminate the possible causes one by one.

Hope this helps. Please remember to rate my answer. Many Thanks.

Posted on Aug 01, 2009


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I drive a 2002 GMC 1500hd with 96,000 miles on it. At lower speeds, my truck seems like it activates the abs system early and causes the pedal to jump. While the pedal jumps you can hear a whining...

If this is occuring at speeds of less than about 5 to 10 mph or during slow speed parking lot types of manuvers then the problem may be due to an ABS sensor at one of the front wheels. The sensor develops a very small build up of corrosion beneath it which pushes it away from the sensor tone ring just enough for the signal to degrade and for the ABS to think the wheel is locked up which, in turn, activates the ABS system which, in turn again, gives you the pedal jump and can extend the braking distance. When I find this type of problem I usually replace both of the front wheel sensors and clean up the mounting surface to fix this problem. Sometimes the problem can be seen using a scan tool that shows the actual readings the sensors are producing but many scan tools aren't quick enough to catch that data.

Jun 30, 2010 | 2002 GMC Sierra

1 Answer

ABS problem with GMC 2002 Sierra

its a low speed abs activation the problem is in the front sensors they need to be cleaned or replaced they [or one] probably has some corrosion on the sensor --[the 99 chevy tahoes had a limited recall over this issue and the fix was to remove and clean the abs sensor or if to corroded replace ] this problem doesnt set off an abs code or trouble light also sometimes the abs will activate by itself at under 4 mph without even touching brake

May 15, 2010 | 2002 GMC Sierra

1 Answer

When turning hearing a whinning noise and the amber abs light is on

That sound is most likely the ABS sensor ring dragging on the sensor itself. I.e a wheel bearing problem. You need to get it fixed very soon before it ruins the ABS sensor and costs you even more money.

Thanks for using FixYa!


Feb 19, 2010 | 2002 Buick Century

2 Answers

What sensor lights will come on when a wheel bearing goes bad in a 2001 buick century custom

Hello mobrien.
Depending on what your car is equipped with. Antilock brake systems work in conjunction with traction control.So if the antilock system has a fault, traction control will also default system off. It may also turn on low pressure in a tire if your car has that feature.
In the bearing/hub assembly on your Buick there is a sensor ring that rotates with the axle. A sensor is positioned close to that ring to read wheel speed.
A failed bearing doesn't necessarily damage the sensor, nor will a bad sensor mean the bearing is bad. But on your vehicle if one fails the assembly must be replaced as a unit.
I hope this answers your question.If you have another leave it in a comment and I will answer you.


Dec 05, 2009 | 2001 Buick LeSabre

1 Answer

Anti lock system activating why driving at low speeds

your traction control switch is activated you need to find the button and push it to turn it off

Oct 29, 2009 | 2002 Buick Century

2 Answers

2002 Buick Century ABS and traction control light come on. If lights do not come on then the brakes moan/groan/vibrate when turning or braking.

I have a 2002 Buick Century. The ABS light came on intermittantly. At first it was only around some turns, then eventually it was on most of the time. In addition the actual ABS brakes pumped which was annoying.

I jacked up my car, took off the front wheel, and found an exposed wire on the hire harness. The wire was encased in a black piece of plastic which was supposed to protect it. You can peel back the plastic to look at the wires inside. The exposed wire was interferring with the signal being sent from the speed sensor.

Wrapping the wire and the entire wire harness in black electrical tape solved the problem. Not sure if my fix is going to last too long, but it definately solved the problem.

I posted two pictures on Flickr ... the URLs follow (if they don't get edited out)

Aug 30, 2009 | 2002 Buick Century

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2002 buick abs, trac off lights come on


Jul 29, 2009 | 2002 Buick Century

1 Answer

2000 buick lesabre abs light

It may be an ABS sensor... however you'll want to get those ABS codes read. A regular code reader doesn't do that, you'll need a specific ABS code reader or take it to a shop.

Mar 23, 2009 | 2000 Buick Century

1 Answer

Stabilize system activates on right turn when braking

Yoho, I beleive you will find a wheel speed sensor fault. As you apply the brake, the ABS unit sees a "0" MPH reading on one of the sensors and assumes the tire is sciding. Therefore, activates the stability system.
Have the vehicle scanned at your favorite shop or go to Auto Zone / Advanced Auto for a free scan. Record the codes.
Let me know.

Feb 13, 2009 | 2000 Buick Park Avenue

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