Question about 2001 Buick Century

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I have a 2001 Buick Century Custom. ABS, Trac and service engine light come on after 45 minutes and stay on. I have replaced left rear main bearing/speed sensor twice and wiring harness with same result. Dealer is lost as it keeps sending them back to same location. What should I try next.

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  • 222 Answers

Have they checked the PCM/ECM fuses? some might be bad or the computer itself. does the car run poorly, bad fuel economy? you could go the the emission check place to have it checked. for alot less money it will tell you if it is computer related before spending more for a mechanic to analyse it .$15 in WA State.

Posted on Feb 04, 2018

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MNfisherman

Nate Stansfield

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SOURCE: trac, Abs and Service engine light on - 2001 buick Century

The ABS system including pump may be faulty which is quite common. You will have to take this to dealership or mechanic. Either there is a bad pump or a fault in the electrical system

Posted on Jul 20, 2009

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FUBAR

  • 1168 Answers

SOURCE: what sensor lights will come on when a wheel

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.

KL

Posted on Dec 05, 2009

Lyle D. Rowh

  • 743 Answers

SOURCE: 2001 buick century 3.1 ltr abs light on , service

You could be encountering computer failure. Needs to be looked at.

Posted on Mar 07, 2010

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Anonymous

  • 1 Answer

SOURCE: Service Vehicle, Trac Off, & ABS lights 2001 Buick Century.

I just put in new fron pads in my 2000 buick century and the track off and the anti lock brake light and the service engine soon stays on

Posted on Jun 30, 2010

dttech

dttech

  • 4803 Answers

SOURCE: brake problems with 2002 buick

You most likely have a bad wheel speed sensor. The first thing to do is inspect the wires coming down to the front wheel speed sensors and check for any obvious damage (this is VERY common). If you don't see anything that looks obviously damaged or broken, then you will have to scan your Powertrain Control Module (PCM) and your Antilock Brake System Module (ABS) for fault codes that will lead you to the cause of the problem.

Please also review these articles:

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Posted on May 29, 2011

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1 Answer

1999 buick century abs lights on trac light or no trac directional makes a loud noise when i try to use it and now it only starts once & awhile with the key


check the ABS sensors in each wheel may be dirty clean them but may have to clean the pick up in each wheel as it is teeth fitted to the shaft.

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My Buick had an ABS problem and since I had new brakes installed my mechanic disconnected the wiring. You still have full brakes and they will work fine but the ABS part won't work. Since i did not want to spend a lot of money I drove it that way for about three years. ABS is just an addition to help but not all cars have it.

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1 Answer

Low trac 2001 Buick Century


Your the first in 3 years to ask if you should park it

Very good question & best way to think

You can drive it until you check for codes
& then have the ABS Braking System diagnosed
as trac control is a near useless part of it.

May just have a bad Wheel Speed Sensor

Nov 24, 2012 | Buick Century Cars & Trucks

1 Answer

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could be a bad wheel bearing for the abs and trac light not sure about engine light you need to have someone scan the abs and ck engine light

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1 Answer

Anti-Lock Brale l;ight and Trac Light stay on....Brake pads were just replaced! When driving through puddled water, car looses power steering capability


ABS/Trac Lights are often caused by dirty or broken Wheel Speed Sensor circuits.

The water can get into the power steering belt pulley causing slippage which can result in the power steering loss.

Sep 30, 2010 | 2001 Buick Century

1 Answer

Service Vehicle, Trac Off, & ABS lights 2001 Buick Century.


I just put in new fron pads in my 2000 buick century and the track off and the anti lock brake light and the service engine soon stays on

Jun 16, 2010 | 2001 Buick Century

2 Answers

2002 buick abs, trac off lights come on


BAD WHEE BEARING AND PROBABLY THE PLAY FROM THE WHEEL BEARING HAS DAMAGED THE SPEED SENSOR FOR THE ABS

Jul 29, 2009 | 2002 Buick Century

2 Answers

Trac, Abs and Service engine light on - 2001 buick Century


The ABS system including pump may be faulty which is quite common. You will have to take this to dealership or mechanic. Either there is a bad pump or a fault in the electrical system

Jul 20, 2009 | 2005 Buick Century

3 Answers

I have a 2002 buick century and just had three lights come on....trac off...check engine...and anti-lock. any ideas


One of the things you will want to check is your speed sensors, some times they will also cause your ABS light to come on, and they relate to your Transmission electronics that is why the Check Engine light comes on.

Aug 22, 2008 | 2001 Buick Century

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