Question about 2003 Oldsmobile Alero

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Antilock light is on and trac light is on sound

The antilock light is on and trac light is on.its sound like the tire is rubbing if you turn it to the left it stops but when you turn it to the left it gets louder. the faster you go the louder it gets . ive put new tires on the front and brakes and its not the roaders. and ive replaced the hub asembly. please help

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You have a bad hub bearing. 100% garunteed. The light is on because the bearing is so bad it hit the sensor for the abs & traction control , breaking it. So you're gonna need a bearing, a sensor,probably new brake pads,any seals{probably one} & a shop that can do it. The bearing is pressed in & needs to be pressed out. Heating & beating is not a good idea.

Posted on Jun 20, 2009

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Posted on Jan 02, 2017

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1 Answer

How to turn off antilock and trac off light, after replacing battery and alternator?


If those lights are on it indicates a fault exists in the system, you must have a special scan tool hooked up to read the fault codes that are stored when the lights are turned on by the computer control module.

Jan 25, 2017 | Cars & Trucks

1 Answer

What does the trac off light on a hundai elantramean


Your car has disabled the traction control for some reason. Common reasons include

-tires spinning on ice or snow
-slipping clutch or transmission
-misfiring engine
-car is grumpy

Traction control is sort of the opposite of antilock brakes. When you push on the gas, it cuts back power to the wheels if they lose their grip.

Feb 19, 2015 | 2000 Hyundai Elantra GLS

1 Answer

I have a 02 Cavalier that when your driving the Trac off light comes on when the light is on it runs rough and shifts hard but if i put it in park turn it off and restart it it's fine


There is a malfunction in you antilock brake/traction control system. When the TRAC light is on, the computer is trying to tell you either 1. That the traction control is active and is controlling your brakes, engine and transmission to stop a wheel skid, or 2. There is is a malfunction in your traction control system.

In the first case above, the TRAC light will only be on for a few seconds until the conditions causing your wheels to slip no longer exist. If the light is staying on even though there is no way your wheels are slipping or skidding, then this is a malfunction. You must scan both your Powertrain Control Module (PCM) and your Antilock Brake System (ABS) module to properly diagnose a problem with this system.

Jul 16, 2011 | 2002 Chevrolet Cavalier Coupe

1 Answer

My trac off abs and service vehicle soon lights are all on mechanic said wheel barrings are fine ,,whats the problem and is it safe to drive 425 mile out of town and back?


Probably just a wheel sensor out. It will be fine to drive that far and back. You wont have tracton control or antilock brakes. Meaning that if you slam on the brakes the tire can lock up and skid. When the abs is out it reverts to the old braking system that they used in all vehicles for decades.

Jul 02, 2011 | 2002 Oldsmobile Alero

1 Answer

My trac light says trac off, and my abs light is on. what does that mean? I have a 1999 grand am Pontiac.


the trac light is the traction control, the abs light means the antilock brake system is not functioning properly. the trac control is no issue. the abs will not cause the brakes to fail but they will lock instead of pulsing.

Mar 31, 2011 | Pontiac Grand Am Cars & Trucks

1 Answer

My trac light is on, on the dash board. Where is the wheel sensor located ?


Your vehicle is equipped with 4 of them. They are located at each of the 4 wheels. There are other reasons that the Traction Control light can come on...wheel speeds sensors are not the only reason, athough they are the most common. The traction control system works with the engine/powertrain control system and with the antilock brake system. A bad wheel speed sensor will usually also turn on the Antilock Brake (ABS) light. If the Check Engine light is also on, you could have an engine control problem causing the Trac light to come on.
.
If the Trac light is on by itself, you may just have the traction control turned off. The Trac Off switch is located on the steering column.

If none of the above solves your problem, then you will have to scan your computer system to find out why the light is on. ( i.e. failed wheel speed sensor...but which one?)

Feb 20, 2011 | 2005 Dodge Grand Caravan

1 Answer

I'm actually having a couple of problems with my 2002 buick century. The first of which is whenever I am driving my car there is a high pitched spuealing noise coming what seems to be the front passenger...


Good Evening. First off I would like to give you a little advice on your passenger side windshield wiper. On your windshield wipers there is a nut at the base of the arm, try tightening that nut down (of course while your wipers are off) and that should make it work going off the description of your wiper problem. Your Antilock and trac off are lights that are tied into your antilock brake system and will both come on together. Your high pitched squeal could be a few things like brake pads, or a backing plate rubbing. Your hub assembly really won't make a squeal but would be a good reason for the anti lock light to be on. Your best bet is to have the antilock system scanned for codes to know exactly what is making the system to pass a code. Any other questions please feel free to ask. Hope this helps.

Aug 07, 2010 | 2002 Buick Century

1 Answer

The abs and trac lights stay on when the engine is running. how do I fix the problem ?


Something as simple as a different tire size can cause the abs to go nuts. I even had it where the two tires were the same size. But a different brand name. Each manufacture has their own tire sizing so not all tires a equal in size. Even though it says on the side of the tire that they are the same size.

Sometimes the cooper inside the insulation of the wires going to the sensors corrodes. Especially on the front units. It reads more ohms than normal but not open and is very intermittent. However moving the wires my make it work for a while. That's why replacing bearings seems to fix the problem but it comes back after a while.

You can test the speed sensors yourself...
Front sensor specs:
956 to 1240 ohms in 41 to 110 degree weather
at least 100mV AC (NOT DC!) volts when hub is spun by hand
Rear sensor specs:
950 to 1300 ohms in 41 to 110 degree weather
At least 100mV AC (NOT DC!) volts when hub is spun by hand

Here is some information from service bulletins that could be related to the problem. The traction control, antilock brakes, and tire inflation monitor all use wheel speed sensor input.

This first bulletin seems like it could be the problem because engine movement is involved:

GM Corporate Bulletin 00-06-04-049B
This Bulletin covers a problem that can cause multiple failures, one of which is an Antilock brake problem, and covers 2000-2003 Impala and Monte Carlo built prior to 2/03.
Check to make sure the wiring harness adjacent to the AC accumulator/dryer is not rubbing against the ac accumulator chaffing through the insulation of the wires in the harness.

GM Corporate Bulletin 03-05-25-008 overview:
GM front wheel speed sensor harness replacement - 2001-2003 Buick Century, Regal; 2001-2003 Chevrolet Impala, Monte Carlo; 2001-2002 Oldsmobile Intrigue; 2001-2004 Pontiac Grand Prix
This bulletin is about inspecting the harness going to the front wheel speed sensor for wear from contact with front suspension parts.
Repair harnesses/leads are available that can be spiced onto the main harness.
2001-2003 impala & Monte Carlo – Right side - 10340313
2001-2003 impala & Monte Carlo – Left side - 10340314

SERVICE BRAKES, HYDRAULIC:ANTILOCK:ABS WARNING LIGHT
• TSB #030525008 -- INTERMITTENT/CONSTANT ANTI-LOCK BRAKING SYSTEM (ABS) MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED. *TT (NHTSA ID #10004719, OCTOBER 01 2003)

Hope helped.

Nov 05, 2009 | 2001 Chrysler Concorde

2 Answers

A bytton in my car an when i push it the letters trac on


the button is for a feature call low traction , when the low trac light is on ( on the dashboard ) the traction control system is off. when you press the button again the light should go off ( low trac. on) I leave mine on all the time. it works with the antilock brake system. if the computer detects that the wheels are starting to slip or slide , it cycles abs on and off quickly to help you remain in control of car, feature is more designed for driving on icey roads. Just leave low trac. on and dont worry about it ( no trac, light on dash) hope this helps S.R. Peace

Mar 21, 2009 | 2001 Buick Regal

2 Answers

Trac off and antilock lights are on


try unpluging your battery cables for 10 to 15 mins.for the comp to reset.itself.

Sep 19, 2008 | 2000 Oldsmobile Alero

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