ALERO OWNERS Anyone have anti lock and off trac light on at same time?


jratism
01-25-2006, 12:45 PM
My 2002 Alero has 3 lights come on 1) Anti Lock Break 2)Off Trac 3) Service vehicle soon. Anyone else experience this?? What may it be?? and How much to fix? Its $75 bucks just to hook it up to a computer.....

WHAT MIGHT HAPPEN IF I KEEP DRIVING ON IT??

Thanks

JTrujillo86
01-25-2006, 03:14 PM
I believe you mean in addition to the Trac Off and ABS lights, your Service VEHICLE Soon light is on. The Alero's have both: a Service Engine Soon light and a Service Vehicle Soon light. With the three lights you're talking about, have a bad wheel bearing or speed sensor at one of the wheels. Once you figure out which wheel the fault is coming from, you will need to replace the entire hub assembly.

I'm not sure exactly how to locate which wheel the fault is at, but maybe some of the other guys can help you out. The only way that I know is to hook it up to a GM scan tool. When my speed sensor went out, my car was still under warranty. The dealership pulled a code that said "excessive right front wheel spin". If you have a bad speed sensor, the code that your car will have logged will be similar to that.

- Jeremy

sailinstud420
01-25-2006, 04:36 PM
Am I crazy or did you say the whoel hub needs to be replaced? Can't the bearing just be pressed out and a new one put in? I would like some info on diagnosing exactly what wheel bearing it is. Check out my post from a day or two back, entitled "alero abs not working..."

JTrujillo86
01-25-2006, 06:16 PM
Yes...you read correctly. The entire hub ASSEMBLY needs to be replaced. It is all an enclosed, sealed unit in which the speed sensor and bearing are not serviceable.

- Jeremy

patricia40
01-25-2006, 10:22 PM
The exact same thing just happened to me yesterday. I am taking my car to the dealership tomorrow, I will post the result tomorrow evening. This is just something else to add to the long list of troubles I have had with this car.
T

sailinstud420
01-25-2006, 11:13 PM
why cant the bearings be pressed out of the hub? I have done this before on a ford focus....

JTrujillo86
01-26-2006, 12:26 AM
Because it is a SEALED assembly. You can't dismantle or service it and because of this GM and aftermarket suppliers only sell the entire hub.

- Jeremy

BNaylor
01-26-2006, 07:48 AM
Because it is a SEALED assembly. You can't dismantle or service it and because of this GM and aftermarket suppliers only sell the entire hub.

- Jeremy

:iagree:

sailinstud420
01-26-2006, 10:07 AM
how many $$$ for a new hub?

patricia40
01-26-2006, 09:24 PM
Good evening everyone, Well I took my 2000 Alero to the dealership this morning, and yes it is the wheel bearing, it is also the wheel bearing wiring harness. Then the list goes, you see those warning lights aren't just for the wheel bearing. I also need to replace plugs and wires because antifreeze has been leaking thru my engine therfor I was having a misfire plus a broken tie rod end as well as a multitude of other problems totalling a cost of $3500 (canadian). No this isn't because I am a girl since I do know my way around a car. Buyer Beware!!! Aleros suck!!!
T:cwm27: PS the wheel bearing alone is $800 for the part plus install.

JTrujillo86
01-26-2006, 10:06 PM
Eff that...buy the hub assembly and the wire harness from GMPartsDirect.com. They have WAY better prices and have an independent shop do the work.

- Jeremy

sailinstud420
01-26-2006, 10:56 PM
jeremy- how come that catalog is down on gmpartsdirect? I have never seen this site before, but it looks like a good way to save a few bucks. Can you only find items by part #'s or can you look them up by the vehicle? Any idea how much a hub assembly costs on that site?

skrizan
01-27-2006, 08:01 AM
$800 plus install!!! The Dealership in Michigan quoted $300 parts and labor for one.

I did both front wheels on my 2000 Alero and I got the bearing/Hub assembly from NAPA for $105 each with a lifetime guarantee! I don't know if I got bad ones or what because the lights came back on about 3000 miles later. At the time I didn't realize I had a lifetime guarantee, so I went a long time with the lights on. I ended up taking it to dealership and they told me the right side was bad. (and wanted $300 to fix it). I said no thanks, and found my receipt and realized I had a lifetime guarantee. I got the new part and put it on the right side and when It worked for about a mile and the lights came on again. I did a resistance test on the new one and the one on the other side and they were different. So I took the other side off and got a free replacement and the resistance was the same as the other one. that was 20,000 miles ago and still no lights. I can do one in about 45 minutes now with all the practice.

sailinstud420
01-27-2006, 09:20 AM
what resistance reading should you be getting on those? I had one at 1.10 and the other was down at 1.00....

DANCHAN
01-27-2006, 10:30 AM
Well Im afraid to go to get it checked now I have all the lights and some electrical on top of that door locks opening closing on their own while driving or parked now the thing with when my lights come on(ABS, Trac off etc..) I hear a ping noise almost like my ABS does when sliding in snow or ice any ideas also had a dead battery the other day any ideas also driving around with a broken belt on right rear tire thought that might throw it off, im just about ready to drive this thing off a short pier

sailinstud420
01-27-2006, 06:41 PM
danchan- I don't think anyone understood what you just said. Try using some punctuation, and I am sure it would make things alot easier for people to understand.

In the meantime can someone inform me on my last post ^. What should the resistance be for the wheel speed sensors?

skrizan
01-28-2006, 11:26 AM
what resistance reading should you be getting on those? I had one at 1.10 and the other was down at 1.00....

Sailinstud, The GM service manual says the the reading should be 950-1250.
I'm not sure what kind of multimeter you are using, but if you can change the range, you would probably get 1000 and 1100, which are both in range. When I replaced mine, both of the new ones read 1050 exactly. The big difference between the two of yours might make a difference, but I'm no expert.

The other test the manual suggests is to spin the wheel by hand as fast as you can and check the ac voltage. If it is over 100mV you are supposed to replace it also.

Good luck.

kjk_L98
01-30-2006, 11:22 PM
I've got this same problem (and every other Alero problem known to mankind); Even though I've got the three lights on, I'm not showing any codes. Does this eliminate the VSS and indicate hub/bearing failure?

Also, is a torque wrench the only specialty tool required for hub replacement?

thanks

BNaylor
01-31-2006, 06:45 AM
I've got this same problem (and every other Alero problem known to mankind); Even though I've got the three lights on, I'm not showing any codes. Does this eliminate the VSS and indicate hub/bearing failure?

Also, is a torque wrench the only specialty tool required for hub replacement?

thanks


It depends on what type scanner is used. Not all scanners will read GM Chassis/ABS codes. It must be ABS capable like a Tech II, etc. to tell you which wheel sensor is bad.

A bad vehicle speed sensor (VSS) should cause other problems like erratic shifting and no speedometer reading so I doubt the VSS is the cause.

Other tools required is a 36mm socket for the axle nut and technically a hub puller should be used to remove the hub from the axle shaft spindle. Sometimes they comeoff easy and other times they don't.

The axle nut torque value ranges from 150 - 180 ft-lbs depending on what the hub manufacturer specifies. A new axle nut should be used.

rejoyce17
02-01-2006, 04:34 PM
I have replaced the right HUB assembly twice on my 2003 alero, and the 3 light are on once again. Has anyone ever found a resolution to this problem so that it doesn't happen again. What would be causing the HUB assemblies to wear out so quick?:banghead:

JTrujillo86
02-01-2006, 09:34 PM
The cause of the lights are either a bad bearing or bad wheel sensor...going back to the whole "sealed assembly" thing...when one goes out, the entire hub needs to be replaced. Its possible that this time you may have a bad hub on the opposite side.

- Jeremy

venado123
02-04-2006, 05:44 AM
My best advice is to buy one with a nice long warranty!

-v-

nc27101
02-06-2006, 11:28 AM
I am having the same problem with my '04 Alero with 55K miles on it. Is the replacement of the hub assembly difficult? Anything I should be aware of, or special tools needed?? Much thanks in advence!!!

BNaylor
02-06-2006, 11:37 AM
I am having the same problem with my '04 Alero with 55K miles on it. Is the replacement of the hub assembly difficult? Anything I should be aware of, or special tools needed?? Much thanks in advence!!!

It requires some special tools but can be done DIY. The axle nut is 36mm so you'll need that socket and a 1/2 inch drive breaker bar. Sometimes the hub will not remove easily off the axle spindle so you may need a hub puller. Also, you will need a torque wrench because after completion the axle nut must be properly torqued down to a range of 150 ft- lbs to 180 ft-lbs depending on spec provided by the hub manufacturer.

Everything like steering and suspension components that attaches to the hub needs to be removed.

evilbite
02-09-2006, 03:12 PM
I have a 2004 with the same issue. I purchased the replacement at Auto-Pak for $116. How difficult is it to remove the old hub assy?

nc27101
02-09-2006, 03:35 PM
Well, I just did both sides of my girlfriends car on Tuesday night. Each side took me about an hour. As stated previously, get a 36mm socket to remove the nut, and I needed to get a hub puller ($25) to get my hub off.. But it was very easy!! Just break the hub nut free while still on the ground, remove the wheel, pull the caliper (2-bolts) and the 3 bolts that hold on the hub assly. Use the hub puller to remove the old hub assly. Might have to monkey with the sensor wires... but the one I just did has no ABS, so the wires were dead.. Then re-assemble. EASY!

evilbite
02-09-2006, 06:17 PM
Sounds easy enough....thanx....

xtreme barton
02-09-2006, 06:56 PM
man i hated my alero .... thank god for insurance... mine got smashed and they gave me a check for the whole thing...

i had the same problems... i had an extended warranty and the light came on right after i took it in for an oil change... i took it back and they told me they left a plug un-plugged ... well whatever they did they made it go out for 3 days and then cam back on... thats when they told me i needed both my hubs replaced...

what a load .. i used to love oldsmobile cause i owned a 63 super 88. man how i am glad they are gone.. now i just have to stay away from pontiac and buick..

evilbite
02-09-2006, 07:20 PM
Well, I haven't had that much trouble with mine....til now...lol

Firehead3
03-25-2006, 03:40 PM
Never mind fixing it. I've aready spent 1500. Two new hubs, and one bearing over 5 years. Anyone know how it can be safely disconnected. I don't need the ABS anyway!

BNaylor
03-25-2006, 04:03 PM
Never mind fixing it. I've aready spent 1500. Two new hubs, and one bearing over 5 years. Anyone know how it can be safely disconnected. I don't need the ABS anyway!

Disconnect safely probably not. The problem is the wheel sensors are not only used for the ABS braking system but for the traction control system and the tire pressure monitor system. If you can figured out a way to do it let us all know. Good luck!

Firehead3
03-26-2006, 03:10 PM
I've pulled fuses. There are four. One is a 40A main, one a relay and two small ones 10A to battery/ign. When I pull them everything seems to work fine, but then the other Red Brake lights come on tat may tell you of other problems. I gave up and put them all back.

Mick217
03-31-2006, 11:04 AM
I just had the second wheel hub replaced yesterday on a 2004 with 48k. A local garage did each for about 250.00, so I am more fortunate than most

GM has had the problem since the car was introduced. To NOT have fixed the issue is highly negligent on the part of the company. Is it any wonder people are switching to Japanese cars? We have owned seven new GM autos. This one is likely the last one.

BNaylor
03-31-2006, 12:01 PM
I just had the second wheel hub replaced yesterday on a 2004 with 48k. A local garage did each for about 250.00, so I am more fortunate than most

GM has had the problem since the car was introduced. To NOT have fixed the issue is highly negligent on the part of the company. Is it any wonder people are switching to Japanese cars? We have owned seven new GM autos. This one is likely the last one.

I don't know if the grass is greener on the other side of the hill but Japanese cars have their fair share of problems too. Case in point my neighbor bought their Acura back in 2002 which is the same time we purchased our 2002 Alero. He's been through one transmission and it was down for a week. I still have the original tranny and it still runs like a champ. I'm quite sure he paid more for his Acura than we did for our Alero. Just my two cents. :2cents:

y2kalero
04-07-2006, 08:46 PM
i had the same problem with the lights, also had a wheel bearing go. got the hub replaced for $250 and no more light problems

alerohottie
05-18-2006, 12:37 PM
Yes, both of my lights came on. I had bad bearing on the front of the car. $600 repair. Ouch!

xf10036
01-23-2008, 12:04 PM
If you have service engine light on, trac. off light and the ABS light on the same time, you may be able to get it fixed my reprogramming the power control module (with updated software calibration). Mine was fixed for free at a dealer under a recall campaign when GM called me yesterday.

BNaylor
01-23-2008, 12:17 PM
If you have service engine light on, trac. off light and the ABS light on the same time, you may be able to get it fixed my reprogramming the power control module (with updated software calibration). Mine was fixed for free at a dealer under a recall campaign when GM called me yesterday.

Thanks for your input, however, we have a policy of not resurrecting old threads. Thread closed. You may start a new post advising Alero forum members.

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