2003 Envoy, abs light came on and emercency brake light on.
Its the coldest day of the year. -9 wind chill makes it feel like -20. Started the car. made a funny noise, crackaly sound. Drove 20 miles just fine until the lights came on. Restarted it and lights are still on. idling rough now. Manual says tow it.
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Re: 2003 Envoy, abs light came on and emercency brake...
There is a chance that your ABS module is going out, or has gone out, although that doesn't explain the rough idle problem. I had the same thing happen on my '01 Tahoe, and it's a known problem with ABS units. Repair at dealer is over $1200.00. Repair yourself with a rebuilt module is $150.00+shipping and a little elbow grease. Get on EBay, search for ABS module repair, and there is a company in Russia, Iowa who will rebuild the one you have, and warrant it for 5 years (GM won't do that with their $1200 repair.).
The rough idle I bet is coincidental and not related.
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Fist pull the code from your onboard computer with a OB2 scanner, that will give you the best clue, then clean and check your wheel sensors especially on the front axle. Then have the abs module checked. Most likely it is the wheel sensors, If you have a lot of brake wear they could be dirty or miss gapped, I would start there
sounds like the ABS kicked in while your wife was coming to a stop. This would be known as overactive ABS. It usually occurs under 5 mph while braking. It is usually caused by a speed sensor signal dropping out at slow speeds which makes the ABS module think that the wheel has locked up. It will then engage the ABS to unlock the wheel even though the wheel is turning. The brake pedal will fade and the grind of the ABS motor will be heard.
If this was an isolated incident it will be difficult to determine the source of the problem. It it becomes more frequent and predictable it will become a lot easier to figure out. Most of the time a scan tool capable of reading ABS data will be used. The vehicle will be driven while monitoring ABS wheel speed data. When the problem occurs the wheel speed on one of the wheels will drop out and then that wheel/bearing/sensor can be inspected.
Did you torque the axle nuts after installing the new hub and bearings to the proper spec?
Have you checked to see if the new bearings are still tight? with the wheel off the ground grab it at the 12 and 6 o'clock position. if there is any play than that could cause the problem.
let me know what you find or if you have any more questions.
Check on possible recalls such as this one listed on Repair Pal found on Google:
I believe you may have a defective computer module that is going to be hard to find as it breaks down when it feels like not when you are expecting it to do so.
This is the recall example I found and listed below, even though it states 2005/06 I still would be concerned...the systems have hardly made any changes since then.
Brakes: SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHTService Bulletin Number: 40525002
NHTSA Number: 10022470
Model Years Affected:2005, 2006Date of Bulletin: 08/2007
Bulletin Summary: ABS LIGHT ON, DTC'S C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE. (REGROUND EBCM GROUND).
Check your brake pads first,as they have a wear warning clip on them.so if you hear a loud screaming noise.Then its quite possible they have worn causing ur warning lights to come on.And i would get anouther quote as that is quite dear for a pump replacement.If it is the pump.good luck pippall!!