Vehicle is a 2003 GMC Envoy, approx. 110k miles. I've owned it since July.
Lately here it has been cold, hasn't gotten above 10 degrees F since before Christmas. When it is very cold, especially starting it up in the morning, it turns over very hard (battery is only a year old, AAP Gold) and often the ABS light will go on. Also, there is a buzzing noise coming from a small speaker located just above the driver's seat belt. If I let the vehicle warm up 5 or 10 minutes, the sound goes away, but the ABS light stays on. Once the vehicle is warm(ish), sometimes the ABS light will go off on its own when I start to drive, and sometimes it will stay on unless I restart the vehicle.
Today, it was -7 when I started it and there was the sound but no ABS light.
From what I've read it could be nothing (others have reported this), or could be the ABS sensor in one of the hubs. Supposedly the dealer replaced one of the hubs (which should include a new ABS sensor) before putting it on their lot this summer. The one thing that concerns me a little bit is that on occasion I can feel the ABS kick in when braking while going slowly.
All of these things only occur in cold temperatures, less than 20 degrees F.
The thing that concerns me a bit is the audible sound this morning without the ABS light going on, so it seems they might be two different things.
I'm thinking of getting it scanned to see if it is a ABS sensor, and if so what one. I can get one for $68 from 1AAuto.com and it doesn't look like too difficult of a job.
Thoughts?
Lately here it has been cold, hasn't gotten above 10 degrees F since before Christmas. When it is very cold, especially starting it up in the morning, it turns over very hard (battery is only a year old, AAP Gold) and often the ABS light will go on. Also, there is a buzzing noise coming from a small speaker located just above the driver's seat belt. If I let the vehicle warm up 5 or 10 minutes, the sound goes away, but the ABS light stays on. Once the vehicle is warm(ish), sometimes the ABS light will go off on its own when I start to drive, and sometimes it will stay on unless I restart the vehicle.
Today, it was -7 when I started it and there was the sound but no ABS light.
From what I've read it could be nothing (others have reported this), or could be the ABS sensor in one of the hubs. Supposedly the dealer replaced one of the hubs (which should include a new ABS sensor) before putting it on their lot this summer. The one thing that concerns me a little bit is that on occasion I can feel the ABS kick in when braking while going slowly.
All of these things only occur in cold temperatures, less than 20 degrees F.
The thing that concerns me a bit is the audible sound this morning without the ABS light going on, so it seems they might be two different things.
I'm thinking of getting it scanned to see if it is a ABS sensor, and if so what one. I can get one for $68 from 1AAuto.com and it doesn't look like too difficult of a job.
Thoughts?