BAC Forum

General Boards => General Discussion => Topic started by: Gary Merrifield on August 08, 2018, 06:28:37 AM

Title: Annoying hum
Post by: Gary Merrifield on August 08, 2018, 06:28:37 AM

What is the annoying hum above in the area above the steering wheel?

Title: Re: Annoying hum
Post by: Keith Moffett Co-Admin on August 08, 2018, 10:22:52 AM

Can think of two possibilities.
1)  Nav system power head and CD changer
2)  Our breaker panel is straight up from my left shoulder.   Perhaps a breaker is getting weak?

A possible solution is to buy a auto stethoscope and trace the sound?

Title: Re: Annoying hum
Post by: Mike Shumack on August 08, 2018, 12:40:17 PM

On my '05 there are two speaker-like devices in that area. One if for the Tag Axle "raised" alarm, and the other is the Turn Signal "on" chime.

I think there is also a Low air pressure buzzer in that vicinity. I suppose any  of these could be malfunctioning or getting feedback resulting in noise.

Do you have the removable dash access panel above the steering wheel? If so, pop it off and see if you can narrow down the source of your hum.
Good luck.

Title: Re: Annoying hum
Post by: Gary Merrifield on August 08, 2018, 02:11:11 PM

This noise is more overhead.

Title: Re: Annoying hum
Post by: Steve Huber on August 08, 2018, 02:15:14 PM

Gary,
Make sure your overhead fan isn't on.
Steve

Title: Re: Annoying hum
Post by: David T. Richelderfer on August 08, 2018, 02:18:14 PM

My guess is a radio/Bose/TV speaker is humming or, as Steve opined, perhaps the overhead defroster fan is on.