SOLVED! 2003 Bravada Buzzing B-pillar (looks like speaker)

[GreenBravada]

What is this buzzing bee in my ear? When I get into the 2003 Bravada this thing buzzes for a minute or two. It seems as if it might be part of an old fashion hands-free cellular phone system. There is a short (broken) antenna in the driver side rear window glass. Just got this rig, so it's a real newbie question. Don't see it in owners manual. Thanks for any help!

 

[mrrsm]

Welcome to GMT Nation...

This On Topic Response comes from "TV"... and IIANM ... it was originally suggested as the resolution to this bizarre incident in another GMT Nation Thread by @xavierny25 a few years ago... :>)

noise from B pillar behind driver

In my 04 Trailblazer, I get an occasional noise like a stepper motor or some other electrical noise coming from what looks like a small speaker (tweeter) size grill in the B pillar. It is usually on start-up and will continue even after the key is turned off and removed. Anybody know what this is?

www.trailvoy.com

 

[GreenBravada]

I think I figured this out:

ACDelco® 15-50103 - GM Original Equipment™ Cabin Air Temperature Sensor

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[mrrsm]

It is always NICE when the OP (Original Poster) can Rubber Stamp their issue with THIS after they figured things out right away:



Nice Follow Up...WITH Good Information... Brother... YOU ... are gonna FIT RIGHT IN ... around HERE! :>)

 

[GreenBravada]

Welcome to GMT Nation...

This On Topic Response comes from "TV"...

noise from B pillar behind driver

In my 04 Trailblazer, I get an occasional noise like a stepper motor or some other electrical noise coming from what looks like a small speaker (tweeter) size grill in the B pillar. It is usually on start-up and will continue even after the key is turned off and removed. Anybody know what this is?

www.trailvoy.com

Thanks, MRRSM. I managed to figure out what it was. Never would have imagined the air temp sensor would be in the B pillar!
;-)