Buzzing Noise

[mwilson62000]

My 03 Tahoe originally had the factory multiple CD changer radio. Yes. You feed one disc at a time into the single slot. It holds 6 CDs when in CD mode you could hit a preset #1-6 and it would play that number CD. Looks like this:

2002-06 GM GMC CHEVY OEM Factory BOSE Stereo AM/FM Radio 6 Disc CD Changer RADIO | eBay

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[mwilson62000]

But back to your issue, if it happens regularly, maybe take the black cover off under the glove box and listen down there. I know one of the actuators is right there in plain view. With the black cover off, you may be able to hear it more clearly if in fact it is the actuator.

 

[gooffeyguy]

That actuator that is just to the right of the trans tunnel is the blend door actuator. I've replaced it in the past on the 2001 and it's rather easy. The mode actuator is higher up and more center.

I'd just unplug the connector going to that blend actuator and see if it will still make the noise. If it doesn't, then that's the problem. If it does, then I'd say it's the radio cd mechanism.

 

[iamdub]

History lesson for the younger kids: People used to wear gloves and needed a box in their vehicles to keep them in. Hence the name glove box... If you looked today, I doubt you would find one pair of gloves anywhere!

It's a "love glove" box.

 

[iamdub]

Source is definitely in the dash ahead of the console.

Radio unit is:
UC6 RADIO - AM/FM STEREO, SEEK/SCAN, RDS, MULTIPLE COMPACT DISC, AUTO TONE CONTROL, CLOCK, ETR

I have no idea where the multi-disc changer is. Do they load into the one slot on the head unit or is there a cassette box in the dash?

It has the Bose with touch screen Nav display... I have not seen how more than a single disc could be loaded anyway.

Remove the fuse for the radio for a while?

 

[rockola1971]

My 03 Tahoe originally had the factory multiple CD changer radio. Yes. You feed one disc at a time into the single slot. It holds 6 CDs when in CD mode you could hit a preset #1-6 and it would play that number CD. Looks like this:

2002-06 GM GMC CHEVY OEM Factory BOSE Stereo AM/FM Radio 6 Disc CD Changer RADIO | eBay

Find many great new & used options and get the best deals for 2002-06 GM GMC CHEVY OEM Factory BOSE Stereo AM/FM Radio 6 Disc CD Changer RADIO at the best online prices at eBay! Free shipping for many products!

www.ebay.com

I have the same setup i both of my 03 Tahoe LT's. My 05 Denali is the same except it has the touchscreen too.

That annoying sound sounds like either a relay chattering or a stripped climate control actuator. Either that or you got the wrong answer on a 70/80's TV game show.

 

[MassHoe04]

Remove the fuse for the radio for a while?

I'll try that.

 

[MassHoe04]

I'll try that.

I pulled the radio and the Radio Amp. fuses and it still made that noise. It'll be a little while before I get to it, but it looks more like the HVAC actuator. It sounds a little lower than the radio head unit, so I am hopeful it is the lower actuator. That would be nice if it was...

 

[Doubeleive]

I pulled the radio and the Radio Amp. fuses and it still made that noise. It'll be a little while before I get to it, but it looks more like the HVAC actuator. It sounds a little lower than the radio head unit, so I am hopeful it is the lower actuator. That would be nice if it was...

you can pull the hvac fuse as well to see if the noise goes away, when you put the fuse back in and turn the key on it will do a self calibration

 

[iamdub]

I pulled the radio and the Radio Amp. fuses and it still made that noise. It'll be a little while before I get to it, but it looks more like the HVAC actuator. It sounds a little lower than the radio head unit, so I am hopeful it is the lower actuator. That would be nice if it was...

Process of elimination!

 

[MassHoe04]

you can pull the hvac fuse as well to see if the noise goes away, when you put the fuse back in and turn the key on it will do a self calibration

I'll give that a try too. When I was playing with my Tech 2 a couple weeks ago, I did get into the menu that does recalibration. That recalibration had no effect, but I'll see if pulling the fuse confirms the source.

 

[Rocket Man]

I’m betting it’s an actuator. My 02 made a noise similar to that only not as loud. They go through a reset procedure every time the engine is started even if the system is off I believe.

 

[SheniqueTheDenali]

This sounds like the same problem a friend of mine had with her 2006 Impala. Hers made the same sound and it was the blend door.