Help trying to figure out chirping noise

[Duke Silver]

Hey everybody,
I got my 2005 suburban back in March had a fair amount of issues with it slowly been trying to fix those issues but this one baffles me and I cannot figure it out so I was hoping maybe somebody could help me diagnose this.

The issue is when I first got it maybe a week or two after owning it I noticed that there would be a chirping noise coming from around the driver side odometer area. Sometimes it sounds like it's coming from the left then the middle and somewhat to the right. Sometimes I'll get it when I let off of the break although it'll sound a little bit more different almost like it's a chirp that's gargling and dying. The last way I sometimes can get the noise as well is when I go to turn the car off and pull the key out of the ignition it kind of makes the same noise similar to what it does when I let off the brake.

Attach the link below to try to send you over to the videos that I managed to get of the noise both of just sitting there idle and it making it and then as I pull the key out I got lucky and it made the noise when I was recording it.

https://imgur.com/a/K1uY8kN

 

[Joseph Garcia]

That's an interesting issue, but I don't have a suggestion off the top. @Doubeleive @OR VietVet @swathdiver @randeez

 

[Doubeleive]

Hey everybody,
I got my 2005 suburban back in March had a fair amount of issues with it slowly been trying to fix those issues but this one baffles me and I cannot figure it out so I was hoping maybe somebody could help me diagnose this.

The issue is when I first got it maybe a week or two after owning it I noticed that there would be a chirping noise coming from around the driver side odometer area. Sometimes it sounds like it's coming from the left then the middle and somewhat to the right. Sometimes I'll get it when I let off of the break although it'll sound a little bit more different almost like it's a chirp that's gargling and dying. The last way I sometimes can get the noise as well is when I go to turn the car off and pull the key out of the ignition it kind of makes the same noise similar to what it does when I let off the brake.

Attach the link below to try to send you over to the videos that I managed to get of the noise both of just sitting there idle and it making it and then as I pull the key out I got lucky and it made the noise when I was recording it.

https://imgur.com/a/K1uY8kN

pull the hvac fuse out and see if it still does it

 

[OR VietVet]

Does it do it with or without the brake applied? same question but with engine running? Engine off?

 

[Duke Silver]

pull the hvac fuse out and see if it still does it

I'll give that to go tomorrow when I have some time.

 

[Duke Silver]

Does it do it with or without the brake applied? same question but with engine running? Engine off?

It does it with or without the brake applied It just seems like the brake can also affect the noise coming on as well. When I first got the car and I noticed it and at one point I pulled into a parking lot turned the car off Just had the radio running and it would still make the noise there was no consistency between intervals of it happening though.

 

[Doubeleive]

there really is not many things that will make that noise, main culprit is a blend door actuator not reading the position properly so it is always trying to adjust but cannot find the commanded spot so it moves back-n-forth a tiny bit chirping. might go fast or slow or work sometimes and not others. sometimes adjust the heat/cold, floor/forward/defrost to a different setting makes it stop but not always and it may even do it with just the key on.
so if pulling the fuse makes the noise go away then you have a lead point to investigate further.

 

[OR VietVet]

It does it with or without the brake applied It just seems like the brake can also affect the noise coming on as well. When I first got the car and I noticed it and at one point I pulled into a parking lot turned the car off Just had the radio running and it would still make the noise there was no consistency between intervals of it happening though.

You had the key off and out of ignition, or even in it, and it still makes the noise? Yea, like @Doubeleive said, something is still powered up and making that noise. I think it is an actuator, too.

 

[Doubeleive]

You had the key off and out of ignition, or even in it, and it still makes the noise? Yea, like @Doubeleive said, something is still powered up and making that noise. I think it is an actuator, too.

i think the 05 we had would do it even with the key off for a minute or so until it went to sleep, super annoying....

 

[OR VietVet]

Yea, some of the modules will "keep alive" for different amounts of times after shut off and key removal.

 

[Joseph Garcia]

Thank you Guys for providing some input and suggestions for the OP. Much appreciated.

 

[Duke Silver]

there really is not many things that will make that noise, main culprit is a blend door actuator not reading the position properly so it is always trying to adjust but cannot find the commanded spot so it moves back-n-forth a tiny bit chirping. might go fast or slow or work sometimes and not others. sometimes adjust the heat/cold, floor/forward/defrost to a different setting makes it stop but not always and it may even do it with just the key on.
so if pulling the fuse makes the noise go away then you have a lead point to investigate further.

One thing I realized This past summer even though I had both temperatures set to 60 for the AC I was wondering why felt like I was getting a hotspot in the car the sun was shining on that side and then all of a sudden I realized hot air was blowing out of the passenger side. I had to pull over turn the car off I let it sit for a minute and then I turned it back on and the passenger side was cold again but I haven't had that problem since. If you're saying it's something with the blend door actuator I'm assuming that could very well have been a symptom that there is something wrong with it as well.

 

[Duke Silver]

You had the key off and out of ignition, or even in it, and it still makes the noise? Yea, like @Doubeleive said, something is still powered up and making that noise. I think it is an actuator, too.

I had the key off and out of the ignition, when it was still making the noise I took it out of the ignition, but I still had that auxiliary power that stays on until you open one of the doors. I cannot recall if the noise was still there after everything powered off. I want to say that I did open the door and I was still getting the noise but when this initially happened it was back in March so I can't really recall and I haven't tried to recreate that since I posted about this because it started back up again.

 

[Duke Silver]

i think the 05 we had would do it even with the key off for a minute or so until it went to sleep, super annoying....

i think the 05 we had would do it even with the key off for a minute or so until it went to sleep, super annoying....

Good to know. Thanks for the info. So basically what Doubeleive said is probably corporate more than likely is. Looks like I'll be looking into buying a replacement part hopefully it's not that complicated to get to it and replace it. Haven't looked into it just came on to the forum now to see if anybody else provided help. Wanted to say thank you to everybody who did provide me with some information on tracking down that noise because it can become irritating as all hell when it really starts going especially while I'm driving. When I get around to it if it goes away I will be sure to post in here that that was the fix.

 

[bobsburban]

Here's an out-of-the-box idea - check your parking brake pads. I had a chirping/clicking noise coming from down under - chirping when the windows were down, clicking with the windows up. Turned out my parking brake pads had completely disintegrated, coming off the backing metal. One side fell out as soon as we pulled the drum.New parking brake pads and everything is now fine.

Just my limited experience...

 

[tom3]

Grandson has an 04 Silverado that makes a noise similar to this I think. Might be a similar system as yours. We found that we could move the heat control just a bit toward the warm setting and it would quiet down. Probably not your noise but easy to try it.

 

[mountie]

I can't hear it.... volume up - no sound....

 

[Fless]

I can't hear it.... volume up - no sound....

Have to unmute

 

[mountie]

Have to unmute

View attachment 440471

Thanks..... ( usually, raising volume , un mutes ).... I barely hear the 'chirp'. Not really enough to diagnose.....

 

[Duke Silver]

Here's an out-of-the-box idea - check your parking brake pads. I had a chirping/clicking noise coming from down under - chirping when the windows were down, clicking with the windows up. Turned out my parking brake pads had completely disintegrated, coming off the backing metal. One side fell out as soon as we pulled the drum.New parking brake pads and everything is now fine.

Just my limited experience...

It's definitely not that. I know my brakes are good Just change the rear rotors and pads a few months ago and I checked the front while I was doing it and they were still good. I can get that noise to happen as was mentioned previously when I'm sitting with or without the key in the ignition when it's running off the auxiliary power before you open the doors.