2004 Silverado 2500HD 4x4 rattle noise from behind dash on driver's side.

[CheemsK1500]

On my '04 Silverado 2500 I keep hearing a rattle noise at random intervals. The steering shaft and column bushing is new and still tight. I also changed out the brake pedal pivot bushing, since I thought that it could be causing the noise, but that did not stop the noise either. I cannot not find anything loose behind the dash. Does anyone have an idea of what this noise could be? Thanks.

 

[MarineOne]

Do you have bose stereo?
I've had the tweeter in a piller fall down before.

Also the fuse blocks sometimes come loose

Make sure e brake pedal is all the way up

 

[Keith Seymore]

I presently have the dash top pad removed from my 2004 2500 HD Duramax, if you want me to look for anything specific or take some pictures.

(Mine doesn't rattle - but the HVAC is wonky).

K

 

[RaisedK5]

I have a 2005 2500. And occasionally have that jiggle, clunky sound. Never been able to find what does it. All the research I did on the interwebs pointed me at nothing. Some guys spent weeks insulating things, tightening things, padding things. All for not. I guess it's like the rear exhaust manifold bolts on these trucks snapping all the time. Just something you have to live with.

 

[CheemsK1500]

Do you have bose stereo?
I've had the tweeter in a piller fall down before.

Also the fuse blocks sometimes come loose

Make sure e brake pedal is all the way up

Mine has the standard speaker setup with the non-speaker pillars. The fuse panel seems secured. The parking brake linkage could be a possible suspect.

 

[CheemsK1500]

I presently have the dash top pad removed from my 2004 2500 HD Duramax, if you want me to look for anything specific or take some pictures.

(Mine doesn't rattle - but the HVAC is wonky).

K

I'm not entirely sure what I am looking for, but if you see anything that looks like a potential rattle point, maybe I can look for it on mine. Seeing that your HVAC is acting up scares me, because I just got mine to start acting right.

 

[Keith Seymore]

I'm not entirely sure what I am looking for, but if you see anything that looks like a potential rattle point, maybe I can look for it on mine. Seeing that your HVAC is acting up scares me, because I just got mine to start acting right.

Are you ok to discuss here what yours was doing and what you did to fix it?

K

 

[Bextreme04]

I guess it's like the rear exhaust manifold bolts on these trucks snapping all the time. Just something you have to live with.

I had some snapped on my 2011 Suburban 5.3L when I needed to get the exhaust manifold off to replace it after the studs got destroyed on the outlet. I replaced them with ICT Billet bolts and torqued them to spec and haven't had a single issue with them since. Got them on amazon for the same price listed on the ICT billet website. That was in August 2020 and I have almost 60k miles on them since then with no breakages.
https://www.ictbillet.com/usa-bolt-...fold-header-flange-bolts-ls1-lt1-ls3-lq4.html

 

[CheemsK1500]

Are you ok to discuss here what yours was doing and what you did to fix it?

K

Mine would randomly stop working entirely at random times. It seemed to kid more reliable after I changed the blend door actuator, though that was not done in response to the random shutoff problem. I honestly have no idea if there is any correlation, since the blend door worked fine during the time the random shutoffs were more frequent.