Crazy truck noise after storm (video)

[Beefy]

Hello,

Driving into work last night there was a huge storm. All is well. Work for 12 hours. Go to drive home and I hear a clunk under the dash (right in the middle between the seats). Don't think too much of it until I get home and turn the truck off. This clunking sound begins AFTER I turn the truck off.

So, I turned it back on and began playing with the fan speeds, etc. That's when I started taking a video. Check out the video to hear the noise. At the end, I turn the truck off again and it continues for a short time.

Anyone have any idea what this is?

If it matters, it's a 2009 QCSB Hemi with no mods.

Thanks.

 

[Beefy]

Well, I guess I should have used Google first. Right after posting this, I found the below video on YouTube of the exact same problem. Haha!

2009 Dodge Ram 1500 blend door knocking noise problem diagnosed - YouTube

 

[Sticks2010]

Blend door actuators, replaced both then I personally had to disconnect battery for reset. You'd have to remove everything on front center dash to access actuators.