Walnut somewhere in climate ducting

[Sleddogg]

I was hearing a terrible rattle behind the infotainment screen, to the point that I made an appointment to have it checked out. This after emptying everything from the glove box and all cubby spots, and checking under the hood by the firewall. 25 minutes after that phone call, I had to slam on the brakes to avoid hitting a deer and now the sound is in a different locale behind the dash and only evident on hard braking. Much less constant or even detectable. Does anyone know where the climate air intake is under the hood? I canceled the appointment thinking I should be able to remove the nut myself.

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[Sagebrush]

Does anyone know where the climate air intake is under the hood?

I don't, but I would pull the cabin filter and see if it's not below that.

 

[Sleddogg]

I don't, but I would pull the cabin filter and see if it's not below that.

I did that already and , while the cover was poorly installed the last time the dealer performed maintenance, the fan is directly below and the filter is dirty side up with not much for access above it which is the direction I assume the offending but resides.

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