2018 3500 started to develop an odd smell, almost like an old shag carpet, several days after some extreme rain here in Hawaii.

I discovered the rear floor was wet.

The dealership will be glad to look at it in February, so I will have to tackle this issue myself.

It is coming from the rear vents on the back of the cab.

What do we know about those things?

Can they be replaced without removing the bed?

Has anyone else had this issue?

I searched and found a similar topic, but it was about dust accumulation.

Any help is greatly appreciated.


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