Attention: TDR Forum Junkies 
I am presently about one/half way thru a 3,000 mile RV trip. My 2007. 5, 3500 has been running very well... . but...
During high and gusty head winds there is an occasional (about every 3 to 8 seconds) and random thumping noise which appears to come from the forward edge of the dash. I checked under the dash, but no wind gets in that area any way. Then checked under the hood. The trim fiber board liner of the front of the dash area (but in the engine compartment) was loose. I bought new trim plugs and some glue and glued the darn thing down. No help. I now suspect the large under-hood fiber board. It sort of hangs down from the hood. I am not willing to drill more holes in the hood to try a blind luck fix. The thumping is fairly loud, as if hammer handle was being popped against a plastic or fiber area.
Has anyone else had such a problem?
Bill S
During high and gusty head winds there is an occasional (about every 3 to 8 seconds) and random thumping noise which appears to come from the forward edge of the dash. I checked under the dash, but no wind gets in that area any way. Then checked under the hood. The trim fiber board liner of the front of the dash area (but in the engine compartment) was loose. I bought new trim plugs and some glue and glued the darn thing down. No help. I now suspect the large under-hood fiber board. It sort of hangs down from the hood. I am not willing to drill more holes in the hood to try a blind luck fix. The thumping is fairly loud, as if hammer handle was being popped against a plastic or fiber area.
Has anyone else had such a problem?
Bill S
