Does anyone know if a dirty hood insulator could contribute to cabin smells? It's potentially seen a lot of different chemicals over the years, including krown.
My hood seals are really wavy and probably not sealing anymore, the thinking here is that smelly air from the engine bay (maybe from the hood insulator releasing odours as it heats up?) is escaping and then getting sucked into the cowl. It's certainly worse when the truck isn't moving.
Incidentally if anyone has part numbers for the front and rear hood seals it would be greatly appreciated, but maybe that should be a new post.