Where is the cabin air filter located on an 2004 Dodge Ram 1500?
The cabin air filter is located on the passenger side of the
cowl. After opening the hood, remove the windshield wipers and the
black covering ( 2 small T-30 screws, and a few body grommets).
After you remove the cowl there will be a grey accordion looking
filter in the cowl, remove that and replace with the new