To find out if your truck has one and where it's located:
1. Consult your owner's manual: This is the most reliable source. The manual will explicitly state if your truck has a cabin air filter and provide instructions on its location and replacement.
2. Check the glove box: In many vehicles, the cabin air filter is located behind the glove box. You may need to remove the glove box or a portion of it to access the filter.
3. Look under the dash: Sometimes the filter is accessible from under the dashboard, near the passenger side. This often requires more disassembly.
4. Examine the passenger side kick panel: Another possible location is behind the passenger side kick panel near the floor.
5. Use online resources: Search online for "[Your Dodge Pickup Model Year] cabin air filter location." Many forums and websites dedicated to Dodge trucks have detailed instructions and pictures.
If you can't find a filter, your truck may not have one. Older vehicles often didn't include cabin air filters as standard equipment. If this is the case, you could consider having one professionally installed.