If your Ranger *does* have one (some might have been added as an aftermarket installation), it's likely to be found somewhere behind the glove box, possibly requiring partial disassembly to access. However, without knowing if it has a factory or aftermarket filter installed, a precise location can't be given.
To determine if yours has one:
1. Check your owner's manual: This is the first and best place to look. It should specify the location and replacement instructions if a cabin air filter is part of your vehicle's design.
2. Visual Inspection (behind glove box): Carefully remove or partially remove the glove box to see if there's anything resembling a filter housing in that area.
3. Consult a Ford repair manual specific to your 2001 Ranger: These manuals provide detailed diagrams and instructions.
If you can't find a filter, it's highly probable your Ranger doesn't have one from the factory. You would need to have one professionally installed if you desire that feature.
