Here's how to find it:
1. Consult your owner's manual: This is the most reliable source for locating components within your vehicle.
2. Look for online resources: Search for "1997 Ford E350 blower motor resistor location" on websites like Ford's website, repair manuals, or automotive forums.
3. Check under the dashboard: The resistor is usually located behind the dashboard, near the blower motor. You may need to remove some panels to access it.
4. Look at the wiring diagram: If you have access to a wiring diagram, it will show the location of the resistor.
Remember: The location may vary depending on the specific model and year of your vehicle.