* Repair Manuals: A Haynes or Chilton repair manual for your specific year and engine size (4.0L V6 is common, but there may have been others) will almost certainly include a detailed vacuum hose diagram. These manuals are widely available online and at auto parts stores.
* Online Forums: Websites and forums dedicated to Ford Explorers (like Explorerforum.com) are valuable resources. Search for your specific year, engine, and "vacuum diagram" or "vacuum line diagram." Someone might have already posted one, or you can ask for assistance.
* Auto Parts Store Websites: Websites of major auto parts retailers (AutoZone, Advance Auto Parts, etc.) sometimes have diagrams available when you search for parts related to the vacuum system. However, these are often less complete than those in a repair manual.
* Your Local Mechanic: A trusted mechanic might have access to diagrams through their professional resources or software. They may even be able to quickly identify the lines if you're having a problem.
Important Note: When working with the vacuum system, be extremely careful. Incorrectly routing vacuum lines can lead to poor engine performance, or even damage to components. If you are not comfortable with auto repair, it's best to consult a professional mechanic.
