* Repair Manuals: A Haynes or Chilton repair manual specifically for a 1993 Mercury Cougar will contain detailed engine diagrams. These manuals are available at most auto parts stores and online retailers.
* Online Automotive Parts Websites: Websites like AutoZone, Advance Auto Parts, and Napa Auto Parts often have diagrams available when you search for specific parts for your Cougar's engine. You might need to enter your VIN or engine code for accurate results.
* Factory Service Manuals: These are the most comprehensive manuals, but they're usually more expensive and harder to find than Haynes or Chilton manuals. You might find used copies online (eBay, etc.)
* Online Forums: Cougar enthusiast forums (search for "1993 Mercury Cougar forum") might have members who have scanned diagrams or can point you towards resources.
Important Note: When searching, specify the *engine code* of your Cougar (found on a sticker under the hood or in your owner's manual). The 1993 Cougar came with several different engines, and the diagram will vary.
