1. Factory Service Manual: This is the best source. A factory service manual (FSM) will have incredibly detailed wiring diagrams. You can try searching online marketplaces like eBay or Amazon for a "1979 Dodge Ramcharger service manual." Specify the engine size (e.g., 318, 360) and any options (e.g., automatic transmission, air conditioning) as these can affect the wiring.
2. Online Forums and Communities: Dedicated Dodge or Mopar forums (like those on sites like DodgeForum.com or similar) are excellent resources. Post a request, including as much detail about your Ramcharger (engine, options, etc.) as possible. Someone with experience might have scanned copies or know where to find one.
3. Haynes or Chilton Repair Manuals: These are less detailed than FSMs, but they *may* include simplified wiring diagrams. Check your local auto parts store or online retailers. Again, be aware that the diagrams may be generalized and not perfectly match your specific options.
4. Local Auto Parts Store: Some auto parts stores might have access to wiring diagrams through their computer systems, although this is becoming less common. It's worth a shot to ask.
5. Specialized Automotive Libraries or Archives: Some universities or vocational schools with automotive programs might have a collection of older repair manuals.
Important Considerations:
* Year and Options: The wiring will vary slightly depending on the year, engine, and options of your Ramcharger. Be as specific as possible when searching.
* Diagram Complexity: Wiring diagrams can be quite complex. Take your time and study them carefully.
* Safety First: Working with automotive electrical systems involves some risk. Always disconnect the negative battery terminal before working on the wiring, and be mindful of potential hazards.
Finding a complete, high-quality wiring diagram for a 1979 Ramcharger will likely require some searching and persistence. The factory service manual remains your best bet if you can locate one.
