1. Online Resources:
* Helms Automotive: Helms is a reputable publisher of factory service manuals. You can often find them online through sites like eBay or Amazon, though they might be quite expensive.
* Oldsmobile Club of America: They have a library with resources including wiring diagrams. While focused on Oldsmobile, they may have helpful information for other General Motors vehicles from the same era.
* AutoZone: AutoZone offers free wiring diagrams for many vehicles, including some older models. However, their database may not be comprehensive enough to cover your specific year and model.
* AllData DIY: AllData is a subscription-based service that offers access to detailed wiring diagrams and repair information for various car makes and models.
* Chilton's: Chilton offers repair manuals, including electrical diagrams, for many vehicles. You can find these through their website or online retailers.
2. Local Resources:
* Local Mechanic: A local mechanic who specializes in classic cars may have access to wiring diagrams or know where you can find them.
* Cadillac Club: Joining a local Cadillac club could connect you with members who may have the information you need.
3. Additional Tips:
* Look for a "factory service manual" or "repair manual" specifically for your 1973 Cadillac Eldorado. These often contain detailed wiring diagrams.
* Check the VIN: The VIN of your car is essential for finding the correct information.
* Be aware of compatibility: Some wiring diagrams may be specific to certain engine or transmission configurations. Make sure to verify that the diagram you find is compatible with your vehicle's specific setup.
Remember, obtaining the correct and up-to-date wiring diagram is crucial for safe and successful work on your car. Don't hesitate to consult multiple sources to ensure you have the most accurate information.