* Repair Manual: A factory service manual (FSM) or a Haynes/Chilton repair manual for your specific year and model will be your best source. These manuals usually have detailed diagrams and explanations of the vacuum system. You can often find these online through retailers like Amazon or eBay, or at auto parts stores.
* Online Forums: Search dedicated automotive forums like Dodge forums or general car repair forums. Specify your exact year, model, and engine (e.g., "2000 Dodge Ram 1500 Van, 5.2L V8, AC vacuum diagram"). Someone might have posted a diagram or have a link to one.
* Dealership: Your local Dodge dealership might be able to access the diagram through their service information systems, but they may charge a fee.
* Auto Parts Stores: Some larger auto parts stores (like AutoZone, Advance Auto Parts) might have access to online repair information through their computer systems. It's worth checking with them.
Important Note: Vacuum diagrams can be complex. If you're not comfortable working with vacuum lines, it's best to leave the diagnosis and repair to a qualified mechanic. Incorrectly dealing with vacuum lines can lead to further problems with your AC system or even damage to your engine.
