* Your Owner's Manual: This is the first place to check. While it might not have a dedicated diagram, it *should* have routing information for the serpentine belt (most likely what you're looking for). It might show the general path or at least list the components the belt goes around.
* Repair Manuals: A Haynes or Chilton repair manual specific to a 2002 Chevy Venture will contain detailed diagrams showing the serpentine belt routing and often includes tensioner information. These manuals are readily available online or at auto parts stores.
* Online Resources: Websites like AutoZone, Advance Auto Parts, and NAPA Auto Parts often have online diagrams or parts lookups. You can search by your vehicle's year, make, and model and often find diagrams showing belt routing when viewing the serpentine belt as a part.
* Online Forums: Searching forums dedicated to Chevy Ventures or General Motors vehicles (e.g., on sites like ChevyTalk or GM-Trucks.com) may uncover user-submitted photos or diagrams of belt routing.
Important Note: When working with belts, it's crucial to understand the tensioner system. Improper tensioning can lead to belt slippage or premature failure. If you're unsure about any aspect of the process, it's best to consult a professional mechanic. Incorrect belt routing can also cause damage to your engine.