1. Consult a repair manual specific to your 1996 Firebird V6: A Haynes or Chilton manual will have diagrams showing the exact location of all components, including the purge solenoid.
2. Use an online parts diagram: Many auto parts websites (like AutoZone, Advance Auto Parts, etc.) allow you to look up diagrams for your specific vehicle's year, make, and model. Search for parts related to the EVAP system (evaporative emission control) to find it.
3. Look carefully near the intake manifold and fuel rail: Start by looking in this general area. The purge solenoid is usually a small canister-like device with electrical connectors.
Important Note: Before attempting any repairs or maintenance, disconnect the negative battery cable to prevent electrical shorts. Also, be careful not to damage any hoses or wiring while searching for the solenoid.