Where is the fuel pressure test port on a 3.8l Grand Caravan 2006?

On a 2006 Grand Caravan with a 3.8L engine, the fuel pressure test port is located on the fuel rail, which is situated on top of the engine. You'll find a small Schrader valve, similar to a tire valve, that can be used to check the fuel pressure. Make sure to relieve the fuel system pressure before attempting to access this port for safety.