Where do you find the fuel pressure regulator on a 1997 Chevy Cheyenne 3500?

On a 1997 Chevy Cheyenne 3500, the fuel pressure regulator is integrated into the fuel rail. You won't find a separate, standalone component like on some older vehicles. It's located on the fuel rail itself, typically near the intake manifold. You'll need to look along the top of the engine, tracing the fuel lines to locate the fuel rail. The regulator is part of that assembly.