[GM-power]

The fuel pump module is the fuel pump assembly itself. Your referring to an issue with the fuel pump power control module? Are you running every module from the silverado? When you start the truck what exactly is the truck doing? Does it crank over? If you have power at the pump when needed it should be coming on. Unless you have a communication issue, can you go in with a scan tool and pressurize the system? Sorry for the integration lol just trying to understand the setup better.