It is an electric fuel pump and does not require priming.Cranking the engine should start the pump to run. The computer shuts it off after 3 seconds if the engine has not started.
The 2010 Chevrolet Silverado-3500HD runs on flex-fuel (FFV).
The 2012 Chevrolet Silverado-3500HD runs on flex-fuel (FFV).
The 2010 Chevrolet Silverado-2500HD runs on flex-fuel (FFV).
The 2014 Chevrolet Silverado-1500 runs on flex-fuel (FFV).
The 2013 Chevrolet Silverado-3500HD runs on flex-fuel (unleaded/E85).
The 2014 Chevrolet Silverado-3500HD runs on flex-fuel (unleaded/E85).
The 2012 Chevrolet Silverado-2500HD runs on flex-fuel (unleaded/E85).
The 2013 Chevrolet Silverado-2500HD runs on flex-fuel (unleaded/E85).
The 2014 Chevrolet Silverado-2500HD runs on flex-fuel (unleaded/E85).
The 2010 Chevrolet Silverado-1500-Hybrid runs on flex-fuel (unleaded/E85).
It is in the fuel tank.
It is inside of the fuel tank.