Silverado 2500 4WD V8-6.6L DSL Turbo (2010)
Fuel Pressure: Specifications
During engine cranking, the pressure should be at least 10 MPa. With the engine running at idle the pressure should be close to the Desired Fuel Rail
Pressure. As the engine speed increase, the Desired Fuel Rail Pressure and the Actual Fuel Rail Pressure should be within 2 MPa of each other.