Silverado 2500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
Diesel MFI Pump: Description and Operation
Fuel Injection Pump
FUEL INJECTION PUMP
Fuel Injection Pump
The fuel injection pump is a mechanical high pressure pump. The fuel injection pump is located below the intake manifold. Fuel is pumped from the fuel
tank to the fuel rails at a specified pressure. Fuel pressure is regulated by a valve on the inlet of the fuel pump, controlled by the ECM. Excess fuel from
the fuel injection pump returns to the fuel tank through the fuel return pipe and a fuel cooler.
