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Home >> GMC >> 2002 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.5L >> Description and Operation >> Fuel System Description >> Electronic Fuel Injection Pump

Electronic Fuel Injection Pump

Fig 1: Electronic Fuel Injection Pump
G01599640Courtesy of GENERAL MOTORS CORP.

The injection pump is a high pressure rotary type that is controlled by the PCM. The injection pump meters, pressurizes, and distributes fuel to the eight injector nozzles by way of eight high pressure lines. An outlet port in the injection pump allows the fuel to enter the fuel return system and then travel back to the fuel tank.