Technician A says that the fuel filter used in the Cummins HPI-TP fuel system can either be under pressure or suction, depending on when the engine was manufactured. Technician B says that fuel movement through the fuel subsystem in an ISX engine is created by a gear type fuel transfer pump. Who is correct?

Question

Quizplus · Accepted Answer

Both statements are correct. The fuel filter in the Cummins HPI-TP fuel system can indeed be under pressure or suction based on the manufacturing period, and in an ISX engine, fuel movement through the fuel subsystem is facilitated by a gear type fuel transfer pump.

Technician a Says That the Fuel Filter Used in the Cummins