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Home >> Ford >> 2017 >> Transit-350 Base, Van Cargo Extended, 3.5L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 30 (Engine Controls - Description & Operation (Diesel)) >> Fuel System >> Low Pressure Fuel System - F-650/F-750

Low Pressure Fuel System - F-650/F-750

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Fuel is pumped from the fuel tank to the primary fuel filter by the electric fuel pump. Pressurized and filtered, approximately 379 kPa (55 psi) during engine idle, the fuel is pumped through the fuel supply line to the secondary fuel filter (the secondary fuel filter housing is located on the front left side of the engine). The filtered fuel leaves the secondary fuel filter and flows to the high pressure pump. Fuel bled off by the high pressure pump and fuel rail pass through the fuel cooler before returning to the fuel conditioning module. Fuel bled off by the fuel injectors is recycled to the inlet side of the secondary fuel filter.

Low Pressure Fuel System (F-650/F-750) 

Fig 1: Low Pressure Fuel System Diagram
G09957338Courtesy of FORD MOTOR CO.
Item Number Description
1 - Fuel Tank
2 - Fuel Conditioning Module
3 - Secondary Fuel Filter
4 - Fuel Pressure And Temperature Sensor
5 - High Pressure Pump
6 - High Pressure Pump Bypass
7 - Fuel Rail
8 - Fuel Cooler