Ford Focus RS 2016 Technical Service Training page 67

Lesson 3 – Powertrain
1 Fuel tank
2 Electric pump 1
3 Pressure control valve
4 Electric pump 2
5 Filter
6 One-way valve
Electric pump 2 (primary pump) drives two suction jet
pumps (passive). One of the suction jet pumps fills the
reservoir with fuel from the fuel tank, which holds fuel
to supply the electric fuel pumps.
The other suction jet pump draws in the fuel from the
fuel level sender unit via a suction pipe. Electric pump
1 (secondary pump) has a cooling flow opening for a
low fuel requirement.
E224104
1 Fuel pump relays
2 FPDM (fuel pump driver module)
3 PCM
4 Fuel level sensor 2 (fuel level sender unit)
Service Training
1
2
7
8
9
7 Two suction jet pumps
8 Reservoir
9 Line connection to the passive side
10 Screen
11 Valve
The two electric pumps supply the required fuel to the
high-pressure pump via a pressure control valve. There
is a pre-filter in the reservoir and a main filter outside
the fuel tank.
The pre-filter is not subject to change intervals. The
valve on the underside of the reservoir ensures sufficient
filling of the reservoir.
The valve opens when it is surrounded by sufficient fuel
in the fuel tank. It closes if there is just a residual
amount of fuel in the tank. This means that no air can
form in the reservoir and the lines remain filled.
3
5
6
5 High-pressure fuel pump
6 Low-pressure fuel system sensor
7 Fuel level sensor 1 (fuel pump and sender unit)
Fuel System
4
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