Ford Transit 2002 Owner's Manual page 1345

with these components. Always install blanking plugs to any open orifices or lines.
Always carry out the cleaning process before carrying out any repairs to the fuel
system components to prevent foreign material ingress to the components.
A2: CHECK WHERE AIR IS ENTERING THE SYSTEM
A3: CHECK THE FUEL LEVEL SENSOR FOR AIR INGRESS
Disconnect the fuel filter fuel supply line quick
1
release coupling.
REFER to: Quick Release Coupling
System - General Information, General Procedures).
Using a suitable piece of clear plastic pipe,
2
manufacture and install a pipe between the fuel filter
fuel supply line and the fuel filter.
Start the engine, wait a few minutes and observe the
3
clear plastic pipe for signs of air ingress.
Are any signs of air present in the clear plastic pipe?
Yes
GO to A2.
No
For additional diagnostics,
REFER to: Fuel Charging and Controls - 75 PS/90
PS/110 PS, Vehicles Built From: 08/2006
Fuel Charging and Controls - 1.8L Duratorq-TDCi
(Lynx) Diesel/1.8L Duratorq-TDDi (Lynx) Diesel,
Diagnosis and Testing).
Using suitable clean engine oil, apply the oil to each
1
of the fuel supply line and fuel return line
connections, unions and joints in turn and observe
the clear plastic pipe for visible signs of air after each
oil application.
Did the amount of air in the clear plastic fuel pipe
decrease when any of the connectors, unions or joints
were oiled?
Yes
INSTALL a new fuel pipe(s) as necessary. Test the
system for normal operation.
No
GO to A3.
Drain the fuel tank.
1
REFER to: Fuel Tank Draining
- General Information, General Procedures).
Fill the fuel tank with 10 liters of diesel.
2
Disconnect the fuel filter to fuel pump fuel supply
3
line quick release coupling.
REFER to: Quick Release Coupling
System - General Information, General Procedures).
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(310-00A Fuel
(303-04B
(310-00A Fuel System
(310-00A Fuel