Ford Transit 2002 Owner's Manual page 888

B2: CHECK THE FUEL SYSTEM FOR AIR INGRESS
B3: CHECK THE FUEL PUMP FUEL RETURN PRESSURE
NOTE: Before this test can be carried out, the latest calibration must be programed into
the PCM and IDM if applicable.
Using WDS, select the digital multimeter (DMM)
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function from the toolbox menu. Select the
pressure vacuum transducer (PVT) function and
configure the DMM to display pressure/vacuum.
Start the engine.
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Allow the engine to idle for at least one minute.
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Make a note of the value displayed by WDS.
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Is the value displayed between -65 mB and -85 mB?
Yes
GO to B3.
No
If the displayed value is between 0 mB and - 65 mB,
GO to B2. If the displayed value is -85 mB or a
greater negative value,
NOTE: A small amount of air bubbles in the fuel
supply line is acceptable.
Observe the flow of fuel through the clear plastic
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pipe of the hand pressure pump.
Is the hand pressure pump clear plastic pipe free from
an excessive volume of air bubbles?
Yes
Using WDS, guided diagnostic, run the fuel system
pressure test, CHECK the fuel pump high-pressure
fuel supply pressure.
No
CHECK for air ingress into the fuel lines.
REFER to: Fuel System - 75 PS/90 PS
Fuel System - General Information, Diagnosis and
Testing).
Remove the charge air cooler.
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REFER to: Charge Air Cooler - 1.8L Duratorq-TDCi
(Lynx) Diesel/1.8L Duratorq- TDDi (Lynx) Diesel (75
PS/90 PS) (303-12 Intake Air Distribution and
Filtering, Removal and Installation).
Clean the area around the fuel filter to fuel pump
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fuel return line quick release coupling.
REFER to: Fuel Injection Component Cleaning -
Vehicles With: Common Rail Fuel Injection
04B Fuel Charging and Controls - 1.8L Duratorq-
TDCi (Lynx) Diesel/1.8L Duratorq-TDDi (Lynx)
Diesel, General Procedures).
Connect special tools 310-025-18 and 310-025- 19A
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to the WDS pressure transducer adaptor GV2323.
http://vnx.su
GO to B4.
(310-00A
(303-