Ford Transit 2002 Owner's Manual page 890

B4: CHECK THE FUEL PUMP FUEL SUPPLY SYSTEM FOR RESTRICTION
PINPOINT TEST C : FUEL INJECTOR BACK LEAK TEST
TEST CONDITIONS
C1: FUEL SYSTEM HIGH-PRESSURE TEST
CAUTIONS:
Do not run the fuel system high-pressure test more than twice. Failure to follow this
instruction may result in damage to the fuel pump.
Do not crank the engine for more than 5 seconds during the fuel system high-
fuel supply pressure. If no fault is indicated with the
high-pressure fuel supply pressure, RETURN to the
Symptom Chart.
No
CHECK the fuel return system for damage or
restriction. REPAIR or INSTALL new components as
required. TEST the system for normal operation.
Remove the charge air cooler.
1
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
2
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).
Disconnect the fuel pump fuel supply line.
3
REFER to: Quick Release Coupling
System - General Information, General
Procedures).
Install a blanking plug to the open end of the fuel
pump union.
Place the open end of the fuel pump fuel supply
4
line into a clean container.
Operate the hand pressure pump at least three
5
times in rapid succession and observe the value
displayed by WDS.
Does the fuel pressure indicated by WDS when
operating the hand pressure pump instantly fall to zero
when the hand pressure pump is released?
Yes
CHECK the fuel level sensor and fuel tank fuel
supply line for restriction. REPAIR or INSTALL new
components as required.
No
INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.8L Duratorq-TDCi (Lynx)
Diesel (310-01A Fuel Tank and Lines, Removal and
Installation).
Test the system for normal operation.
DETAILS/RESULTS/ACTIONS
http://vnx.su
(303-
(310-00A Fuel