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03-04B-6
Fuel Charging and Controls-4.6L (2V)
03-048-6
DIAGNOSIS AND TESTING
Fuel Charging and
Co
ntr
o
ls
Refer to the Powertrain Control
I
Emissions Diagnosis
Manual.4
REMOVAL AND INSTALLATION
Fuel Charging System
Pre-Service Procedures
SPECIAL SERVICE TOOL(S) REQUIRED
Description
Tool Number
Fuel Pressure Gauge
TSOL-9974-B
1 .
WARNING: THE FUEL SYSTEM IS NORMALLY
PRESSURIZED TO 276 KPA (40 PSI). USE
CARE WHEN SERVICING THE FUEL SYSTEM
OR PERSONAL INJURY COULD OCCUR.
NOTE: The fuel charging system consists of the
fuel injection supply manifold (9F792), fuel
injectors, fuel pressure regulator (9C968) and the
intake manifold (9424). Prior to service or
removal of the fuel charging system, the following
steps must be taken.
Disconnect battery ground cable ( 1430 1 ). Refer
to Section 14-0 1 .
2. Remove fuel tank filler cap (9030) and release
fuel tank pressure.
Fuel Pressure Relief
1 . NOTE: A fuel pressure relief valve (9H32 1) on the
fuel injection supply manifold is provided for this
procedure.
Install Fuel Pressure Gauge TSOL-997 4-8 to the
fuel pressure relief valve on the fuel injection
supply manifold.
2. Release pressure from fuel system. Refer to
Section 1 0-0 1 .
Post-Service Procedures
After the service is complete and the fuel charging
system is installed to engine, the following steps must
be taken:
1 . Install fuel tank filler cap at fuel tank (9002).
2. Connect battery ground cable.
3. Add engine coolant if required. Refer to Section
03-Q3.
4.
WARNING: THE FUEL SYSTEM IS NORMALLY
PRESSURIZED TO 276 KPA (40 PSI). USE
CARE WHEN SERVICING THE FUEL SYSTEM
OR PERSONAL INJURY COULD OCCUR.
NOTE: Check all connections at fuel injection
supply manifold, fuel injector or fuel line push
connect fittings.
Turn ignition switch ON
I
OFF several times
without starting engine to check for fuel leaks.
4 Can be purchased as a separate item.
5. Start engine and warm to operating temperature.
Check for engine coolant leak if coolant was
removed.
6. Perform powertrain control module seH-test to
check systems function. Refer to the Powertrain
Control
I
Emissions Diagnosis Manual4
_
Spring Lock Coupling
WARNING: DO NOT SMOKE, CARRY LIGHTED
TOBACCO OR AN OPEN FLAME OF ANY TYPE
WHEN WORKING ON OR NEAR ANY
FUEL-RELATED COMPONENT. HIGHLY
FLAMMABLE MIXTURES ARE ALWAYS PRESENT
AND MAY BE IGNITED, RESULTING IN POSSIBLE
PERSONAL INJURY.
WARNING: FUEL SUPPLY LINES ON VEHICLES
EQUIPPED WITH FUEL INJECTED ENGINES WILL
REMAIN PRESSURIZED FOR LONG PERIODS OF
TIME AFTER ENGINE SHUTDOWN. FUEL SYSTEM
PRESSURE MUST BE RELIEVED PRIOR TO FUEL
SYSTEM SERVICE TO PREVENT POSSIBLE
INJURY. REFER TO SECTION 1Q-0 1 , FUEL
SYSTEM PRESSURE RELIEF.
Removal
1 . Remove clip from spring lock coupling.
CLIP
V10147-A
2. Position Spring Lock Coupling Disconnect Tool
D87L -928Q-A for 3
I
8 inch tube or D87L -928Q-B
for 1
I
2 inch tube or equivalent onto coupling.
Make sure that tool can enter cage opening to
release the garter spring.
CAGE
OPENING
SPRING LOCK COUPLING
DISCONNECT TOOL:
D87l-9280-A -
318
INCH
D87L-9280-B -
1/2
INCH
V10148-A
1997 Thunderbird, Cougar July 1 996