03-04B-1 1
Fuel Charging and Controls-4.6L (2V)
03-04B-1 1
REMOVAL AND INSTALLATION (Continued)
Fuel Pressure Regulator
Removal
1 . Perform Pre-Service Procedures and Fuel
Pressure Relief if removing fuel pressure
regulator (9C968) while fuel injection supply
manifold (9F792) is installed on engine. Refer to
Fuel Charging System.
2. Remove air cleaner outlet tube (98659). Refer to
Section 03-12.
3. Remove vacuum line from fuel pressure regulator.
4. Remove two Allen-head retaining screws from
fuel pressure regulator housing and discard.
5. Remove fuel pressure regulator, return seal and
0-rings. Discard fuel pressure regulator return
seal and 0-rings.
6.
H
scraping is necessary, do not damage fuel
pressure regulator or fuel injection supply
manifold sealing surfaces.
Installation
1 .
CAUTION: Never use silicone grease.
Silicone grease will clog the fuel injectors.
Lubricate new fuel pressure regulator 0-rings
with clean engine oil meeting Ford specification
WSS-M2C 1 53-F.
2. Make sure sealing surfaces of fuel pressure
regulator and fuel injection supply manifold are
clean.
3. Install new fuel pressure regulator 0-rings and
new return seal on fuel pressure regulator.
4. Install fuel pressure regulator return seal on fuel
injection supply manifold.
5. Using new Allen-head retaining screws, install fuel
pressure regulator on fuel injection supply
manifold. Tighten retaining screws to 3-4.5 N·m
(27 -39 1b-in).
6. Install vacuum line to fuel pressure regulator.
7. Install air cleaner outlet tube as described in
Section 03-12.
8. Perform Fuel Charging System, Post-Service
Procedures as described.
Fuel Charging Wiring
Removal
1 . Remove air cleaner outlet tube (98659). Refer to
Section 03-12.
2. Disconnect battery ground cable (14301). Refer
to Section 14-Q 1 .
3. Disconnect fuel charging wiring (9D930) from fuel
injectors and electronic engine controls.
4. Disconnect fuel charging wiring from engine
control sensor wiring (1 2A581).
5. Remove fuel charging wiring retaining bolts and
fuel charging wiring from intake manifold (9424).
Installation
1 . Follow removal procedure in reverse order.
2. Tighten fuel charging wiring retaining bolts to 8-1 2
N·m (7 1-106 1b-in). Verify all electrical
connections.
Fuel Pump Relay
Removal
1 . Disconnect battery ground cable ( 14301 ). Refer
to Section 14-0 1 .
2. Locate fuel pump relay ( 1 4N089) in the engine
compartment power distribution center and
remove fuel pump relay.
Installation
1 . Follow removal procedure in reverse order.
CLEANING AND INSPECTION
Throttle Body
WARNING: DO NOT SMOKE OR CARRY LIGHTED
TOBACCO OR 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.
The throttle body (9E926) for this vehicle is a
sludge-resistant design with a coating on the bore and
plate. Sludge accumulation will not affect the throttle
body air flow. Any attempt to clean the bore and plate
area will impair the effectiveness of the coating. Do
not clean the bore and plate area of the throttle body.
Fuel Injector
Testing/ Cleaning
CAUTION: The fuel injectors for this vehicle have
a deposit-resistant design and should NOT be
cleaned.
Test fuel injectors using Rotunda Fuel Injector
Tester /Cleaner 1 64-R3759 or equivalent. Follow tool
manufacturer's operating instructions.
1997 Thunderbird, Cougar July 1 996