Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual — part 381
6E–554
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Fuel Injectors
Removal Procedure
NOTE: If the fuel injectors are leaking, the engine oil may
be contaminated with fuel. Check the oil for signs of
contamination and change the oil and the filter if
necessary.
NOTE: Use care in removing the fuel injectors in order to
prevent damage to the fuel injector electrical connector
pins or the fuel injector nozzles. The fuel injector is an
electrical component and should not be immersed in any
type of cleaner as this may damage the fuel injector.
IMPORTANT:
Fuel injectors are serviced as a complete
assembly only.
1. Disconnect the negative battery cable.
2. Remove the common chamber. Refer to
Common
Chamber in Engine Mechanical section.
3. Remove the fuel rail. Refer to
Fuel Rail section.
014RW164
4. Remove the injector retainer clip.
040RY00001
5. Remove the fuel injector assembly.
6. Remove the O-ring from the fuel injector.
7. Remove the O-ring backup from the fuel injector .
Inspection Procedure
1. Inspect the O-rings for cracks or leaks.
2. Replace worn or damaged O-rings.
3. Lubricate the new O-rings with engine oil before
installation.
Installation Procedure
1. Install the O-ring backup on the fuel injector.
2. Install the new O-ring on the fuel injector.
3. Install the fuel injector on the fuel rail.
040RY00001
4. Use new fuel injector retainer clips to retain the fuel
injector to the fuel rail.
5. Coat the end of the fuel injector with gasoline.
6E–555
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
6. Install the fuel rail. Refer to
Fuel Rail section.
014RW164
7. Install the common chamber. Refer to
Common
Chamber in Engine Mechanical section.
8. Install the engine cover.
9. Connect the negative battery cable.
Fuel Metering System
Fuel Pressure Relief Procedure
CAUTION: To reduce the risk of fire and personal
injury, there are necessary to relieve the fuel system
pressure before filler and gauge unit servicing the
fuel system components.
CAUTION: After relieving the system pressure, a
small amount of fuel may be released when servicing
fuel lines or connections. Reduce the chance of
personal injury by covering the fuel line fittings with
a shop towel before you disconnect the fittings. The
towels will absorb any fuel that may leak out. When
the disconnect is completed, place the towel in an
approved container.
1. Remove the fuel cap.
2. Remove the fuel pump relay from the underhood
relay box. Refer to
Fuel Pump Relay section.
014RY00004
3. Start the engine and allow it to stall.
4. Crank the engine for 30 seconds.
5. Disconnect the negative battery cable.
Fuel Pump Assembly
Removal Procedure
Refer to
Fuel Tank In Fuel Pump Relay section.
014RW133
6E–556
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Fuel Pump Relay
Removal Procedure
1. Remove the fuse and relay box cover from under the
hood.
2. Consult the diagram on the cover to determine which
is the correct relay.
3. Insert a small screwdriver into the catch slot on the
forward side of the fuel pump relay.
D
The screwdriver blade will release the catch inside.
D08RY00291
4. Pull the relay straight up and out of the fuse and relay
box.
014RY00004
Installation Procedure
1. Insert the relay into the correct place in the fuse and
relay box with the catch slot facing forward.
2. Press down until the catch engages.
D
An audible “click” will be heard.
014RY00004
3. Install the fuse and relay box cover.
6E–557
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Fuel Rail Assembly
Removal Procedure
NOTE:
D
Do not attempt to remove the fuel inlet fitting on the
fuel rail. It is staked in place. Removing the fuel inlet
fitting will result in damage to the fuel rail or the
internal O-ring seal.
D
Use care when removing the fuel rail assembly in
order to prevent damage to the injector electrical
connector terminals and the injector spray tips.
D
Fittings should be capped and holes plugged during
servicing to prevent dirt and other contaminants from
entering open lines and passages.
IMPORTANT:
An eight-digit identification number is
stamped on the side of the fuel rail. Refer to this number
when you service the fuel rail or when a replacement part
is required.
014RY00008
Before removal, the fuel rail assembly may be cleaned
with a spray type engine cleaner. Follow the spray
package instructions. Do not immerse the fuel rails in
liquid cleaning solvent.
1. Depressurize the fuel system. Refer to Fuel Pressure
Relief Procedure in this Section.
2. Disconnect the negative battery cable.
3. Remove the engine cover.
4. Disconnect the throttle position sensor electrical
connector from throttle body.
5. Disconnect the connectors from manifold absolute
pressure sensor, solenoid valve, electric vacuum
sensing valve.
6. Disconnect the vacuum hose on canister VSV and
positive crankcase ventilation hose.
7. Remove the common chamber. Refer to the common
chamber in Engine Mechanical section.
1. Lift up carefully on the fuel injectors. Do not
separate the fuel injectors from the fuel rail.
2. If an injector becomes separated from the fuel
rail, the infector O-ring seals and the retainer clip
must be replaced.
3. Drain residual fuel into an approved container.
014RW164
8. If removal of the fuel pressure regulator is necessary,
refer to
Fuel Pressure Regulator section.
9. If removal of the fuel injectors is necessary, refer to
Fuel Injectors section.
Installation Procedure
1. If the fuel injectors were removed, install them. Refer
to
Fuel Injectors section.
2. If the fuel pressure regulator was removed, install it.
Refer to
Fuel Pressure Regulator section.
3. Install the common chamber. Refer to common
chamber in engine Mechanical section.
014RW164
4. Connect the vacuum hose on Canister VSV and
positive crankcase ventilation hose.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст