Tools Required
SA9127E Gage Bar Set
SA9805E Fuel Line Disconnect
Set
Removal Procedure
- Disconnect the negative battery cable.
- Disconnect the
intake air temperature (IAT) sensor connector.
- Loosen the clamp at the air cleaner assembly.
- Remove the push pin attachment from the outlet resonator/duct assembly
to support bracket.
- Loosen the clamp at the throttle body assembly.
- Disconnect the PCV fresh air vent hose at the cam cover.
- Remove the outlet resonator/duct assembly.
- Place a shop towel over the throttle body assembly.
- Using shop air, blow off dirt and dust near the fuel injector ports.
Caution: Refer to Relieving Fuel Pressure Caution in the Preface section.
- Relieve the fuel system pressure. Refer to
Fuel System Diagnosis
.
- Disconnect the SA9127E
after the pressure has been relieved.
- Position the engine harness away from the fuel rail assembly.
- Disconnect the fuel rail bracket and nut
at the rear of cam cover.
Notice: An open-end wrench must be used to support the fuel line to rail connection
during loosening/tightening to avoid damaging the fuel rail assembly.
- Disengage the fuel transfer lines at the quick contract from fuel line using
the SA9805E
blue tool.
- While supporting the fuel rail assembly with an open-end wrench, loosen
the transfer line fitting at the fuel rail.
- Position the fuel
line away from the rail assembly without disconnecting the degas hose.
- Disconnect the electrical connectors at the fuel injectors.
- Remove the fuel rail assembly attachment bolts.
Notice: Use care in removing the fuel rail assembly to prevent damage to the electrical
connector terminals and spray tips. The fuel injector is serviced as a complete assembly
only. Support fuel after fuel rail is removed in order to avoid damaging fuel rail
components. Since it is electrical, it should not be immersed in any cleaner.
- Remove the fuel rail assembly by carefully pulling the rail backward and upward
to remove the injectors from the cylinder head.
- Move the fuel rail assembly rearward while slightly rotating it to remove
the fuel rail assembly.
Notice: When cleaning or servicing the fuel rail, care must be taken to assure that
the plastic fuel rail surfaces that mate to the injector O-rings are not scratched.
Important: Whenever the fuel rail is removed for service,
the upper and lower O-ring seals must be replaced. The injectors can be serviced
individually if required.
- Remove the fuel injector retaining clips.
- Remove the fuel injectors from the fuel rail.
- Remove and discard all injector O-ring seals by using a small pick.
Installation Procedure
- Transfer the components to new the fuel rail if the rail is being replaced.
- Install the new upper and lower O-ring seals to the injectors.
- Install the injectors to the fuel rail assembly.
- Install the isolators with new seals to the injectors.
- Install the injector retaining clip.
Important: Lubricate the O-rings at the injector isolators
prior to installing the injectors into the cylinder head.
- Install the fuel rail to the cylinder head.
Notice: Refer to Fastener Notice in the Preface section.
- Install the fuel rail bolts.
Tighten
Tighten the fuel rail-to-cylinder head - L61 to
10 N·m (89 lb in).
- Re-position the
fuel line assembly.
Notice: An open-end wrench must be used to support the fuel line to rail connection
during loosening/tightening to avoid damaging the fuel rail assembly.
- Install the fuel line bracket and bracket bolt.
Tighten
Tighten the transfer line fitting-to-fuel rail -
L61 to 10 N·m (89 lb in).
- Connect the fuel rail bracket and nut to
the cylinder head.
Tighten
Tighten the fuel line bracket bolt - L61 to 10 N·m
(89 lb in).
- Connect the fuel line to the transfer line.
Important: To ensure proper connection and to fully
seat the retaining tabs, lightly pull apart the connection.
- Insert the fuel transfer line into the fuel line connection. An audible click
noise should be heard.
- Remove the shop towel from the throttle body.
- Install the outlet
resonator/duct assembly into position.
- Connect the PCV fresh air bent hose assembly.
- Tighten the clamp at the throttle body assembly.
- Position the outlet resonator/duct assembly up with the support bracket
and install the push pin.
- Tighten the clamp at the air cleaner assembly.
- Connect the intake air temperature (IAT) sensor connector.
- Connect the negative battery cable.
Tighten
Tighten the battery terminal bolts to 17 N·m
(13 lb ft).