Throttle Body Assembly Replacement VIN K
Removal Procedure
- Remove the fuel injection sight shield. Refer to
Fuel Injector Sight Shield Replacement
in Engine Mechanical.
- Drain the radiator coolant. Refer to
Cooling System Draining and Filling
in Engine Cooling.
- Remove the air cleaner intake duct. Refer to
Air Cleaner Inlet Duct Replacement
.
- Disconnect the idle air control (IAC) valve
electrical connector from the IAC valve.
- Disconnect the throttle position (TP) sensor electrical connector from the
TP sensor.
- Disconnect the mass air flow (MAF) sensor
electrical connector from the MAF sensor.
- Remove the cruise control cable (2)
from the accelerator control bracket (4) and throttle body lever (3).
Refer to
Cruise Control Cable Replacement
in
Cruise Control.
- Remove the accelerator control cable (2)
from the accelerator control bracket and throttle body lever (3). Refer to
Accelerator Control Cable Replacement
.
- Remove the electrical harness retainer clip (1)
from the accelerator control cable bracket (3) if applicable.
- Remove the vacuum hoses from the throttle
body noting location.
- Remove
the throttle body support bracket.
- Remove the 3 nuts and studs holding the
throttle body to the intake manifold.
- Remove the throttle body assembly from the intake manifold.
Notice: Do not use solvent of any type when cleaning the gasket surfaces on
the intake manifold and the throttle body assembly, as damage to the gasket
surfaces and throttle body assembly may result.
Use care in cleaning the gasket surfaces on the intake manifold and
the throttle body assembly, as sharp tools may damage the gasket surfaces.
- Clean the gasket surface on the intake manifold and the throttle
body assembly.
- Remove the accelerator controls cable bracket from the throttle body if the
throttle body is being replaced.
Installation Procedure
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the accelerator controls bracket to the throttle body if necessary.
Tighten
Tighten the accelerator controls bracket bolts to 16 N·m (12 lb ft).
- Install the new gasket, new inserts and
studs if necessary.
- Install the throttle body assembly.
- Install the throttle body retaining nuts.
Tighten
Tighten the fasteners to 10 N·m (89 lb in).
- Install
the throttle body support bracket.
Tighten
Tighten the fasteners to 10 N·m (89 lb in).
- Install the vacuum hoses to throttle body
as noted on removal.
- Install the electrical harness retainer
clip (1) to the accelerator control cable bracket (3) if previously
removed.
Important: The throttle should operate freely without binding between full closed and
wide open throttle (WOT).
- Install the accelerator control cable (2) to the accelerator control
bracket and throttle body lever (3). Refer to
Accelerator Control Cable Replacement
.
- Install the cruise control cable (2)
to the accelerator control bracket (4) and throttle body lever (3).
Refer to
Cruise Control Cable Replacement
in
Cruise Control.
- Connect the mass air flow (MAF) sensor
electrical connector to the MAF sensor.
- Connect the throttle position (TP) sensor electrical connector to the TP sensor.
- Connect the idle air control (IAC) valve
electrical connector to the IAC valve.
- Install the air cleaner intake duct. Refer to
Air Cleaner Inlet Duct Replacement
.
- Refill the radiator coolant. Refer to
Cooling System Draining and Filling
in Engine Cooling.
- Install the fuel injection sight shield. Refer to
Fuel Injector Sight Shield Replacement
in Engine Mechanical.
Throttle Body Assembly Replacement VIN 1
Removal Procedure
- Remove the fuel injection sight shield. Refer to
Fuel Injector Sight Shield Replacement
in Engine Mechanical.
- Drain the radiator coolant. Refer to
Cooling System Draining and Filling
in Engine
Cooling.
- Remove the air cleaner intake duct. Refer to
Air Cleaner Inlet Duct Replacement
.
- Disconnect the idle air control (IAC) valve electrical
connector from the IAC valve.
- Disconnect the throttle position (TP) sensor
electrical connector from the TP sensor.
- Disconnect the mass air flow (MAF) sensor electrical
connector from the MAF sensor.
- Remove the cruise control cable (2) from
the accelerator control bracket (4) and throttle body lever (3). Refer
to
Cruise Control Cable Replacement
in Cruise Control.
- Remove the accelerator control cable (2)
from the accelerator control bracket and throttle body lever (3). Refer to
Accelerator Control Cable Replacement
in Accelerator Controls Cable Replacement.
- Remove the electrical harness retainer clip (1)
from the accelerator control cable bracket (3) if applicable.
- Remove the vacuum hoses from the throttle body
noting location.
- Remove the 3 nuts and bolts holding the throttle
body to the supercharger.
- Remove the throttle body assembly from the intake manifold.
Notice: Do not use solvent of any type when cleaning the gasket surfaces on
the intake manifold and the throttle body assembly, as damage to the gasket
surfaces and throttle body assembly may result.
Use care in cleaning the gasket surfaces on the intake manifold and
the throttle body assembly, as sharp tools may damage the gasket surfaces.
- Clean the gasket surface on the intake manifold
and the throttle body assembly.
- Remove the throttle body assembly.
- Remove the accelerator controls cable bracket
from the throttle body if the throttle body is being replaced.
- Clean the gasket surface on the supercharger and the throttle body assembly.
Installation Procedure
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the accelerator controls bracket to the throttle body if necessary.
Tighten
Tighten the bolts to 16 N·m (12 lb ft).
- Install the new gasket, new inserts and studs
if necessary.
- Install the throttle body assembly.
- Install the throttle body retaining nuts and bolts.
Tighten
Tighten the throttle body retaining nuts and bolts to 10 N·m (89 lb in).
- Install the vacuum hoses to throttle body as
noted on removal.
- Install the electrical harness retainer clip (1)
to the accelerator control cable bracket (3) if previously removed.
Important: The throttle should operate freely without binding between full closed and
wide open throttle (WOT).
- Install the accelerator control cable (2) to the accelerator control
bracket and throttle body lever (3). Refer to
Accelerator Control Cable Replacement
in
Accelerator Controls Cable Replacement.
- Install the cruise control cable (2) to
the accelerator control bracket (4) and throttle body lever (3). Refer
to
Cruise Control Cable Replacement
in Cruise Control.
- Connect the mass air flow (MAF) sensor electrical
connector to the MAF sensor.
- Connect the throttle position (TP) sensor electrical
connector to the TP sensor.
- Connect the idle air control (IAC) valve electrical
connector to the IAC valve.
- Install the air cleaner intake duct. Refer to
Air Cleaner Inlet Duct Replacement
.
- Refill the radiator coolant. Refer to
Cooling System Draining and Filling
in Engine
Cooling.
- Install the fuel injection sight shield. Refer to
Fuel Injector Sight Shield Replacement
in Engine Mechanical.