Throttle Body Assembly Replacement

REMOVAL PROCEDURE




1. Turn OFF the ignition.
2. Drain the radiator coolant. Refer to Draining and Filling Cooling System in Cooling System.
3. Remove the fuel injector sight shield.




4. Disconnect the intake air temperature (IAT) sensor electrical connector (2) from the intake air temperature sensor (1).




5. Disconnect the intake air duct from the throttle body.




6. Disconnect the idle air control (IAC) valve electrical connector from the IAC valve.




7. Disconnect the throttle position (TP) sensor electrical connector from the TP sensor.




8. Disconnect the mass air flow (MAF) sensor electrical connector from the MAF sensor.




9. Disconnect the cruise control cable (1) from the accelerator controls cable bracket (2).




10. Disconnect the accelerator controls cable (1) accelerator controls cable bracket (2).




11. Disconnect the cruise control cable (2) from the throttle body lever (3).




12. Disconnect the accelerator controls cable (2) from the throttle body lever (3)




13. Disconnect the electrical harness (2) retainer clip (1) from the accelerator controls cable bracket (3) if applicable.




14. Disconnect the vacuum hoses from the throttle body noting location.




15. Remove the nut (2) from the air injection pipe (1) if applicable.




16. Remove the 3 nuts and bolts holding the throttle body to the supercharger.




17. Remove the throttle body assembly.
18. Remove the accelerator controls cable bracket, if replacing throttle body.

NOTE: 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.

19. Clean the gasket surface on the supercharger and the throttle body assembly.

INSTALLATION PROCEDURE

NOTE: Refer to Fastener Notice in Service Precautions.




1. Install the accelerator controls bracket to the throttle body if necessary.

Tighten
Tighten the bolts to 16 N.m (12 lb ft).




2. Install the new gasket, and new inserts and studs if necessary.
3. Install the throttle body assembly.
4. Install the throttle body retaining nuts and bolts.

Tighten
Tighten the throttle body retaining nuts and bolts to 10 N.m (89 lb in).




5. Install the nut (2) from the air injection pipe (1) if applicable.

Tighten
Tighten the nut to 10 N.m (89 lb in).




6. Connect the vacuum hoses to the throttle body.




7. Connect the accelerator controls cable (1) to accelerator controls cable bracket (2) at the throttle body.




8. Connect the cruise control cable (1) to accelerator control bracket at the throttle body (2).

IMPORTANT: The throttle should operate freely without binding between full closed and wide open throttle (WOT).




9. Install the accelerator control cable (2) to the throttle body lever (3).




10. Connect the cruise control cable (2) to the throttle body lever (3).
11. Check for complete throttle opening and closing positions by operating the accelerator controls pedal.




12. Connect the electrical harness (2) retainer clip (1) and harness to the accelerator controls bracket (3) if applicable.




13. Connect the MAF sensor electrical connector to the MAF sensor.




14. Connect the TP sensor electrical connector to the TP sensor.




15. Connect the IAC valve electrical connector to the IAC valve.




16. Connect the intake air duct to the throttle body.

Tighten
Tighten the clamp to 2 N.m (18 lb in).




17. Connect the intake air temperature (IAT) sensor electrical connector (2) to the IAT sensor (1).




18. Install the fuel injector sight shield.
19. Refill the radiator to replace the lost coolant. Refer to Draining and Filling Cooling System in Cooling System.