Throttle Body Assembly Replacement

REMOVAL PROCEDURE

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.




1. Remove the injector sight shield.
2. Drain the radiator coolant. Refer to Draining and Filling Cooling System in Cooling System.
3. Disconnect the IAT electrical connector.
4. Remove the air intake tube.




5. Disconnect the IAC valve electrical connector.




6. Disconnect the MAF sensor electrical connector.




7. Disconnect the TP sensor electrical connector.




8. Disconnect the accelerator and cruse controls cables (1).




9. Disconnect the electrical harness retainer clip (1) and harness (2) from the accelerator control cable bracket (3) if applicable.




10. Remove the accelerator controls cable bracket.




11. Disconnect the vacuum line from the throttle body.




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




13. Remove the exhaust crossover.




14. Remove the throttle body support bracket.




15. Remove the nuts and bolts holding the throttle body to the intake manifold using a wrench on the manifold side of the inserts to prevent the inserts from rotating in the manifold casting.
16. Remove the throttle body assembly.
17. Clean the gasket surface on the intake manifold and the throttle body assembly.

INSTALLATION PROCEDURE

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




1. Install the new gasket, and new inserts and studs if necessary.
2. Install the throttle body assembly.

NOTE: Refer to Fastener Notice in Service Precautions.

3. Reinstall the throttle body 3 retaining nuts and bolts.

Tighten
Tighten the throttle body retaining nuts and bolts to 10 N.m (7 lb ft).




4. Install the throttle body support bracket.




5. Install the exhaust crossover.




6. Install the accelerator controls cable bracket.
7. Reinstall the air injection pipe to the throttle body if applicable.

Tighten
Tighten the nut to 10 N.m (7 lb ft).




8. Connect the vacuum line to throttle body.




9. Connect the IAC valve sensor electrical connector.




10. Connect the MAF sensor electrical connector.
11. Connect the IAT electrical connector.




12. Connect the TP sensor electrical connector.
13. Install the air intake tube.
14. Refill the radiator to replace the lost coolant.




15. Install the injector sight shield.