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 Engine Cooling.
3. Remove the air intake tube.




4. Disconnect the IAC valve sensor electrical connector.




5. Disconnect the MAF sensor electrical connector.




6. Disconnect the TP sensor electrical connector.




7. Disconnect the accelerator controls cable.




8. Remove the accelerator controls cable bracket.




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




10. Disconnect the vacuum line from the throttle body.




11. Remove the throttle body support bracket.




12. 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.




13. Remove the throttle body assembly.
14. 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. Install the throttle body retaining nuts and bolts.

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




4. Install the accelerator controls cable bracket.




5. Connect the accelerator control cables.
6. Check for complete throttle opening and closing positions by operating the accelerator pedal. Also, check for poor carpet fit under the accelerator pedal.




7. Connect the electrical harness retainer clip (1) and harness (2) to the accelerator control cable bracket (3).




8. Connect the vacuum line to the throttle body.




9. Connect the IAC valve sensor electrical connector.




10. Connect the MAF sensor electrical connector.




11. Connect the TP sensor electrical connector.
12. Install the air intake tube.
13. Refill the radiator to replace the lost coolant. Refer to Draining and Filling Cooling System in Engine Cooling.




14. Install the injector sight shield.