Throttle Body Assembly Replacement

REMOVAL PROCEDURE

NOTE: Handle the electronic throttle control components carefully. Use cleanliness in order to prevent damage. Do not drop the electronic throttle control components. Do not roughly handle the electronic throttle control components. Do not immerse the electronic throttle control components in cleaning solvents of any type.




1. An 8-digit part identification number is stamped on the throttle body casting. Refer to this number if servicing, or if a part replacement is required.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
3. Partially drain the cooling system in order to allow the hoses at the throttle body to be removed. Refer to Draining and Filling Cooling System in Cooling System.
4. Lower the vehicle.

IMPORTANT: Cover or plug any openings when servicing the throttle body in order to prevent possible contamination.

5. Disconnect the intake air temperature sensor electrical connector.
6. Remove the air intake duct.




7. Disconnect the air control valve electrical connector.




8. Disconnect the TP sensor electrical connector.
9. Disconnect the crankcase ventilation hose from the throttle body.




10. Remove the throttle body attaching bolts.
11. Disconnect the coolant hoses from the throttle body.
12. Remove the throttle body and the gasket.

IMPORTANT: Do not reuse the throttle body gasket. Install a new gasket during assembly.

13. Discard the throttle body gasket.
14. Inspect the crankcase ventilation hose and the tube. Replace any damaged components.

INSTALLATION PROCEDURE




1. Install a new throttle body gasket.
2. Connect the coolant hoses to the throttle body.
3. Install the throttle body assembly.

NOTE: Refer to the Fastener Notice in Service Precautions.

IMPORTANT: Always use a torque wrench in order to obtain the proper torque.

4. Install the throttle body attaching bolts.

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




5. Connect the TP sensor electrical connector.
6. Connect the crankcase ventilation hose to the throttle body.

IMPORTANT: Ensure that the air control valve electrical connector and the connector seal are properly installed and not damaged.




7. Connect the air control valve electrical connector.




8. Install the air intake duct.
9. Connect the intake air temperature sensor electrical connector.
10. Refill the cooling system. Refer to Draining and Filling Cooling System in Cooling System.
11. Check for complete throttle opening and closing positions by operating the accelerator pedal. Monitor the throttle angles, using a scan tool. The accelerator pedal should operate freely without binding between full closed throttle and wide open throttle.
12. Start the engine.
13. Check for coolant leaks.