Throttle Body: Service and Repair
Removal Procedure1. Disconnect the negative battery cable.
2. Drain the cooling system. Refer to Engine Cooling section.
3. Disconnect the electrical connectors:
- Throttle position (TP) sensor.
- Intake air temperature (IAT) sensor.Refer to Intake Air Temperature (IAT) Sensor.
4. Disconnect the vacuum hose below the air horn.
5. Remove the intake air duct clamp.
6. Disconnect the intake air duct.
7. Disconnect the coolant lines from the throttle body.
8. Remove the bolts from the common chamber.
9. Remove the throttle body from the common chamber.
10. Remove the gasket from the common chamber.
11. Remove the TP sensor. Refer to Throttle Position (TP) Sensor.
Installation Procedure
1. Install the TP sensor. Refer to Throttle Position (TP) Sensor.
2. Install the gasket on the common chamber.
3. Install the throttle body on the common chamber.
4. Secure the gasket and the throttle body with the four bolts.
- The vacuum lines must be properly routed under the throttle body before tightening the mounting bolts.
Tighten
Tighten the throttle body mounting bolts to 10 N-m (87 lb in).
5. Install the coolant lines.
6. Connect all the vacuum lines.
7. Install the intake air duct.
8. Tighten the intake air duct clamp.
9. Connect all the electrical connectors:
- Throttle position (TP) sensor.
- Intake air temperature (IAT) sensor.Refer to Intake Air Temperature (IAT) Sensor.
10. Install the accelerator cable assembly.Refer to Engine Speed Control System section.
11. Fill the cooling system.Refer to Engine Cooling section.
12. Install the negative battery cable.