Throttle Body Assembly Replacement

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.

IMPORTANT:
- DO NOT for any reason, insert a screwdriver or other small hand tools into the throttle body to hold open the throttle plate, as the throttle body could be damaged.
- An eight digit part identification number is stamped on the throttle body casting. Refer to this number if servicing, or part replacement is required.




1. Partially drain the cooling system in order to allow the hose at the throttle body to be removed. Refer to Draining and Filling Cooling System (LL8) or Draining and Filling Cooling System (LM4) in Cooling System.
2. Remove the air cleaner outlet duct.




3. Disconnect the throttle actuator motor electrical connector (2).




4. Reposition the throttle body hose clamp.
5. Remove both of the throttle body engine coolant hoses from the throttle body.




6. Remove the throttle body bolts

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




7. Remove the throttle body and gasket. Discard the gasket (1).

INSTALLATION PROCEDURE




1. Install a NEW throttle body gasket (1).
2. Install the throttle body.

NOTE: Refer to Fastener Notice in Service Precautions.




3. Install the throttle body bolts.

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




4. Connect the 2 throttle body engine coolant hoses to the throttle body.
5. Position the throttle body hose clamps.




6. Connect the throttle actuator motor electrical connector (2).




7. Install the air cleaner outlet duct.
8. Refill the cooling system. Refer to Draining and Filling Cooling System (LL8) or Draining and Filling Cooling System (LM4) in Cooling System.
9. Verify that the vehicle meets the following conditions:
- The vehicle is not in a reduced engine power mode.
- The ignition is ON.
- The engine is OFF.
10. Connect a scan tool in order to test for a proper throttle-opening and throttle-closing range.
11. Operate the accelerator pedal and monitor the throttle angles. The accelerator pedal should operate freely, without binding, between a closed throttle, and a wide open throttle (WOT).
12. Start the engine.
13. Inspect for coolant leaks.