Removal and Replacement
Throttle Body Assembly Replacement
Removal Procedure
1. Partially drain the cooling system. Refer to Cooling System Draining and Filling (L26 Static Fill) (Service and Repair)Cooling System Draining and Filling (LS4 Static Fill) (Service and Repair)Cooling System Draining and Filling (L26 GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (LS4 GE 47716 Fill) (Service and Repair).
2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (Service and Repair).
3. Remove the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement (Service and Repair).
4. Disconnect the throttle body electrical connector.
5. Remove the throttle body nuts (4) and the bolts (5).
6. Remove the throttle body assembly (1).
Caution: 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.
7. Clean the throttle body gasket mating surfaces.
Installation Procedure
1. Install the new gasket.
2. Install the throttle body assembly (1).
Caution: Refer to Fastener Caution (Fastener Caution).
3. Install the throttle body bolts (5) and the nuts (4).
Tighten the bolts and the nuts to 10 Nm (89 lb in).
4. Connect the throttle body electrical connector.
5. Install the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement (Service and Repair).
6. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (Service and Repair).
7. Fill the cooling system. Refer to Cooling System Draining and Filling (L26 Static Fill) (Service and Repair)Cooling System Draining and Filling (LS4 Static Fill) (Service and Repair)Cooling System Draining and Filling (L26 GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (LS4 GE 47716 Fill) (Service and Repair).
8. Refer to Control Module References (Programming and Relearning) for programming and setup information.