Chevrolet Sonic Repair Manual: Throttle Body Inspection and Cleaning
Note:
Over extended time and mileage, deposits may accumulate on the back of the throttle valve plate. The source of the deposit is exhaust gas. Typically these deposits pose no problem. Occasionally the deposit may accumulate to a point where perceived pedal effort or throttle valve movement is effected.
- Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.
- Inspect the throttle body bore and the throttle valve plate for deposits. You will need to open the throttle valve in order to inspect all surfaces.
- Clean the throttle body bore and the throttle valve plate using a clean shop towel with an appropriate cleaner.
- Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.
Throttle Body Heater Outlet Pipe Replacement (LUW)
Throttle Body Heater Outlet Pipe Replacement
Callout
Component Name
Preliminary Procedure
Drain the cooling system. Refer to Co ...
Throttle Body Installation
Install the throttle body (2) and a NEW throttle body
seal ring (1).
Caution: Refer to Fastener Caution.
Install the 4 throttle body bolts (3) an ...
Other materials:
Heater Core Inlet Tube Replacement
Heater Core Inlet Tube Replacement
Callout
Component Name
Preliminary Procedures
Remove the Heater and Air Conditioning Evaporator and Blower Module.
Refer to Heater and Air Conditioning Evaporator and Blower Module Removal
...
Radiator Inlet Hose Replacement (LUV)
Radiator Inlet Hose Replacement
Callout
Component Name
Preliminary Procedures
Drain the engine coolant. Refer to Cooling System Draining and Filling.
Remove the fasteners securing the radiator surge tank to the vehicle
...
Camshaft Sprocket Installation
Install the intake camshaft sprocket (3).
Install the intake camshaft position sensor exciter wheel (2) and the intake
camshaft sprocket bolt (1), but do not tighten yet.
Install the exhaust camshaft sprocket.
Note: Tightening of camshaft sprocket bolts will ...
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