CTS Wagon RWD V6-3.6L (2010)
Throttle Body: Procedures
Throttle Body Inspection and Cleaning
1. Remove the air cleaner intake duct. Refer to Air Cleaner Outlet Duct Replacement (LF1) (See: Air Cleaner Housing/Air Cleaner Fresh Air
Duct/Hose/Service and Repair)Air Cleaner Outlet Duct Replacement (LLT) (See: Air Cleaner Housing/Air Cleaner Fresh Air Duct/Hose/Service
and Repair).
2. Fully open the throttle valve in order to Inspect the throttle body bore and the throttle valve plate for any deposits.
Caution: Do not subject a throttle body assembly which contains the following components to an immersion cleaner or a strong solvent:
*
Throttle position (TP) sensor
*
Idle air control (IAC) valve
*
Sealed throttle shaft bearings
The cleaners will damage the electric components or sensors.
The cleaners will damage some of these components that contain seals or O-rings.
Solvents can wash away or break down the grease used on non-serviceable throttle shaft bearings.
Never use a wire brush or scraper to clean the throttle body. A wire brush or sharp tools may damage the throttle body components.
Do not use a cleaner that contains methyl ethyl ketone. This extremely strong solvent may damage components and is not necessary for this type of
cleaning.
3. Use a clean shop towel and Top Engine Cleaner GM P/N 1052626 or equivalent product in order to clean the throttle body bore and the throttle
valve plate.
If necessary, use a parts cleaning brush in order to remove heavy deposits.
4. Install the air cleaner duct. Refer to Air Cleaner Outlet Duct Replacement (LF1) (See: Air Cleaner Housing/Air Cleaner Fresh Air
Duct/Hose/Service and Repair)Air Cleaner Outlet Duct Replacement (LLT) (See: Air Cleaner Housing/Air Cleaner Fresh Air Duct/Hose/Service
and Repair).
5. Perform the throttle learn procedure. Refer to Throttle/Idle Learn (LF1) (See: Testing and Inspection/Programming and Relearning/Throttle/Idle
Learn)Throttle/Idle Learn (Without LF1) (See: Testing and Inspection/Programming and Relearning/Throttle/Idle Learn).
