Throttle Body Inspection and Cleaning

Throttle Body Inspection and Cleaning

1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (Service and Repair) .
2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (Service and Repair) .
3. Inspect the throttle body bore and the throttle body plate for deposits. You will need to open the throttle plate in order to inspect all surfaces.
4. Clean the throttle body bore and the throttle plate using a clean shop towel with GM top engine cleaner, P/N 1052626 or AC Delco Carburetor Tune-up Conditioner, P/N X66P, or equivalent product.
5. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (Service and Repair) .
6. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (Service and Repair) .