Throttle Body Cleaning Procedure
- Remove the air intake duct.
- Inspect the throttle body bore and the throttle valve plate for deposits. If necessary, open the throttle valve to inspect all surfaces.
- Clean the throttle body bore and the throttle valve plate using a clean shop towel with an appropriate cleaning substance, such one of the following:
- GM Top Engine Cleaner
- P/N 1052626
- AC-Delco Carburetor Tune-Up Conditioner
- P/N X66-P
- Install the air intake duct.
CAUTION:
Turn OFF the ignition before inserting fingers into the throttle bore. Unexpected movement of the throttle blade could cause personal injury.
NOTE:
Do not insert any tools into the throttle body bore in order to avoid damage to the throttle valve plate.
NOTE:
Do not use any solvent that contains Methyl Ethyl Ketone (MEK). This solvent may damage fuel system components.