Remove the air cleaner outlet duct. Inspect the throttle body bore and the throttle body plate for deposits. Clean the throttle body bore and the throttle plate using a clean shop towel with GM top engine cleaner, P/N 1052626, or A/C Delco Carburetor Tune-up Conditioner P/N X66P or an equivalent product. Install the air cleaner outlet duct.
By BobGM Specialist
02/11/2022