For 1990-2009 cars only
Removal Procedure
- Remove the air intake ducts.
- Inspect the throttle body bore and the throttle valve plate for any deposits. It is necessary to open the throttle valve in order to inspect all of the surfaces.
- Clean the throttle body bore and the throttle valve plate by using a clean shop towel with GM Top Engine Cleaner, P/N 1052626 or AC-Delco Carburetor Tune-Up Conditioner, P/N X66-P, or an equivalent product.
Notice: Do not use any solvent that contains Methyl Ethyl Ketone (MEK). This solvent may damage fuel system components.
Installation Procedure
- Install the air intake ducts.
- Tighten the clamps. Then, ensure that there are no air leaks.
