Throttle Body Service

REMOVAL PROCEDURE
1. Remove the air cleaner intake duct (3).
2. Inspect the throttle body bore and the throttle valve plate for deposits. It is necessary to open the throttle valve to inspect all surfaces.

NOTE: Do not use any solvent that contains Methyl Ethyl Ketone (MEK). This solvent may damage fuel system components.

3. Clean the throttle body bore and the throttle valve plate with GM PN 1052626 Top Engine Cleaner or AC-Delco PN X66-P Carburetor Tune-Up Conditioner, or equivalent, using a clean shop towel.

INSTALLATION PROCEDURE
1. Install the intake duct assembly (3) to the air cleaner.

NOTE: Refer to Fastener Notice in Service Precautions.

2. Install the air cleaner intake duct clamps.

Tighten
Tighten the clamp to 2 N.m (18 lb in).