GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the throttle body air inlet duct. Refer to Air Cleaner Inlet Duct Replacement.

  2. Object Number: 164784  Size: SH
  3. Remove the pressure test hole plug (38).

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 164784  Size: SH
  1. Install the pressure test hole plug (38) and tighten to 12 N·m (106 lb in) .
  2. Install the throttle body air inlet duct. Refer to Air Cleaner Inlet Duct Replacement.