GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1640597  Size: SH
  1. Remove the engine oil fill cap.
  2. Pull up on the cover in order to disengage the cover from the stud.

Installation Procedure


    Object Number: 1640597  Size: SH
  1. Align the cover to the stud on the engine, push down on the cover above the stud in order to engage the cover to the stud.
  2. Install the engine oil fill cap.