GM Service Manual Online
For 1990-2009 cars only

    Object Number: 10576  Size: SH
  1. Use a small screwdriver in order to pry open the tab of the electrical connector assembly (35).
  2. Remove the electrical connector assembly (35) and the O-ring (36).
  3. Check to see if the vent is damaged or plugged. If so, use a channel locks type of pliers and a large screwdriver in order to remove the vent assembly (37).
  4. Remove the oil pressure test hole plug (38).