GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1774876  Size: SH
  1. Remove the spark plug wire from the number 6 cylinder spark plug.
  2. Remove the heated oxygen sensor (HO2S) electrical connector (3) clip from the indicator tube tab.

  3. Object Number: 1581866  Size: SH
  4. Remove the oil level indicator.
  5. Remove the oil level indicator tube bracket bolt.
  6. Remove the oil level indicator tube.
  7. Inspect the oil level indicator tube O-ring seal for damage, replace as necessary.

Installation Procedure


    Object Number: 1581866  Size: SH
  1. Lubricate the oil level indicator tube O-ring seal with clean engine oil.
  2. Install the oil level indicator tube into the engine block.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the oil level indicator tube bracket bolt.
  5. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).

  6. Install the oil level indicator.

  7. Object Number: 1774876  Size: SH
  8. Install the HO2S electrical connector (3) to from the indicator tube tab.
  9. Install the spark plug wire to the number 6 cylinder spark plug.