GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

  1. Disconnect the battery negative cable.

  2. Object Number: 276410  Size: SH
  3. Remove the retaining bolt for the oil level indicator tube from the generator mounting bracket.
  4. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  5. Remove the retaining clip securing the oil level indicator tube.
  6. Remove the oil level indicator tube from the engine oil pan.
  7. Remove the O-ring from the oil level indicator tube.

Installation Procedure

Important: When installing the oil level indicator tube to the engine, always use a new O-ring.


    Object Number: 173185  Size: SH
  1. Apply clean engine oil to the oil level indicator tube O-ring.
  2. Install the new O-ring on the oil level indicator tube.
  3. Install the oil level indicator tube to the engine oil pan.

  4. Object Number: 258830  Size: SH
  5. Install the retaining clip securing the oil level indicator tube.
  6. Lower the vehicle.
  7. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  8. Install the bolt that retains the oil level indicator tube to the generator mounting bracket.
  9. Tighten
    Tighten the bolt to 12 N·m (106 lb in).

  10. Connect the battery negative cables.