GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2000 🢒 Catera 🢒 Engine 🢒 Engine Mechanical - 3.0L (L81) 🢒 Oil Pan Installation

Upper Oil Pan
  1. Install the oil intake pipe.

    2. 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.

  2. Install the oil intake pipe bolts.

    3. Tighten
    Tighten the oil intake pipe bolts to 8 N·m (71 lb in).


    Object Number: 242093 Size: MH
  3. Apply a bead of silicone sealing compound, GM P/N 12346286 or equivalent, in the bottom of the upper oil pan groove.

    4. Keep the bead at least 10 mm (0.4 in) from the bolt holes to prevent carry over onto bolt threads.


    Object Number: 242090 Size: MH
  4. Install the new rubber seal into the groove of the upper oil pan.

    5. Important: Installation of the upper oil pan must be carried out within 10 minutes of applying the sealant.

  5. Apply a 3 mm (0.12 in) bead of silicone sealant, GM P/N 12346286 or equivalent, on the OUTSIDE edge of the seal at the front of the upper oil pan and apply an identical bead on the INSIDE edge of the seal at the rear of the upper oil pan.

    6. The beads will overlap at the middle of the upper oil pan as shown in the supporting illustration.


    Object Number: 159448 Size: SH
  6. Install the upper oil pan bolts.

    7. Tighten
    Tighten the upper oil pan bolts to 15 N·m (11 lb ft).

Lower Oil Pan

    Object Number: 159474 Size: SH
  1. Install the oil level sensor to the oil pan (If removed).

    2. 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.

  2. Install the oil level sensor bolts.

    3. Tighten
    Tighten the oil level sensor bolts until fully seated. Do not strip the oil level sensor bolts.


    Object Number: 159221 Size: SH
  3. Install the oil pan gasket.

    4. Object Number: 159445 Size: SH
  4. Install the oil level sensor wire electrical connector to the upper oil pan and secure with the C-clip (1).

    5. Object Number: 159221 Size: SH
  5. Install the lower oil pan to the upper oil pan.
  6. Install the lower oil pan bolts.

    7. Tighten
    Tighten the lower oil pan bolts to 8 N·m (71 lb in).