GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 2WD 🢒 Engine 🢒 Engine Mechanical - 4.3L 🢒 Oil Level Indicator Tube Replacement

Removal Procedure

    Object Number: 330580 Size: SH
  1. Remove the oil level indicator.
  2. Remove the right exhaust manifold. Refer to Exhaust Manifold Replacement - Right Side in Engine Exhaust.

    3. Object Number: 172977 Size: SH
  3. Remove the oil level indicator tube bolt.
  4. Remove the oil level indicator tube from the engine using a twisting motion.
  5. Clean the old sealer from the oil level indicator tube and the engine block.

Installation Procedure

    Object Number: 188009 Size: SH
  1. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent around the oil level indicator tube 13 mm (0.5 in) below the tube bead.
  2. Install the oil level indicator tube into the engine block. Rotate the oil level indicator tube into position.

    3. 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.

  3. Install the oil level indicator tube bolt.

    4. Tighten
    Tighten the oil level indicator tube bolt to 12 N·m (106 lb in).


    Object Number: 330580 Size: SH
  4. Install the right exhaust manifold. Refer to Exhaust Manifold Replacement - Right Side in Engine Exhaust.
  5. Install the oil level indicator.