GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Colorado Pickup - 4WD 🢒 Engine 🢒 Engine Mechanical - 3.7L 🢒 Crankshaft Rear Oil Seal and Housing Replacement

Special Tools

    • J 8092 Driver Handle
    • J 44215 Rear Seal Installer

Removal Procedure

    Object Number: 1243910 Size: SH
  1. Remove the flywheel. Refer to Engine Flywheel Replacement.
  2. Remove the 2 bolts securing the oil pan to the crankshaft rear oil seal housing.
  3. Remove the crankshaft rear oil seal housing bolts.
  4. Install 2 bolts into the threaded holes to act as jack screws and tighten evenly to release the crankshaft rear oil seal housing from the engine block and oil pan.
  5. Remove the crankshaft rear oil seal housing.
  6. Remove the 2 bolts from the jack screw holes.

    7. Object Number: 1243912 Size: SH

    Note: Do not damage the seal bore.

  7. Using a hammer and a punch, remove the crankshaft rear oil seal from the crankshaft rear oil seal housing. Discard the seal.
  8. Clean and inspect the crankshaft rear oil seal housing.
  9. Clean and inspect the engine block and oil pan sealing surface.

Installation Procedure

    Object Number: 858359 Size: SH

    Note: The crankshaft rear oil seal housing must be installed within 10 minutes from when the sealer was applied.

  1. Apply a 3 mm (0.12 in) bead of sealer (1) to the following:
    2. • The crankshaft rear oil seal housing, were the housing meets the engine block
    • The surface of the crankshaft rear oil seal housing, were the housing meets the oil pan
    • The surface of the oil pan, were the oil pan meets the housing
    • Refer to Adhesives, Fluids, Lubricants, and Sealers.

    Object Number: 1243910 Size: SH

    Note: Tilting the crankshaft rear oil seal housing will allow sealer between the housing and the oil pan.

  2. Complete the following to install the crankshaft rear oil seal housing:
    3. 2.1. Align the housing with the right alignment dowel, tilting the left side up slightly.
    2.2. Align the housing with the left alignment dowel.
    2.3. Press the housing against the engine block into place.
  3. Install the crankshaft rear oil seal housing bolts.

    4. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the 2 oil pan bolts.
    5. • Tighten the crankshaft rear oil seal housing bolts to 10 N·m (89 lb in).
    • Tighten the (end) oil pan bolts to 10 N·m (89 lb in).
  5. Lightly lubricate the crankshaft rear oil seal lip with clean engine oil.
  6. Position the plastic installation sleeve supplied with the new seal to the crankshaft.

    7. Object Number: 954230 Size: SH
  7. Use the J 44215 with the J 8092 and a hammer to install the crankshaft rear oil seal into the crankshaft rear oil seal housing.
    8. • Ensure the seal is installed square.
    • The seal will bottom out in the housing when fully installed.
  8. Install the flywheel. Refer to Engine Flywheel Replacement.