GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 37228 Seal Cutter

Removal Procedure


    Object Number: 1334847  Size: SH
  1. Remove the oil level indicator.
  2. Remove the oil level indicator tube bolt from the fuel injection control module bracket.
  3. If vehicle is a 4-wheel drive (4WD), remove the front differential carrier. Refer to Differential Carrier Assembly Replacement in Front Drive Axle.
  4. If vehicle is a 2-wheel drive (2WD), disconnect the relay rod from the pitman arm and idler arm. Refer to Relay Rod Replacement in Steering Linkage (Non-Rack and Pinion).
  5. Remove the lower oil pan. Refer to Lower Oil Pan Replacement .
  6. Remove the engine flywheel. Refer to Engine Flywheel Replacement .

  7. Object Number: 673564  Size: SH
  8. Remove the battery cable bracket bolts.

  9. Object Number: 673568  Size: SH
  10. Remove the battery cable bracket nut.

  11. Object Number: 1334849  Size: SH
  12. Remove the two flywheel housing to upper oil pan bolts.

  13. Object Number: 1334851  Size: SH
  14. Remove the upper oil pan bolts and any brackets. Mark the bolt location of the bracket.
  15. Separate the upper oil pan from the engine block using J 37228 .
  16. Remove the upper oil pan. The oil level indicator tube needs to be removed while lowering the upper oil pan.
  17. If required, clean and inspect the upper oil pan. Refer to Upper Oil Pan Cleaning and Inspection .

Installation Procedure


    Object Number: 663817  Size: SH
  1. Apply a 2-3 mm (0.79-0.118 in) wide by 0.5-1.5 mm (0.02-0.06 in) bead of sealant to the upper oil pan mating surfaces. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.
  2. Apply a 2-3 mm (0.79-0.118 in) wide by 0.5-1.5 mm (0.02-0.06 in) bead of sealant to the flywheel housing sealing surface. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.

  3. Object Number: 1334851  Size: SH
  4. Install the upper oil pan to the engine block. Ensure the oil level indicator tube is installed into the upper oil pan.
  5. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 663823  Size: SH
  6. Install any brackets and the upper oil pan bolts in the sequence shown.
  7. Tighten
    Tighten the bolts to 20 N·m (15 lb ft).


    Object Number: 1334849  Size: SH
  8. Install the two flywheel housing to upper oil pan bolts.
  9. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).


    Object Number: 673564  Size: SH
  10. Install the battery cable bracket bolts.
  11. Tighten
    Tighten the bolts to 12 N·m (106 lb in).


    Object Number: 673568  Size: SH
  12. Install the battery cable bracket nut.
  13. Tighten
    Tighten the nut to 8 N·m (71 lb in).


    Object Number: 1334847  Size: SH
  14. Install the engine flywheel. Refer to Engine Flywheel Replacement .
  15. Install the lower oil pan. Refer to Lower Oil Pan Replacement .
  16. If vehicle is a 4WD, install the front differential carrier. Refer to Differential Carrier Assembly Replacement in Front Drive Axle.
  17. If vehicle is a 2WD, Connect the relay rod to the pitman arm and idler arm. Refer to Relay Rod Replacement in Steering Linkage (Non-Rack and Pinion).
  18. Lower the vehicle.
  19. Install the oil level indicator tube bolt to the fuel injection control module bracket.
  20. Tighten
    Tighten the bolt to 21 N·m (15 lb ft).

  21. Install the oil level indicator.
  22. Fill the engine with oil. Refer to Engine Oil and Oil Filter Replacement .