GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 37228 Seal Cutter

Removal Procedure


    Object Number: 660296  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Place a suitable container under the engine in order to drain the oil.
  3. Remove the oil drain plug.
  4. Drain the engine oil.

  5. Object Number: 309158  Size: SH
  6. Remove the oil pan skid plate bolts and plate, if equipped.

  7. Object Number: 328107  Size: SH
  8. If equipped with a 2-wheel drive (2WD) vehicle, remove the crossmember bolts and crossmember.

  9. Object Number: 487521  Size: SH
  10. If equipped with a 4-wheel drive (4WD) vehicle, remove the crossmember bolts and crossmember.

  11. Object Number: 1334843  Size: SH
  12. Disconnect the oil level sensor electrical connector.

  13. Object Number: 1334845  Size: SH
  14. Remove the lower oil pan bolts/nuts.
  15. Important: DO NOT damage the sealing surfaces when separating the lower oil pan from the upper oil pan.

  16. Separate the lower oil pan from the upper oil pan using J 37228 .
  17. Remove the lower oil pan.
  18. If necessary, clean and inspect the lower oil pan. Refer to Lower Oil Pan Cleaning and Inspection .

Installation Procedure


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

  2. Object Number: 1334845  Size: SH
  3. Install the lower oil pan.
  4. Install the lower oil pan bolts/nuts.
  5. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 793979  Size: SH
  6. Tighten the oil pan bolts/nuts in the sequence shown.
  7. Tighten
    Tighten the bolts/nuts to 10 N·m (89 lb in).


    Object Number: 1334843  Size: SH
  8. Connect the oil level sensor electrical connector.

  9. Object Number: 328107  Size: SH
  10. If equipped with a 2WD, install the crossmember and bolts.
  11. Tighten
    Tighten the bolts to 100 N·m (74 lb ft).


    Object Number: 487521  Size: SH
  12. If equipped with a 4WD, install the crossmember and bolts.
  13. Tighten
    Tighten the bolts to 100 N·m (74 lb ft).


    Object Number: 309158  Size: SH
  14. Install the oil pan skid plate and bolts, if equipped.
  15. Tighten
    Tighten the bolts to 20 N·m (15 lb ft).

  16. Install NEW engine oil and a oil filter. Refer to Engine Oil and Oil Filter Replacement .
  17. Lower the vehicle.