GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1999 🢒 Catera 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Changing Fluid and Oil Filter

Removal Procedure
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    2. Object Number: 158391 Size: SH
  2. Place drain pan under pan
  3. Remove oil pan bolts from front and sides only.
  4. Loosen the rear oil pan bolts approximately four turns.
  5. Lightly tap the oil pan with a rubber mallet or pry to drain the fluid from main case.
  6. Remove the oil pan bolts from rear oil pan and gasket.
  7. Remove front oil pan bolts leaving one corner bolt in loosely.
  8. Lightly tap oil pan with rubber mallet or pry to drain fluid.
  9. Remove the following remaining components:
    10. • The front oil pan bolts
    • The oil pan
    • The gasket
  10. Remove the oil filter bolts and filter.
  11. Clean the following components:
    12. • The transmission case
    • The front adapter case
    • The oil pan gasket surfaces with solvent
    • Air dry
    • All traces of gasket material must be removed

Installation Procedure
  1. Install the gasket.
  2. Install the oil filter.

    3. Object Number: 158359 Size: SH
  3. Install the bolts.

    4. 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.

    Tighten
    Tighten the transmission oil filter bolts to 20 N·m (15 lb ft).


    Object Number: 158391 Size: SH
  4. Install the front oil pan.
  5. Install the front oil pan gasket.
  6. Install the front oil pan bolts.

    7. Tighten
    Tighten the front oil pan bolts to 11 N·m (96 lb in).

  7. Install the following components:
    8. • Install the pan
    • Install the gasket
    • Install the bolts

    Tighten
    Tighten the oil pan bolts to 11 N·m (96 lb in).


    Object Number: 158359 Size: SH
  8. Refill the transmission with DEXRON® III through oil pan fill plug on the side of the (main case) oil pan. Fill the transmission to lower edge of oil pan fill. Fill plug opening using and oil suction gun.

    9. Tighten
    Tighten the oil pan fill plug to 45 N·m (33 lb ft).

  9. Lower the vehicle.
  10. Check the transmission fluid level. Refer to Transmission Fluid Check .