For 1990-2009 cars

### Removal Procedure

#### Tools Required

J 39505 Torque Wrench Adapter

1. Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
2. Remove the engine mount struts from the engine. Refer to Engine Mount Strut Replacement .
3. Remove the A/C compressor mounting bolts and set the compressor aside. Refer to Compressor Replacement in HVAC Systems - Manual.
4. Install the engine support fixture. Refer to Engine Support Fixture .
5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
6. Disconnect the catalytic converter pipe from the engine right side exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust.
7. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
8. Remove the oil level sensor wiring harness connection.
9. Remove the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
10. Remove the transaxle brace from the oil pan. Refer to Transmission Brace Replacement in Automatic Transmission/Transaxle.
11. Remove the transaxle mount lower nuts. Refer to Transmission Mount Replacement in Automatic Transmission/Transaxle.
12. Remove the engine mount lower nuts. Refer to Engine Mount Replacement .
13. Raise the engine using the engine support fixture in order to gain access for oil pan removal.
14. Remove the engine mount bracket with the engine mount from the oil pan. Refer to Engine Mount Bracket Replacement .
15. Use the J 39505 in order to remove the engine right side oil pan side bolts.
16. Remove the engine left side oil pan side bolts.
17. Remove the oil pan retaining bolts.
18. Remove the oil pan.
19. Remove the oil pan gasket.
20. Clean the oil pan and the engine block gasket surface. Refer to Oil Pan Clean and Inspect .

### Installation Procedure

1. Apply a small amount of sealer GM P/N 1234579 or equivalent on either side of the rear main bearing cap, where the seal surface on the cap meets the cylinder block (1). Press sealant into the gap with putty knife.
2. Install the oil pan gasket.
3. Install the oil pan.

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.

4. Install the oil pan retaining bolts.

Tighten
Tighten the oil pan retaining bolts to 25 N·m (18 lb ft).

5. Install the engine left side oil pan side bolts.

Tighten
Tighten the oil pan side bolts to 50 N·m (37 lb ft).

6. Use the J 39505 in order to install the engine right side oil pan side bolts.

Tighten
Tighten the oil pan side bolts to 50 N·m (37 lb ft).

7. Install the engine mount bracket with the engine mount to the oil pan. Refer to Engine Mount Bracket Replacement .
8. Lower the engine using the engine support fixture.
9. Install the transaxle mount lower nuts. Refer to Transmission Mount Replacement in Automatic Transmission/Transaxle.
10. Install the engine mount lower nuts. Refer to Engine Mount Replacement .
11. Install the transaxle brace to the oil pan. Refer to Transmission Brace Replacement in Automatic Transmission/Transaxle
12. Install the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
13. Install the oil level sensor wiring harness connection.
14. Connect the catalytic converter pipe to the engine right side exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust.
15. Lower the vehicle.
16. Remove the engine support fixture. Refer to Engine Support Fixture .
17. Install the A/C compressor. Refer to Compressor Replacement in HVAC Systems - Manual.
18. Install the engine mount struts to the engine. Refer to Engine Mount Strut Replacement .
19. Fill the engine with oil. Refer to Engine Oil and Oil Filter Replacement .
20. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.