A one-piece type oil pan gasket is used.

1. Disconnect the battery negative cable assembly from the battery negative terminal. Refer to

   Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

   in General Information.
2. Remove the oil level indicator.
3. Raise the vehicle. Refer to General Information.
4. Support the vehicle with safety stands.
5. Drain the engine oil.
6. Remove the exhaust crossover pipe. Refer to Removing Exhaust Parts in Exhaust System.
7. Remove the flywheel inspection cover.
8. Remove the transmission oil cooler line retainer from the bracket.



9. Remove the oil pan bolts and nuts.
10. Remove the oil pan, reinforcements, and gasket.
11. Clean the gasket surfaces on the engine and oil pan.
12. Inspect the oil pan gasket for damage. Replace if necessary.

1. Apply sealant GM P/N 12346004 or the equivalent to the engine front cover to block joint. Apply the sealant for about 25 mm (1 in) in both directions from each of the four corners.



2. Apply sealant GM P/N 12346004 or the equivalent to the rear crankshaft seal to block joint. Apply the sealant for about 25 mm (1 in) in both directions from each of the four corners.
3. Install the oil pan gasket to the oil pan.



4. Install the oil pan to the engine.
5. Install the oil pan reinforcements, bolts, and nuts.

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

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.

6. Install the transmission oil cooler line retainer to the bracket.
7. Install the flywheel inspection cover.
8. Install the exhaust crossover pipe. Refer to Exhaust System.
9. Remove the safety stands.
10. Lower the vehicle.
11. Install the engine oil level indicator.
12. Connect the battery negative cable assembly to the battery negative terminal.

Tighten
Tighten the bolt to 15 N·m (11 lb ft).

13. Fill the engine crankcase with the proper quantity and grade of engine oil. Refer to Engine Oil and Engine Oil Filter Change in Maintenance and Lubrication.