Oil Pan: Service and Repair

REMOVAL PROCEDURE

IMPORTANT: Do not raise the engine block by the crankshaft balancer to perform this service procedure. Damage to the crankshaft balancer or the crankshaft may occur.






1. Disconnect the battery negative cables from the batteries.
2. Remove the oil level indicator and tube from the engine.
3. Raise the vehicle.
4. Support the vehicle with safety stands.
5. Drain the engine oil.
6. Remove the transfer case from the vehicle if equipped.
7. Remove the transmission from the vehicle.
8. Remove the clutch assembly if equipped.
9. Remove the flywheel from the crankshaft.
10. Remove the oil pan bolts from the oil pan.
11. Remove the oil pan from the engine block.
12. Remove the rear seal on the from the oil pan.






13. Clean the old RTV sealant from the oil pan and engine block.

INSTALLATION PROCEDURE






1. Apply a 2 mm (1/16 inch) bead of RTV sealant GM P/N 12345739 to the oil pan rear seal at the inside corners where the seal meets the rear crankshaft bearing cap on the engine block.
2. Install the oil pan rear seal to the rear crankshaft bearing cap before the sealer starts to dry.






3. Install the oil pan to the engine block.

NOTICE: Refer to Fastener Notice in Caution and Notices.

4. Install the oil pan bolts to the engine block.
4.1. Tighten the bolts in the following order:
4.2. Tighten the two rear bolts to 17 Nm (23 ft. lbs.).
4.3. Tighten all the other bolts to 10 Nm (89 inch lbs.).

5. Install the clutch assembly to the flywheel (if removed).
6. Install the transmission in the vehicle.
7. Install the transfer case in the vehicle if equipped.
8. Lower the vehicle.
9. Install the oil level indictor and tube to the engine block.
10. Fill the crankcase with engine oil.
11. Connect the battery negative cables to the batteries.