Oil Pan: Service and Repair

Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the four bolts and the front skid plate from the vehicle (if equipped).
3. Remove the front differential assembly from the chassis (four wheel drive vehicles). Refer to Front Axle Housing Replacement.
4. Remove the crankshaft position sensor bolt and the crankshaft position sensor.
5. Place a drain pan beneath the engine oil pan to catch escaping oil.





6. Remove the engine oil drain plug (2) and gasket allowing the engine oil to drain.





7. Remove the flywheel cover (1).





8. Remove the sixteen oil pan bolts and the two oil pan nuts from the cylinder block.
9. Drop the oil pan down and remove the oil pump pick-up strainer.
10. Rotate the oil pan in order to clear the steering rack and remove the oil pan from the vehicle.
11. Clean the inside of the engine oil pan (2) and oil pump strainer screen.
12. Clean the mating surfaces of the engine oil pan (2) and the cylinder block (1).

Installation Procedure





1. Apply the silicone sealant GM PIN 12346240, or the equivalent, to the engine oil pan mating surface in a continuous bead (1).

Notice: Refer to Fastener Notice in Service Precautions.





2. Install the engine oil pump pick-up strainer (3) to the cylinder block (1). Secure the engine oil pump pick-up strainer.
^ Tighten the engine oil pump pick-up strainer bolts to 11 Nm (97 inch lbs.).
3. Install the engine oil pan (2) to the cylinder block. Secure the engine oil pan (2) with sixteen bolts and two nuts.
^ Tighten the engine oil pan nuts and bolts to 11 Nm (97 inch lbs.).





4. Install the flywheel cover (1).
^ Tighten the flywheel cover bolts to 10 Nm (89 inch lbs.).
5. Install the engine oil drain plug and gasket.
^ Tighten the engine oil drain plug to 35 Nm (26 ft. lbs.).
6. Install the crankshaft position sensor and bolt.
^ Tighten the crankshaft position sensor bolt to 11 Nm (97 inch lbs.).
7. Install the front differential assembly to the chassis (four wheel drive vehicles). Refer to Front Axle Housing Replacement.
8. Install the front skid plate (if equipped). Secure the front skid plate with the four bolts.
^ Tighten the front skid plate and bolts to 55 Nm (40 ft. lbs.).
9. Lower the vehicle.
10. Refill the engine oil according to the specifications. Refer to Capacities-Approximate Fluid.
11. Check the oil pressure upon completion of the installation.