Remove the A/C compressor bottom bolts (4) and loosen the top bolts (2, 3).
Remove the oil level indicator and tube.
Raise the vehicle. Refer to Vehicle Lifting.
Remove left and right front tire and wheel assemblies.
Remove the engine protection shield mounting bolts.
Remove the engine protection shield.
Remove the steering gear crossmember, front.
Remove the left and right wheel drive shaft.
Remove the front drive axle clutch fork assembly.
Disconnect the prop shaft from the front axle pinion yoke.
Remove the oil pan drain plug and drain the oil.
Unclip the transmission cooler lines from the engine block.
Remove the front differential bolts and set aside the front differential.
Remove 4 transmission bell housing bolts that are attached to the oil pan.
Remove the remaining oil pan bolts.
Place 2 oil pan bolts in the jack screws on the oil pan and tighten evenly to release the oil pan from the engine.
Clean and inspect the oil pan.
Important: The oil pan must be installed within 10 minutes from when sealer was applied
Apply a 3 mm (0.12 inch) bead of sealer GM PN 12378521 to the block, rather than the oil pan.
Important: When you install the oil pan, it could be shifted front or back a little which could cause a transmission alignment problem. The back of the oil pan needs to be flush with the block.
Install the oil pan, maneuvering the oil pan to clear the oil pump and screen assembly.
Install the oil pan bolts.
Inspect the oil pan alignment. Use a straight edge on the back of the block and the oil pan transmission mounting surface.
Notice: Refer to Fastener Notice in Service Precautions.
Install the oil pan bolts.
Tighten the oil pan side bolts to 25 Nm (18 ft. Lbs.).
Tighten the oil pan end bolts to 10 Nm (89 inch lbs.).
Install the 4 transmission bell housing bolts that attach to the oil pan.
Tighten bolts to 47 Nm (35 ft. Lbs.).
Install the A/C compressor 2 bottom bolts (4).
Tighten all 4 bolts to 50 Nm (37 ft. Lbs.).
Install the front differential bolts.
Tighten the front differential bolts to 85 Nm (63 ft. Lbs.).
Install the front drive axle, clutch fork assembly.
Clip transmission cooler lines to block.
Connect prop shaft to front differential.
Install the steering gear crossmember.
Install the left and right wheel drive shaft.
Install the oil pan drain plug.
Torque the oil pan drain plug to 26 Nm (19 ft. Lbs.).
Install the engine protection shield and secure with the bolts.
Tighten the engine protection shield bolts to 25 Nm (18 ft. Lbs.).
Install the left and the right front tires.
Lower the vehicle.
Important: Inspect the engine for oil leaks in order to ensure all sealing surfaces are sealed.
Service the engine with oil.
Tuesday, April 2nd, 2013 AT 12:17 AM
Why do you need to remove the oil pan? What type of problem are you having?