GM 12512670 Oil Pan

The following procedure is based on the assumption the engine is in place in the vehicle. If its been removed, simply unbolt the oil pan and detach it from the block. Disconnect the negative battery cable from the battery, then drain the oil. Remove the lower splash shield. Detach the lower bellhousing cover. Unbolt the exhaust manifold brace. Remove the radiator outlet pipe-to-oil pan bolt. On manual transaxle equipped models, remove the transaxle-to-oil pan nut and stud with a 7 mm socket. Gently pry the spacer out from between the oil pan and transaxle. Remove the oil pan-to-transaxle bolt. Remove the oil pan mounting bolts. Carefully separate the pan from the block. Don't pry between the block and pan or damage to the sealing surfaces may result and oil leaks may develop. The Crankshaft may have to be rotated to gain clearance for oil pan removal. If you need to get at the crankshaft or other lower end components, remove the oil pan baffle. Clean the sealing surfaces with lacquer thinner or acetone. Make sure the bolt holes in the block are clean. The gasket should be checked carefully and replaced with a new one if damage is noted. Minor imperfections can be repaired with ATV sealant. Use only enough sealant to restore the gasket to its original size and shape. Excess sealant may cause part misalignment and oil leaks. Reinstall the oil pan baffle, if removed. With the gasket in position, carefully hold the pan against the block and install the bolts finger tight. Tighten the bolts. Start at the center of the pan and work out toward the ends in a spiral pattern. Note that the bolts are not all tightened to the same torque figure. The remaining steps are the reverse of removal. Don't forget to refill the engine with oil before starting it. Start the engine and check carefully for oil leaks at the oil pan.