GM 8643574 Pan, Automatic Transmission Oil

To remove the engine, first disconnect the cable from the negative battery terminal and raise the vehicle securely on jackstands. Drain the engine oil, then remove the front engine mount nuts, which are secured with large nuts and washers. Next, take off the catalytic converter splash shield and the strut rod. Remove the alternator along with its bracket bolts and the remaining engine support bracket bolt, followed by the air conditioning compressor bracket bolts. Then, take out the starter and the flywheel dust cover. Using a hoist, raise the engine and support bracket/front mount assembly slightly off the cradle, and remove the forward bolts of the engine front support bracket. The mount and support bracket can be removed as an assembly by pushing them upward until the mount studs clear the cradle. After that, remove the oil pan retaining bolts and the oil pan itself. For installation, clean the mating surfaces of the oil pan and cylinder block, apply a 1/8-inch wide bead of RTV sealant to the oil pan flange, and install the oil pan, tightening the retaining bolts to the specified torque. Install the engine front support bracket and tighten the mounting bolts, then lower the engine until the front support bracket rests on the cradle, ensuring the engine mount studs protrude through the holes. Tighten the engine mount nuts, install the flywheel dust cover and the starter, followed by the air conditioning compressor bracket and the alternator. Reattach the catalytic converter splash shield, lower the vehicle, add engine oil, and finally install the negative battery cable. Start the engine and check for leaks.