GM 8685184
Oil Pan

A vehicle needs to be raised for a proper access to the Oil Pan replacement process. Use a catching container and suitable tools to empty the transmission oil through Oil Pan bolts you have already opened. The first step is to remove all Oil Pan attaching bolts to take away both the Oil Pan and its gasket. Review the condition of the Oil Pan while thoroughly cleaning it to confirm the surface dryness before mounting. The replacement starts by installing an entirely new Oil Pan Gasket because the sealing ribs failed before installing the new Oil Pan that may require replacing the lower pan. You should place the Oil Pan attaching bolts into position before torquing them to 10 nm (89 lb in). Check the Transmission Pan hereafter vehicle lowering and address any potential leaks by refilling the transmission to its proper mark. The fluid level requires reinspection alongside an examination of the Oil Pan Gasket for any signs of leakage.

The first step for replacing the Oil Pan requires vehicle lift and positioning it correctly followed by placing a drain pan beneath the transaxle Oil Pan. When you detach the Oil Pan bolts be aware of the sealing surfaces so you can avoid developing any oil leakage. Start by removing the bolts at the front of the Oil Pan before moving to the side bolts and finally loosening the back bolts just four turns. You can extract the Oil Pan fluid by gently hitting it with a mallet or small pry and finish the work by unbolting the rest and taking away the Oil Pan and its gasket. Perform a cleaning operation on the Oil Pan followed by an inspection process to check for damage or denting. The pan must complete drying before its installation. If the Oil Pan gasket sealing ribs show damage you must replace it before reinstalling the Oil Pan unless it proves damaged. Secure the bolts that fix the Oil Pan using a torque of 14 nm (124 inch lbs.). To complete the fix inspect the fluid level while filling the transmission along with checking for any leakage from the Oil Pan gasket.

Begin replacement of the fluid pan by elevating and sustaining the vehicle. Use a suitable container to drain transmission fluid from the Oil Pan by opening all bolts then loosening them first. The first step involves removing the attaching bolts of the Oil Pan before separating the pan from the Oil Pan Gasket. A thorough examination must identify any damage or denting on the Oil Pan which needs to be dry before its reinstallation. After inspecting the sealing ribs on the new Oil Pan Gasket install it before putting back the Oil Pan except when the bottom pan requires replacement. Guide the Oil Pan attaching bolts into place before torquing them to 10 nm (89 inch lbs.). After lowering the vehicle you should inspect the pan for leaks before adding dexron(R)-iii to the transmission to maintain the correct fluid level. Check the oil level while also looking for leakages in the Oil Pan Gasket.

When changing the Oil Pan position the vehicle properly on a hoist to prevent injuries and add assistance to the end that is not being worked on. Set up a drain pan beneath the transaxle Oil Pan when you hoist the vehicle. The technician should remove bolts from the front and sides of the Oil Pan before giving the rear bolts 4 initial turns of loosening. The procedure for removing the Oil Pan involves gentle prying while lightly tapping it with either a rubber mallet or prying tool to drain the oil. Drain the oil whereas you extract the remaining Oil Pan bolts and then remove both components and the Oil Pan gasket. Use solvent to clean all remaining old gasket debris from both transaxle case surfaces and Oil Pan gasket areas until the surfaces are dry. To perform installation start by placing the Oil Pan gasket followed by the Oil Pan then manually start the Oil Pan bolts before tightening them to 12 nm (9 ft. Lbs.). The transaxle requires dexron-iii (P/N 21019223) transaxle fluid or equivalent to reach its specified refill capacities amounting to 6.5 liters (6.9 quarts) when removing only the bottom pan and 9 liters (9.5 quarts) for full overhauls and 12.2 liters (12.9 quarts) for dry capacity. Experiment with engine operation after which you should check for leaks and ensure correct fluid levels during the testing period.

When replacing an Oil Pan for a 4t45-e automatic transaxle you should first position the vehicle properly along with supporting it adequately. After hoisting the vehicle position a drain pan below the transaxle Oil Pan. First remove front Oil Pan bolts together with the ones located on the sides and then turn the rear bolts four turns for easier removal. Completely remove the Oil Pan by using small pry tools, while preventing damages to the transaxle case and sealing points. You can assist the process by using a rubber mallet or by carefully prying the pan gently to let the oil drain. Few more bolts remain before the Oil Pan removal and Oil Pan Gasket removal process while properly cleaning off all remaining old gasket material. Use solvent to clean both transaxle case and Oil Pan Gasket surfaces before letting them dry naturally. Start the Oil Pan bolts manually then tighten them to 12 n.m (9 lb ft). The transaxle requires a refill of dexron(R) iii p/n 21019223 transaxle fluid or its equivalent to reach the specified fluid amounts of 6.5 l (6.9 qt) for bottom pan removal and 9 l (9.5 qt) for complete overhaul or 12.2 l (12.9 qt) for dry capacity at this stage. Begin the engine operation followed by warming the transaxle system then inspect all fluids for leaks while monitoring the fluid level.

Remove the remaining bolts and take off the oil pan along with the gasket.

Install the oil pan attaching bolts and tighten them to 14 Nm (124 inch lbs.).

First, raise and support the vehicle.

Loosen the oil pan bolts and drain the oil using a suitable container.

Remove the remaining bolts and take off the oil pan along with the gasket.

Recheck the fluid level and inspect the oil pan gasket for leaks.

Start the engine, warm up the transaxle, and check for leaks, then inspect for proper fluid level.

Remove the remaining bolts and the oil pan, followed by the oil pan gasket, ensuring all old gasket material is cleared.

Tighten them to 14 Nm (124 inch lbs.).

Remove the oil pan attaching bolts and take off the oil pan along with the oil pan gasket.

Take care not to damage the mating surfaces to prevent oil leaks.

Carefully pry the oil pan and lightly tap it with a rubber mallet or pry gently to allow the oil to drain.

Raise and support the vehicle.

Ensure the vehicle is properly supported and positioned, providing additional support on the opposite end from where components are being removed.

Tighten them to 14 Nm (124 inch lbs.).