Drain the Transmission Fluid and Replace the Filter
Raise the car with ramps or a floor jack and support it with jack stands. Find the lower cover of the torque converter housing. Turn the torque converter until you find the drain plug. Place a drain pan beneath the drain hole, remove the plug and drain the fluid.
Remove the cooler lines at the transmission and flush them with compressed, low pressure air. Be careful during this step; fluid may shoot from the other cooler line.
Place a large drain pan beneath the transmission. Loosen the retaining bolts on the oil pan with a socket wrench until they are within a few turns of removal. If the seal doesn't break on its own, gently tap it with a rubber hammer. Fluid will drain from the edges of the pan.
Remove the pan retaining bolts when the fluid stops draining. There is still transmission fluid in the pan. Hold the pan carefully and drain as much as you can into the drain pan.
Scape the old gasket material from the mating surfaces on the oil pan and the transmission. Discard the old gasket. Clean the magnet in the pan. Clean the pan and the mating surfaces with a solvent and a clean, lint-free cloth. Replace the magnet and allow the pan to air dry.
Employ a socket wrench to remove the bolt that holds the filter onto the transmission. Some models may have two bolts. Pull the filter and any old seals or gaskets from the transmission. Install a new filter assembly, including any required seals or gaskets.
Put a new gasket on the oil pan and reinstall it on the transmission. Tighten the retaining bolts to 79- to 119-inch pounds with a torque wrench. Replace the cooler lines on the transmission and the drain plug on the torque converter.
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