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Do-It-Yourself Projects
Automatic Transmission Service
By Tom Morr/
Printable version
Degree of DifficultyModerate
Estimated Time180 minutes
180 minutes
Clean the gasket surfaces on both the pan and the transmission housing. Inspect the pan for metal shavings or other signs of internal damage, and then clean it with solvent.
Clean the Gasket Surfaces on Both the Pan and Transmission Housing
Remove the old filter and O-ring. The filter contains fluid, so keep the drain pan underneath.
Remove the Old Filter and O-Ring
Install the new filter, making sure that its O-ring seats in the appropriate orifice.
Install the New Filter
Attach the new gasket to the pan with oil-soluble grease -- not gasket sealer or adhesive.
Use Oil-Soluble Grease to Attach the New Gasket to the Pan
Refer to the service manual about using thread sealer on any or all of the trans-pan bolts then screw in all fasteners finger-tight.
Screw in all Fasteners Finger-tight
Torque the pan bolts to spec in a spiral pattern starting at the center. Maximum torque is often about 12 lb.-ft.
Torque the Pan Bolts to Spec
Lower the vehicle and fill the transmission with the recommended amount of fluid.
Mobil 1 Synthetic ATF
Start the vehicle, warm it up, then shut it off and check for leaks. If leak-free, run the vehicle up to operating temperature on level ground, move the shifter through all gears, return to Park, and check the dipstick while the engine idles.
Check the Dipstick After Running the Vehicle
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