Raise the car and support it securely on jackstands. Place a large drain
pan under the transmission oil pan.
Loosen the bolts along the forward edge of the pan (including the ones
in the corners at the front), as far as they will go without coming out
of the housing. Then, remove all the other pan bolts.
Carefully and slowly pull the rear edge of the pan downward to break the
seal with the gasket. Tilt the pan downward gradually, so you can drain
the fluid in a controlled manner.
When you have lowered the pan as far as it will go, support it by the
center and remove the remaining bolts. Then, lower the pan carefully and
drain the remaining fluid.
Although not required, it is a good idea to replace the transmission oil
filter whenever the fluid is drained. Unbolt and remove the oil filter and
O-ring seal, if so equipped. Discard the filter and replace with a new one.
Be sure to also use a new seal.
Wipe the pan clean of all deposits, then carefully clean both gasket surfaces.
NOTE: Do not scrape the gasket surface of the transmission
with a sharp scraper; this could scratch the surface and prevent proper
sealing.
Install a new gasket with the pan as follows:
Coat both sides of the gasket with sealer and align the gasket holes
with those in the pan. (The sealer will help keep the gasket in place
on the pan.)
Align the holes in the pan/gasket assembly with those in the transmission
case, install the bolts, and tighten very gently.
Torque the bolts in a crisscross pattern to 3.5–5 ft. lbs. (5–7
Nm).
Remove the drain pan and lower the vehicle.
Working from above, remove the dipstick and refill the transmission with
the specified amount of fluid through the oil filler pipe. (Please refer
to the Capacities chart in this section.) Install the dipstick.
Run the vehicle until the transmission reaches normal operating temperature,
and shift through all gear selector positions. Recheck the fluid level with
the engine running and replenish as necessary.
After about a day of use, crawl under the car and make sure there are
no leaks in the area of the pan gasket.
