Draining Procedure

WARNING: When the transmission is at operating temperatures, take necessary precautions when removing the check/fill plug, to avoid being burned by draining fluid.

WARNING: The transmission fluid is hot. Caution must be taken to prevent personal injury when the transmission fluid drains from the transmission.

NOTE: Previous to the removing of any plug, clean the surrounding of this plug.

Fig 1: Transmission Fluid Drain Plug

Courtesy of GENERAL MOTORS COMPANY

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
Remove the engine shield. Refer to Engine Shield Replacement .
Remove the fluid drain plug (1).
Drain the transmission fluid into a suitable container.
Let the transmission fluid run out for 10 minutes and check the transmission fluid amount. If necessary, fill up the amount to the proper level with the correct fluid. Refer to Transmission General Specifications (6T30) , Transmission General Specifications (6T40/6T45/6T50) , Approximate Fluid Capacities (6T40/45/50) and Approximate Fluid Capacities (6T30) .
Check the collected transmission oil for burnt oil exhalation, metal chips and other foreign bodies. If this the fact, search for the reason caused by the transmission.
Install the fluid drain plug (1) and tighten to 12 N.m (106 lb in).
CAUTION: Refer to Fastener Caution .