Grand Prix V6-3100 3.1L MFI VIN M (1994)
Fluid - A/T: Service and Repair
Transmission Fluid Checking Procedure
Turbo Hydra-Matic 3T40 Automatic Transaxle
To check fluid, drive vehicle for at least 15 minutes to bring fluid to operating temperature (200° F). With vehicle on a level surface and engine
idling in Park and parking brake applied, the level on the dipstick should be at the "Full mark. To bring the fluid level from the ADD mark to the
FULL mark requires one pint of fluid. If vehicle cannot be driven sufficiently to bring fluid to operating temperature, the level on the dipstick
should be between the two dimples on the dipstick with fluid temperature at 70° F. Note that the two dimples are located above the FULL mark. If
additional fluid is required, use only Dexron II automatic transmission fluid.
An early change to a darker color from the usual red color and or a strong odor that is usually associated with overheated fluid is normal and
should not be considered as a positive sign of required maintenance or unit failure. When adding fluid, do not overfill, as foaming and loss of fluid
through the vent may occur as the fluid heats up. Also, if fluid level is too low, complete loss of drive may occur especially when cold, which can
cause transaxle failure.
Every 100,000 miles, the oil should be drained, the oil pan removed, the screen cleaned and fresh fluid added. For vehicles subjected to more
severe use such as heavy city traffic especially in hot weather, prolonged periods of idling or towing, this maintenance should be performed every
15,000 miles.
Turbo Hydra-Matic 4T60-E Automatic Transaxle
To check fluid, drive vehicle for at least 15 minutes to bring fluid to operating temperature (200° F). With vehicle on a level surface and engine
idling in Park and parking brake applied, the level on the dipstick should be at the FULL mark. To bring the fluid level from the ADD mark to the
FULL mark requires one pint of fluid. If vehicle cannot be driven sufficiently to bring fluid to operating temperature, the level on the dipstick
should be between the two dimples on the dipstick with fluid temperature at 70° F. Note that the two dimples are located above the FULL mark.
An early change to a darker color from the usual red color and/or a strong odor that is usually associated with overheated fluid is normal and
should not be considered as a positive sign of required maintenance or unit failure. When adding fluid, do not overfill, as foaming and loss of fluid
through the vent may occur as the fluid heats up. Also, if fluid level is too low, complete loss of drive may occur especially when cold, which can
cause transmission failure.
Every 100,000 miles, the oil should be drained, the oil pan removed, the screen cleaned and fresh fluid added. For vehicles subjected to more
severe use such as heavy city traffic especially in hot weather, prolonged periods of idling or towing, this maintenance should be performed every
15,000 miles.
