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1. Remove the oil level check plug.
2. Install the DT-51190 fluid fill pan adapter (1) and, if necessary, one adapter from the DT 45096-30 cooler flush adapters (2).
3. Determine the approximate amount of fluid needed to fill the transmission, based on the repair performed. Refer to
Approximate Fluid Capacities. To avoid an under-fill condition, slightly overfill the transmission, and then allow the extra fluid to
drain out through the oil level check plug during the transmission fluid level and condition check procedure.
Note: The DT-45096 flush and flow test tool is being utilized as a convenient method to pump the fluid into the bottom pan. A
suitable hand pump may also be used instead. When using the DT-45096 flush and flow test tool, monitor the display panel to
determine the amount of fluid being pumped from the tool supply tank into the transmission.
4. Using the DT-51190 fluid fill pan adapter (1), DT-45096-30 cooler flush adapters (2), and the DT-45096 flush and flow test tool
(3), add transmission fluid through the check plug hole. Refer to Transmission Fluid Cooler Flushing and Flow Test for complete
DT-45096 operating instructions. Use the FLOW position on the main function switch to pump the fluid.
Note: Failure to start the engine and move the shift lever through the gear ranges before removing the DT-51190 fluid fill pan
adapter and DT-45096-30 cooler flush adapters from the bottom pan will result in an excess amount of fluid draining from the
check plug hole. This may lead to an under-fill condition.
5. Start the engine and move the shift lever through each gear range. Pause for at least 3 seconds in each gear range.
Caution: Check the transmission fluid level immediately after adding fluid and before vehicle operation. Do not overfill the
transmission. An overfilled transmission may result in foaming or fluid to be expelled out the vent tube when the vehicle is
operated. Overfilling will result in possible damage to the transmission.
6. With the engine still running, remove the DT-51190 fluid fill pan adapter (1), (2), and DT-45096 flush and flow test tool (3) and
then check the fluid level. Refer to Transmission Fluid Level and Condition Check.
Transmission Adaptive Functions
The Hydra-Matic® 8–Speed RWD transmission utilizes a line pressure control system during upshifts to compensate for new
transmission build variation and the normal wear of transmission components. New transmission to transmission variation and
normal wear of the apply components within the transmission over time can cause shift time (the time required to apply a clutch)
to be longer or shorter than desired. In order to compensate for these changes, the transmission control module (TCM) adjusts the
pressure commands to the various pressure control (PC) solenoids, to maintain the originally calibrated shift timing. The automatic
adjusting process is referred to as "adaptive learning" and it is used to ensure consistent shift feel plus increase transmission
durability. The TCM monitors the A/T input speed sensor (ISS) and the A/T output speed sensor (OSS) during commanded shifts to
determine if a shift is occurring too fast (harsh) or too slow (soft) and adjusts the corresponding PC solenoid signal to maintain the
set shift feel.
The purpose of the adapt function is to automatically compensate the shift quality for the various vehicle shift control systems. The
adapt function is a continuous process that will help to maintain optimal shift quality throughout the life of the vehicle.
Supermatic Transmission Controller Kit
TITLE
19371499
IR
AP1
PART NO.
5
30
SHEET
OF
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