6R75 Automatic Transmission
Transmission Fluid Drain and RefillSpecial Tool(s):
Material:
Drain
1. With the vehicle in NEUTRAL, position it on a hoist.
2. NOTE: Some fluid leakage may occur when removing the fluid fill plug.
Remove the fluid fill plug fluid level indicator assembly located on the passenger side front portion of the transmission case. Removal of the plug will relieve any vacuum that might have built up in the transmission. This will aid in allowing the fluid pan to be easily removed when the bolts are removed.
3. Remove the transmission fluid pan and allow the fluid to drain.
4. Install the transmission fluid pan.
^ Tighten to 14 Nm (10 lb-ft).
Transmission Fluid Refill
CAUTION: This procedure contains the air purge steps required to purge air from the cooling system. This procedure is NOT intended for use with the Transmission Fluid Level Check.
CAUTION: The vehicle should not be driven if the fluid level is low as internal failure could result.
CAUTION: The fluid fill plug is located near the exhaust system. The exhaust will be extremely hot during this procedure.
CAUTION: The use of any other transmission fluid than specified, can result in the transmission failing to operate in a normal manner or transmission failure.
NOTE: If the transmission starts to slip, shifts slowly or shows signs of fluid leaking, the fluid level should be checked.
NOTE: Here is an overview of the Transmission Fluid Drain and Refill procedure.
^ Adding 3.3L (3.5 qt) of clean automatic transmission fluid to the transmission is an initial fill enabling you to start the engine.
^ The cold level range shown in the procedure allows the vehicle to be driven.
^ The vehicle should be driven to allow the transmission fluid temperature to reach 85°C-88°C (185°F-190°F) in order to purge the air from the transmission cooling system.
^ Fill the transmission fluid to the fill range on the fluid level indicator at the normal operating range 80°C-85°C (175°F-185°F).
1. NOTE: The transmission will need 3.3L (3.5 qt) of clean automatic transmission fluid added to the transmission as an initial fill if:
^ the transmission has been overhauled.
^ a new mechatronic assembly has been installed.
^ the transmission fluid pan or fluid filter have been removed.
Using the special tool, add 3.3L (3.5 qt) of clean automatic transmission fluid to the transmission through the fluid fill hole.
2. Check the transmission fluid level cold.
1 The vehicle is safe to drive if the transmission fluid is in the cold level range 32�C-43°C (90�F-110°F).
^ Using the scan tool and the engine running, place the transmission selector lever in each gear position and hold approximately 5 seconds. Place the transmission selector lever in PARK, with the engine at idle (600-750 rpm).
3. Separate the fluid level indicator from the fill plug.
4. Wipe the fluid level indicator clean. Reinstall the fluid level indicator only back into the fill plug hole to check the fluid level. Repeat this until a consistent reading is established.
5. Add clean transmission fluid to the cold level location as shown in the illustration.
6. Install the fluid fill plug.
^ Tighten to 35 Nm (26 lb-ft).
7. While driving the vehicle, use the scan tool to verify that the transmission fluid temperature has reached a temperature of 88°C (190°F). This will circulate the transmission fluid through the torque converter and the cooling system, eliminating any trapped air in the cooling system.
^ With the engine idling (600-750 rpm) in PARK, verify that the transmission fluid temperature is between 80°C-85°C (175°F-185°F).
8. Remove the fluid fill plug fluid level indicator assembly located on the passenger side front portion of the transmission case.
9. Separate the fluid level indicator from the fill plug.
10. Wipe the fluid level indicator clean. Reinstall the fluid level indicator only back into the fill plug hole to check the fluid level. Repeat this until a consistent reading is established.
11. Using the scan tool verify that the transmission fluid temperature is between 80°C-85°C (175°F-185°F). The fluid level must be at the upper level of the crosshatch mark.
12. NOTE: If the transmission fluid is not at the correct level, follow the steps for Adding Additional Transmission Fluid or Removing Transmission Fluid in this procedure.
Install the fluid fill plug.
^ Tighten to 35 Nm (26 lb-ft).
Adding Additional Transmission Fluid
NOTE: To get an accurate fluid level reading the engine should be idling (600-750 rpm) in PARK.
1. Install the special tool into the fluid fill hole.
2. Fill the special tool with approximately 0.47L (1 pt) of clean automatic transmission fluid.
3. Hang the special tool under the vehicle, upright and close to the transmission.
4. Connect the special tools.
^ Connect the open end of the fluid hose from the special tool onto the special tool from the transmission case.
5. Apply a maximum of 206.85 kPa (30 psi) to the open end of the vacuum/pressure hose from the special tool. Fluid will immediately start flowing out of the special tool into the transmission.
6. NOTE: Do not overfill the transmission. The fluid level must be at the upper level of the crosshatch mark.
Reinstall the fluid level indicator only back into the fill plug hole to check the fluid level. Repeat this until a consistent reading is established.
7. Using the scan tool verify that the transmission fluid temperature is between 80°C-85°C (175°F-185°F). The fluid level must be at the upper level of the crosshatch mark.
8. NOTE: If the transmission fluid is over full, follow the steps for Removing Transmission Fluid in this procedure.
Install the fluid fill plug.
^ Tighten to 35 Nm (26 lb-ft).
Removing Transmission Fluid
NOTE: To get an accurate fluid level reading the engine should be idling (600-750 rpm) in PARK.
1. If the transmission is overfilled, fluid must be removed to the correct level. Use the special tools to extract any excessive fluid.
2. Using the scan tool, verify that the transmission fluid temperature is between 80°C-85°C (175°F-185°F). The fluid level must be at the upper level of the crosshatch mark. Reinstall the fluid level indicator only back into the fill plug hole to check the fluid level. Repeat this until a consistent reading is established.
3. Install the fluid fill plug.
^ Tighten to 35 Nm (26 lb-ft).
