4L80-E - Automatic Transmission
Filler Tube and Seal ReplacementRemoval Procedure
1. Remove the oil level indicator from the oil level indicator tube.
2. For the gasoline engine, remove the stud securing the transmission fluid fill tube bracket to the transmission.
3. For the diesel engine, remove the transmission fluid fill tube bracket and ground wire to the transmission.
4. Raise the vehicle. Refer to Vehicle Lifting.
5. Remove any dirt from the transmission where the fluid fill tube enters the transmission case.
6. Place a drain pan under the transmission.
7. Remove the transmission fluid fill tube from the transmission. Pull the tube upward from the transmission.
8. Remove the transmission fill tube seal.
Installation Procedure
1. Install a new oil level indicator tube seal into the transmission case.
2. Install the oil level indicator tube into the seal.
Notice: Refer to Fastener Notice in Service Precautions.
3. For the gasoline engine, install the stud securing the oil level indicator tube bracket to the transmission.
^ Tighten the stud to 47 Nm (35 ft. lbs.).
4. For the diesel engine, install the bolt and nut that secures the oil level indicator tube bracket and ground wire to the transmission.
^ Tighten the bolt and the nut to 25 Nm (18 ft. lbs.).
5. Lower the vehicle.
6. Install the oil level indicator.
7. Fill the transmission to the proper level with Dexron III transmission fluid.