GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Avalanche - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E/4L85-E 🢒 Transmission Fluid Filler Tube and Seal Replacement

Removal Procedure

    Object Number: 396797 Size: SH
  1. Remove the oil level indicator.
  2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove the fill tube bracket nut.
  4. Place a drain pan under the transmission.

    5. Object Number: 396798 Size: SH
  5. Remove the fill tube.
  6. Remove the transmission fill tube seal.

Installation Procedure

    Object Number: 396798 Size: SH
  1. Install the transmission fill tube seal.
  2. Install the fill tube.
  3. Remove the drain pan from under the transmission.

    4. Object Number: 396797 Size: SH
  4. Install the fill tube bracket nut.
  5. Lower the vehicle.

    6. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  6. Install the oil level indicator.

    7. Tighten
    Tighten the nut to 47 N·m (35 lb ft).

  7. Fill the transmission to the proper level with Dexron® III transmission fluid. Refer to Transmission Fluid Check .