2007 Kia Sedona BaseFACTORY OEM SERVICE PROCEDURE

Automatic Transaxle System: Description

  1. Structure & Technical highlights
    Fig 1: Identifying Automatic Transaxle System
    G04882187Courtesy of KIA MOTORS AMERICA, INC.
  2. Variable Line Pressure Control
    • Description
      • Form the most suitable line pressure according to the vehicle driving condition
    • Special Features
      • VFS (Variable Force Solenoid) valve (For varying line pressure)
  3. Gear durability improvement and less-noisy gear development
    • Description
      • Optimal gear transmission ratio design from analyzing gears
    • Special Features
      • Apply High-strength gear material
      • Gear teeth width increased
      • Planetary gear (3 pinions → 4 pinions)
      • Less-noisy gear development
    • Effects
      • Durability improvement
      • Reduction of noise level
  4. Case/Housing intensity reinforced
    • Description
      • Case/Housing intensity reinforced
    • Special Features
      • Reducing valve added (Stabilize control pressure in shiftings)
    • Effects
      • Improved power transmission efficiency and fuel consumption
        Fig 2: Variable Line Pressure Control System Chart
        G04882188Courtesy of KIA MOTORS AMERICA, INC.
      • Converter housing intensity reinforced (Ribs added and thickness increased)
      • Most suitable stiff reinforcement through analyzing
    • Effects
      • Intensity increased and banding vibration decreased
      • NVH Performance improvement
  5. New frictional material
    • Description
      • Apply new frictional material for capacity and durability improvement
    • Special Features
      • SSP (Single Sided Plate) applied only on overdrive clutch and 2nd brake
      • Apply the next generation frictional material (BWA 6100/D 0880-88)
    • Effects
      • Thermal absorption capacity improvement
      • Energy capacity and durability improvement
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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