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Home >> Nissan-Datsun >> 2004 >> Frontier Base, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - RL4R01A >> Control Valve Assembly >> Disassembly

Control Valve Assembly: Disassembly

  1. Remove solenoids.
    1. Remove overdrive cancel solenoid valve and side plate from lower body.
    2. Remove O-ring from solenoid.
      Fig 1: Removing O-Ring From Solenoid
      G00770608Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Remove torque converter clutch solenoid valve from upper body.
    4. Remove O-ring from solenoid valve.
    Fig 2: Removing Torque Converter Clutch Solenoid Valve From Upper Body
    G00770609Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Disassemble upper and lower bodies.
  1. Place upper body facedown, and remove bolts, reamer bolts, side plate and support plates.
  2. Remove lower body and separator plate as a unit from upper body.
    • Be careful not to drop orifice check valve, spring and steel balls. 
    Fig 3: Removing Bolts, Reamer Bolts, Side Plate And Support Plates
    G00770610Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Place lower body facedown, and remove separator plate.
  4. Remove orifice check valve and orifice check spring.
    Fig 4: Removing Orifice Check Valve And Orifice Check Spring
    G00770611Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Check to see that steel balls are properly positioned in upper body and side plate, then remove them from upper body.
Fig 5: Checking Steel Balls Are Properly Positioned In Upper Body And Side Plate
G00770612Courtesy of NISSAN MOTOR CO., U.S.A.
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