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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle - Re4F04B >> Trouble Diagnosis - Basic Inspection >> Line Pressure Test >> Line Pressure Test Procedure
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Line Pressure Test Procedure

  1. Check A/T fluid and engine oil levels. If necessary, add fluid and oil.
  2. Drive vehicle for approx. 10 minutes or until fluid and oil reach operating temperature.
    1. ATF operating temperature: 50 - 80°C (122 - 176°F) 
  3. Install pressure gauge to corresponding line pressure port.
    Fig 1: Installing Pressure Gauge To Corresponding Line Pressure Port
    G00901335Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Set parking brake and block wheels.
    • Continue to depress brake pedal fully while line pressure test is being performed at stall speed. 
    Fig 2: Setting Parking Brake
    G00901336Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Start engine and measure line pressure at idle and stall speed.
Fig 3: Measuring Line Pressure At Idle And Stall Speed
G00901337Courtesy of NISSAN MOTOR CO., U.S.A.