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Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1238 (Maintenance) >> Chassis And Body Maintenance >> Checking A/T Fluid

Checking A/T Fluid

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. Warm up the engine.
  2. Check for any fluid leaks.
  3. Remove the tightening bolt for the ATF level gauge.
  4. Before driving, the fluid level can be checked at fluid temperatures of 30° to 50°C (86° to 122°F) using the "COLD" range on the ATF level gauge as follows:
    1. Park the vehicle on a level surface and set the parking brake.
    2. Start the engine and move the selector lever through each gear position. Shift the selector lever into the "P" position.
    3. Check the fluid level with the engine idling.
    4. Remove the ATF level gauge and wipe it clean with a lint-free paper.
      CAUTION: When wiping the fluid from the ATF level gauge, always use a lint-free paper, not a cloth.
      Fig 1: Identifying ATF Level Gauge Markings
      G02384346Courtesy of NISSAN MOTOR CO., U.S.A.
    5. Re-insert the ATF level gauge into the charging pipe until the cap contacts the top of the charging pipe as shown.
      CAUTION: To check fluid level, insert the ATF level gauge until the cap contacts the top of the charging pipe, with the gauge reversed from the normal inserted position.
    6. Remove the ATF level gauge and note the fluid level. If the fluid level is at low side of range, add fluid to the transmission through the charging pipe.
      Fig 2: Removing ATF Level Gauge
      G02384347Courtesy of NISSAN MOTOR CO., U.S.A.
      CAUTION: Do not overfill the transmission with fluid.
  5. Drive vehicle for approximately 5 minutes in urban areas.
  6. Drive the vehicle for at least five minutes or until the fluid temperature reaches approximately 65°C (149°F). Use the CONSULT-II to monitor the fluid temperature as follows:
    Fig 3: Fluid Temperature Graph
    G02384348Courtesy of NISSAN MOTOR CO., U.S.A.
    NOTE: Fluid level will be greatly affected by temperature as shown. Therefore monitor the fluid temperature data using the CONSULT-II.
    1. Connect CONSULT-II to data link connector.
    2. Select "MAIN SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
    3. Read out the value of "ATF TEMP 1".
  7. Re-check the fluid level at fluid temperatures of approximately 65°C (149°F) using the "HOT" range on the A/T fluid level gauge as shown.
    CAUTION:
    • When wiping the fluid from the ATF level gauge, always use lint-free paper, not a cloth.
      Fig 4: Identifying ATF Level Gauge Markings
      G02384349Courtesy of NISSAN MOTOR CO., U.S.A.
    • To check the fluid level, insert the ATF level gauge until the cap contacts the top of the charging pipe, with the gauge reversed from the normal inserted position as shown.
  8. Check the fluid condition.
    • If the fluid is very dark or smells burned, there may be an internal problem with the transmission. Refer to "TROUBLE DIAGNOSIS - AUTO TRANS ". Flush the transmission cooling system after repairing the transmission.
    • If the ATF contains frictional material (clutches, bands, etc.), replace the radiator and flush the transmission cooler lines using cleaning solvent and compressed air after repairing the transmission.
    Fig 5: Installing ATF Level Gauge
    G02384350Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Install the ATF level gauge in the fluid charging pipe and install the level gauge bolt. Tighten the level gauge bolt to specification.
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