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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Automatic Transmission (Re0F10J) (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid)) >> Basic Inspection >> CVT Fluid Cooler System >> Cleaning >> CVT Fluid Cooler Cleaning Procedure

CVT Fluid Cooler Cleaning Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
  1. Position an oil pan under the transaxle's inlet and outlet cooler hoses.
  2. Identify the inlet and outlet fluid cooler hoses.
  3. Disconnect the fluid cooler inlet and outlet rubber hoses from the steel cooler tubes or bypass valve.
    G04216625Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE:

    Replace the cooler hoses if rubber material from the hose remains on the tube fitting.

  4. Allow any CVT fluid that remains in the cooler hoses to drain into the oil pan.
  5. Insert the extension adapter hose of a can of Transmission Cooler Cleaner into the cooler outlet hose.
    G04216626Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Wear safety glasses and rubber gloves when spraying the Transmission Cooler Cleaner.
    • Spray Transmission Cooler Cleaner only with adequate ventilation.
    • Avoid contact with eyes and skin.
    • Never breath vapors or spray mist.
  6. Hold the hose and can as high as possible and spray Transmission Cooler Cleaner in a continuous stream into the cooler outlet hose until CVT fluid flows out of the cooler inlet hose for 5 seconds.
  7. Insert the tip of an air gun into the end of the cooler outlet hose.
    G04216627Courtesy of NISSAN NORTH AMERICA, INC.
  8. Wrap a shop rag around the air gun tip and end of the cooler outlet hose.
  9. Blow compressed air regulated to 5 to 9 kg/cm2 (70 to 130 psi) through the cooler outlet hose for 10 seconds to force out any remaining CVT fluid.
  10. Repeat steps 5 through 9 three additional times.
  11. Position an oil pan under the banjo bolts that connect the CVT fluid cooler steel lines to the transaxle.
  12. Remove the banjo bolts.
  13. Flush each steel line from the cooler side back toward the transaxle by spraying Transmission Cooler Cleaner in a continuous stream for 5 seconds.
  14. Blow compressed air regulated to 5 to 9 kg/cm2 (70 to 130 psi) through each steel line from the cooler side back toward the transaxle for 10 seconds to force out any remaining CVT fluid.
  15. Ensure all debris is removed from the steel cooler lines.
  16. Ensure all debris is removed from the banjo bolts and fittings.
  17. Perform "CVT FLUID COOLER DIAGNOSIS PROCEDURE".
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