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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1913 (Automatic Transmission - 4T45-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Diagnostic Information And Procedures >> Transmission Fluid Cooler Flushing and Flow Test (J 45096) >> Back Flush Procedure

Back Flush Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of J 45096 & J 35944-440
    GM1212349Courtesy of GENERAL MOTORS CORP.
  1. Connect the J 45096:  flush and flow test tool adapters (1) to the vehicle's transmission oil cooler supply and return lines at the transmission, using J 35944-440:  flushing adapter.
    2. Fig 2: Identifying Black Supply Hose And Clear Waste Hose
    GM1212338Courtesy of GENERAL MOTORS CORP.
  2. Connect the black supply hose (1) to the return line, bottom connector of the transmission, and the clear waste hose (2) to the feed line, top connector of the transmission, to the vehicle cooler lines. This is the reverse flow - backflush direction.
    3. Fig 3: Setting Main Function Switch To FLUSH Position
    GM1212339Courtesy of GENERAL MOTORS CORP.
  3. Turn the main function switch to the FLUSH position. Allow the machine to operate for 30 seconds.
    4. Fig 4: Setting Main Function Switch To IDLE Position
    GM1212341Courtesy of GENERAL MOTORS CORP.
  4. Turn the main function switch to the IDLE position and allow the supply vessel pressure to dissipate.
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