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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 72 (Automatic Transaxle - 4T80-E - Service, Diagnosis & Troubleshooting) >> Automatic Transmission Oil Cooler Flushing and Flow Test (J 45096) >> Back Flush Procedure

Back Flush Procedure

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Connecting J 45096 Adapters To Oil Cooler Supply And Return Lines
    GM1212336Courtesy of GENERAL MOTORS CORP.
  1. Connect the J 45096  adapters (1) to the vehicle's transmission oil cooler supply and return lines at the transmission. See Special Tools .
    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, rear connector of the transmission, and the clear waste hose (2) to the feed line, front 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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