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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1123 (Automatic Transaxle, 4T65-E Diagnostics (Troubleshooting)) >> Troubleshooting >> Automatic Transmission Oil Cooler Flushing and Flow Test (J45096) >> Forward Flush

Forward Flush

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Black Supply Hose And Clear Waste Hose
    GM1212342Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the supply and waste hoses from the vehicle cooler lines. Reverse the supply and waste hoses to provide a normal flow direction.
  2. Fig 2: Setting Main Function Switch To FLUSH Position
    GM1212343Courtesy of GENERAL MOTORS CORP.
  3. Turn the main function switch to the FLUSH position and allow machine to operate for 30 seconds.