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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 812 (Automatic Transmission - 4L60-E/4L65-E (Service & Replacement)) >> Diagnostic Information and Procedures >> Automatic Transmission Oil Cooler Flushing and Flow Test (J 45096) >> Forward Flush

Forward Flush

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Fig 1: Identifying Forward Flush (1 Of 2)
G02111653Courtesy 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.
    Fig 2: Identifying Forward Flush (2 Of 2)
    G02111654Courtesy of GENERAL MOTORS CORP.
  2. Turn the main function switch to the FLUSH position and allow machine to operate for 30 seconds.
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