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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 319 (Engine Cooling System) >> Repair Instructions >> Engine Oil Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection >> Removal Procedure

Removal Procedure

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  1. Remove the plastic caps from the quick connect fittings by pulling the caps back along the pipe before installation.
  2. Fig 1: Special Tool On Transmission Oil Cooler Pipe
    GM1195053Courtesy of GENERAL MOTORS CORP.
  3. Install the DT-47731 onto the engine oil cooler (EOC) pipe, or use the J 28585
  4. Fig 2: Sliding Special Tool Toward Pipe Fitting
    GM1195054Courtesy of GENERAL MOTORS CORP.
  5. Slide the DT-47731 toward the EOC pipe fitting, or use the J 28585
  6. Fig 3: Rotating Quick-Connect On Coolant Pipe
    GM1195056Courtesy of GENERAL MOTORS CORP.
    NOTE:

    Rotate the DT-47731 to engage the EOC pipe fitting's retainer slots.

    The DT-47731 should be nearly flush with the fitting.

  7. Connect the DT-47731 onto the EOC pipe fitting.
  8. Fig 4: Rotating Quick-Connect Until Retainer Clip Rises Above Fitting Retainer Seat
    GM1195059Courtesy of GENERAL MOTORS CORP.
  9. Rotate the DT-47731 or use the J 28585 until the retainer clip (1) rises above the fitting retainer seat.
  10. Fig 5: Disengaging Pipe From Pipe Fitting
    GM1195062Courtesy of GENERAL MOTORS CORP.
  11. Pull back on the EOC pipe to disengage the pipe from the EOC pipe fitting.
  12. Remove the DT-47731 or the J 28585 from the EOC pipe.