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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transaxle - 4T80-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - On Vehicle >> Cooler Fitting to Cooler Replacement (Lower Radiator) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    IMPORTANT: The transmission oil cooler in held into position inside the radiator by the TOC fittings.
    Service one TOC fitting at a time. Removal of both TOC fittings will cause the cooler tank to fall out of position and require radiator removal to install the TOC fittings.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Position a drain pan under the vehicle.
  3. Disengage the plastic cap from the TOC fitting.

    Pull the plastic cap back along the pipe

  4. Disconnect the TOC line from the TOC fitting. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Replacement .
    5. Fig 1: Locating TOC Fitting
    GM1689716Courtesy of GENERAL MOTORS CORP.
  5. Remove the TOC fitting from the radiator.
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