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Home >> Hummer >> 2008 >> H3 Luxury, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 201 (Automatic Transmission - 6L50/6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - On Vehicle >> Engine Oil and Transmission Fluid Cooler Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Cooler Retainer Clips
    GM1704897Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: It is not necessary to discharge the refrigerant from the A/C system during oil cooler replacement.
    Remove the A/C condenser mounting bolts and reposition the condenser.
  1. Reposition the condenser to access the oil cooler. Refer to Condenser Replacement (Standard Cooling) or Condenser Replacement (Heavy Duty Cooling) .
  2. Use the J 41623-B  to disconnect the transmission oil cooler (TOC) lines from the TOC. See Special Tools .
  3. Disconnect the TOC lines from the TOC retainer clip.
  4. Use the DT-47731  to disconnect the engine oil cooler (EOC) lines from the cooler. See Special Tools .
  5. Disconnect the EOC lines from the cooler retainer clips.
  6. Remove the cooler mounting bolts.
  7. Remove the cooler.
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