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Removal Procedure

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The optional oil cooler is either an integral part of the radiator or a separate unit placed in front of the radiator. The cooler lines and hoses are serviceable.

    Fig 1: View Of Engine Oil Cooler Quick Connect Fittings
    GM367011Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the engine oil cooler quick connect fittings. Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting .
  2. If equipped with a 5.3L, or 6.0L engine, perform the following:
    1. Open the oil cooler hose clip located on the lower fan shroud.
    2. Remove the oil cooler hoses from the clip.
    3. Gently pull the oil cooler pipe fittings straight out from the radiator quick connect fittings.
    3. Fig 2: View Of Oil Cooler Hoses
    GM721990Courtesy of GENERAL MOTORS CORP.
  3. If equipped with a 8.1L engine, remove the oil cooler hoses from the clip
  4. Raise and suitably support the vehicle. Refer to LIFTING & JACKING THE VEHICLE .
    5. Fig 3: View Of Engine Protection Shield
    GM349061Courtesy of GENERAL MOTORS CORP.
  5. If equipped, remove the engine shield bolts.
  6. Remove the engine shield.
    7. Fig 4: View Of Oil Cooler Hose Bracket Bolt & Adapter Bolts
    GM688324Courtesy of GENERAL MOTORS CORP.
  7. If equipped with a 5.3L, or 6.0L engine, perform the following:
    1. Remove the oil cooler hose bracket bolt (1).
    2. Remove the oil cooler hose adapter bolts (2).
    3. Remove the oil cooler hose assembly and gasket. Discard the gasket.
    4. Inspect the fittings, connectors and cooler hoses for damage or distortion.
    8. Fig 5: Identifying Quick Connect Fittings
    GM721991Courtesy of GENERAL MOTORS CORP.
  8. If equipped with a 8.1L engine, perform the following:
    1. Remove the oil cooler hose bracket bolt.
    2. Disconnect the quick connect fittings (1) at the engine.
    3. Remove the oil cooler hose assembly. Discard the gasket.
    4. Inspect the fittings, connectors and cooler hoses for damage or distortion.
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