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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Mechanical - 6.6L - On Vehicle Repair Instructions) >> On-Vehicle Repair Instructions >> Charged Air Cooler Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the charged air cooler hoses/pipes. Refer to Charged Air Cooler Hoses/Pipes Replacement (Left)  or Charged Air Cooler Hoses/Pipes Replacement (Right) .
  2. Remove the radiator. Refer to Radiator Replacement (Diesel) .
  3. Remove the charged air cooler bolts.
    Fig 1: View Of Charged Air Cooler & Bolts
    GM697513Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not damage the charged air cooler fins while removing.
  4. Remove the charged air cooler.
    1. Disengage the bottom mounts from the radiator support.
    2. Remove the left side from the radiator support.
    3. Angle up the right side and rotate in order to remove.
  5. Clean the charged air cooler by flushing with mild soap and water. Do not use stream pressure to clean.
  6. Inspect the charged air cooler for the following damage:
    • Damaged fins
    • Cracked or distorted hose connections
    • Broken or loose welds
    • Leaks in the core or the tank connections
  7. Replace the charged air cooler if damage is found.
  8. Inspect the charged air cooler mounting insulators and replace if required.
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