LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1003 (Engine Cooling System) >> Repair Instructions >> Exhaust Gas Recirculation (EGR) Coolant Hoses/Pipes Replacement (6.6L (LLY) Engine) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement in Engine Mechanical - 6.6L (LLY).
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement in Engine Controls - 6.6L (LLY).
    3. IMPORTANT: Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damaged. Loosen the hose by twisting.
  3. Loosen the charged air cooler outlet duct to intake hose clamp.
  4. Remove the charged air cooler outlet duct from the intake.
    5. Fig 1: View Of Charged Air Cooler Outlet Duct
    GM1334381Courtesy of GENERAL MOTORS CORP.
  5. Remove the tie strap from the electrical harness.
  6. Reposition the engine harness from the air inlet tube.
    7. Fig 2: View Of Electrical Harness Tie Strap
    GM1335476Courtesy of GENERAL MOTORS CORP.
  7. Remove the air inlet tube nuts.
  8. Remove the air inlet tube.
    9. Fig 3: View Of Air Inlet Tube
    GM1335564Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
    10. Fig 4: View Of Engine Coolant Temperature Sensor And Electrical Connector
    GM1335413Courtesy of GENERAL MOTORS CORP.
  10. Reposition the exhaust gas recirculation (EGR) coolant pipe hose clamp.
  11. Remove the EGR coolant pipe hose.
  12. Remove the EGR coolant pipe bolts.
  13. Remove the EGR coolant pipe.
    14. Fig 5: View Of Exhaust Gas Recirculation (EGR) Coolant Pipe, Hose & Bolts
    GM1335419Courtesy of GENERAL MOTORS CORP.
  14. Remove and discard the coolant pipe O-ring seal.
scientia non olet · About LEMON Manuals