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 >> Turbocharger Coolant Hoses/Pipes Replacement (6.6L (LB7) 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. Loosen the outlet duct clamp at the upper intake manifold cover.
  2. Remove the upper intake manifold cover from the outlet duct.
  3. Remove the upper intake manifold cover.
    4. Fig 1: View Of Upper Intake Manifold Cover, Outlet Duct & Clamp
    GM813243Courtesy of GENERAL MOTORS CORP.
  4. Drain the cooling system. Refer to Draining and Filling Cooling System (without HP2) .
  5. Disconnect the negative battery cables. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
    6. IMPORTANT: After removing the turbocharger air ducts, cover the openings with tape to prevent entry of objects.
  6. Loosen the outlet duct clamps at the turbocharger and the mass air flow/intake air temperature (MAF/IAT) sensor.
  7. Remove the outlet duct.
    8. Fig 2: View Of Outlet Duct
    GM813244Courtesy of GENERAL MOTORS CORP.
  8. Loosen the charged air cooler outlet duct to intake hose clamp (1).
    IMPORTANT: Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damage. Loosen the hose by twisting.
  9. Remove the charged air cooler duct from the intake.
    10. Fig 3: View Of Charged Air Cooler Outlet Duct & Clamps
    GM877275Courtesy of GENERAL MOTORS CORP.
  10. Remove the generator positive cable nut.
  11. Remove the positive cable from the generator.
    12. Fig 4: View Of Upper Engine
    GM666693Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the generator electrical connector (1).
    13. Fig 5: View of Generator Harness, Clip, A/C Refrigerant Switch, Dual Generator Harness Connector & A/C Compressor Clutch
    GM674573Courtesy of GENERAL MOTORS CORP.
  13. Remove the ribbed idler pulley from the generator bracket.
  14. Remove the generator bracket and position to the side.
    • The generator does not require removal.
    • The drive belt tensioner does not require removal.
    15. Fig 6: View Of Generator & Mounting Bracket
    GM669244Courtesy of GENERAL MOTORS CORP.
  15. Disconnect the fuel injection control module electrical connectors (2).
    16. Fig 7: View Of Fuel Injection Control Module Electrical Connectors
    GM744247Courtesy of GENERAL MOTORS CORP.
  16. Remove the fuel line bolts.
  17. Remove the fuel lines (2) from the fuel injection control module.
    18. Fig 8: View Of Fuel Injection Control Module Fuel Lines
    GM744237Courtesy of GENERAL MOTORS CORP.
  18. Using J 43181  , disconnect the inlet heater hose from the heater core inlet.
  19. Remove the fuel injection control module wiring harness conduit from the heater pipe.
    20. Fig 9: Identifying Heater Hose To Heater Core Fittings
    GM362171Courtesy of GENERAL MOTORS CORP.
  20. Remove the heater inlet pipe to fuel filter bolt.
  21. Remove the heater inlet pipe to thermostat housing bolt.
  22. Remove the heater inlet pipe with O-ring seal from the thermostat housing.
    23. Fig 10: View Of Heater Inlet Pipe, Thermostat Housing & Fuel Filter
    GM699325Courtesy of GENERAL MOTORS CORP.
  23. Remove the turbocharger coolant feed pipe bracket bolts.
    24. Fig 11: View Of Turbocharger Coolant Feed Pipe, Bracket & Bolts
    GM699335Courtesy of GENERAL MOTORS CORP.
  24. Remove the turbocharger coolant return hose clamps and hose.
  25. Disconnect the turbocharger coolant feed hose from the turbocharger.
    26. Fig 12: View Of Turbocharger Outlet Coolant Hose
    GM668428Courtesy of GENERAL MOTORS CORP.
  26. Remove the turbocharger coolant feed pipe nut.
  27. Remove the coolant feed pipe.
    28. Fig 13: View Of Turbocharger Coolant Feed Pipe
    GM699333Courtesy of GENERAL MOTORS CORP.
  28. Disconnect the turbocharger coolant return hose from the turbocharger coolant bypass valve.
  29. Disconnect the turbocharger coolant return hose from the turbocharger.
    30. Fig 14: View Of Turbocharger Inlet Coolant Hose
    GM668427Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals