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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 91 (Engine Mechanical - 3.6L (LF4 LGX) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Engine Front Cover Replacement (LGX) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Oil Pump Flow Control Solenoid Valve Harness Remove - Oil Pump Flow Control Solenoid Valve Harness Replacement
  2. Air Cleaner Assembly Remove - Air Cleaner Assembly Replacement (LGX)
    3. Fig 1: Water Pump Pulley (LGX)
    GM4089437Courtesy of GENERAL MOTORS COMPANY
  3. Water Pump Pulley- Remove - Water Pump Pulley Replacement (LGX)
    4. Fig 2: Camshaft Cover - Left Side
    GM4122254Courtesy of GENERAL MOTORS COMPANY
  4. Camshaft Cover - Left Side- Remove - Camshaft Cover Replacement - Left Side (LGX) 
    5. Fig 3: Camshaft Cover - Right Side
    GM4140421Courtesy of GENERAL MOTORS COMPANY
  5. Camshaft Cover - Right Side- Remove - Camshaft Cover Replacement - Right Side (LGX) 
  6. Drain the cooling system. Cooling System Draining and Filling (Static)Cooling System Draining and Filling (GE 47716)
  7. Engine Oil Cooler Adapter Remove - Engine Oil Cooler Adapter Replacement (LGX)
    8. Fig 4: Water Outlet (LGX)
    GM4088597Courtesy of GENERAL MOTORS COMPANY
  8. Remove the water outlet (2) with the radiator hose and reposition aside. Water Outlet Replacement (LGX)
  9. Crankshaft Balancer Remove - Crankshaft Balancer Replacement (LGX) 
  10. Engine Coolant Air Bleed Pipe Remove - Engine Coolant Air Bleed Pipe Replacement (LGX)
    11. Fig 5: Engine Coolant Temperature Sensor Electrical Connector
    GM4420644Courtesy of GENERAL MOTORS COMPANY
  11. Engine Coolant Temperature Sensor Electrical Connector - Disconnect
  12. Remove the engine ground fastener and ground cable attached to the front cover.
  13. Detach retainers and position engine harness aside.
  14. Oil Pump Flow Control Solenoid Valve Electrical Connector Disconnect
  15. Water Pump Inlet Pipe Remove - Water Pump Inlet Pipe Replacement (LGX)
  16. Water Pump Remove - Water Pump Replacement (LGX)
    17. Fig 6: Engine Front Cover (LGX)
    GM3951808Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    It is not necessary to remove the upper oil pan when servicing the front cover in vehicle.

  17. Engine Front Cover Remove - Engine Front Cover Removal (LGX)
  18. Disassemble the engine front cover. Engine Front Cover Disassemble (LGX)
    19. NOTE:

    Do NOT use sharp and/or metal gasket scrapers in order to clean the sealing surfaces.

    NOTE:

    Insert a piece of cardboard between the oil pan front and the oil pump in order to prevent any contaminants from falling into the oil pan.

  19. Carefully clean the engine front cover sealing surfaces. Engine Front Cover Cleaning and Inspection (LGX)
  20. Use compressed air in order to remove any engine coolant from the engine cooling passages and from the top of the oil pan scraper (windage tray).
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