LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 1.4L (LUV) >> Repair Instructions - On Vehicle >> Cylinder Head Replacement >> Removal Procedure

Removal Procedure

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the engine sight shield. Refer to Engine Sight Shield Replacement 
  3. Remove the air cleaner assembly along with the air cleaner outlet duct. Refer to Air Cleaner Assembly Replacement and Air Cleaner Outlet Duct Replacement .
  4. Remove the positive crankcase ventilation pipe. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .
  5. Remove the intake manifold. Refer to Intake Manifold Replacement .
  6. Remove the turbocharger. Refer to Turbocharger Replacement .
  7. Remove the engine control module wiring harness (1) from camshaft cover:
    Fig 1: Wiring Harnesses And Plugs
    GM2191350Courtesy of GENERAL MOTORS COMPANY
    • Disconnect the intake camshaft position sensor wiring harness plug (7).
    • Disconnect the intake camshaft position actuator solenoid valve wiring harness plug (6).
    • Disconnect the exhaust camshaft position sensor wiring harness plug (4).
    • Disconnect the exhaust camshaft position actuator solenoid valve wiring harness plug (5).
    • Disconnect the engine coolant temperature sensor wiring harness plug (3).
  8. Place a drain pan underneath the vehicle.
    Fig 2: Oil Cooler Inlet Hose, Engine Coolant Air Bleed Hose, Temperature Sensor Wiring Harness Plug And Radiator Inlet Hose
    GM2371575Courtesy of GENERAL MOTORS COMPANY
  9. Remove the oil cooler inlet hose clamp and the oil cooler inlet hose (1).
  10. Remove the radiator inlet hose clamp and the radiator inlet hose (4).
  11. Remove the engine coolant air bleed hose (2).
  12. Disconnect the engine coolant temperature sensor wiring harness plug (3).
  13. Remove the heater inlet hose from the water outlet. Refer to Heater Inlet Hose Replacement (1.4L LUV) .
  14. Remove the ground cable bolt (2) and the ground cable (1).
    Fig 3: Ground Cable And Bolt
    GM2371576Courtesy of GENERAL MOTORS COMPANY
  15. Unclip the radiator outlet hose quick connector clamp (2).
    Fig 4: Engine Coolant Thermostat Housing, Radiator Outlet House And Quick Connector Clamp
    GM2191392Courtesy of GENERAL MOTORS COMPANY
  16. Remove the radiator outlet hose (3) from the engine coolant thermostat housing (1).
  17. Remove the drive belt. Refer to Drive Belt Replacement .
  18. Remove the engine mount bracket. Refer to Engine Mount Bracket Replacement - Right Side .
  19. Remove the drain plug (1) and the seal ring (2) and allow the remaining coolant fluid to drain out of the engine block. DISCARD the seal ring.
    Fig 5: Drain Plug And Seal Ring
    GM3221574Courtesy of GENERAL MOTORS COMPANY
  20. Install the drain plug (1) and a NEW seal ring (2) and tighten the plug to 15 N.m (11 lb ft).
  21. Remove 5 engine front cover bolts (1, 2).
    Fig 6: Engine Front Cover Bolts And Water Pump Bolts
    GM2191417Courtesy of GENERAL MOTORS COMPANY
  22. Remove 3 water pump bolts (3).
  23. Install the engine mount bracket. Refer to Engine Mount Bracket Replacement - Right Side .
  24. Install the engine mount. Refer to Engine Mount Replacement - Right Side .
  25. Remove the ignition coil. Refer to Ignition Coil Replacement .
  26. Remove the camshaft cover. Refer to Camshaft Cover Replacement .
  27. Remove the 2 camshaft position actuator solenoid valves. Refer to Camshaft Position Actuator Solenoid Valve Removal .
  28. Set engine to TDC:
    1. Rotate the engine clockwise until the bore (2) in the crankshaft balancer aligns with the mark (1) on the engine front cover.
      Fig 7: Identifying Camshafts
      GM4088155Courtesy of GENERAL MOTORS COMPANY
    2. Furthermore check the camshaft position. If the camshafts (3) are not in the shown horizontal position, rotate the crankshaft until the camshafts align to the cylinder head housing edge as shown in the graphic.
    3. Remove the crankshaft bearing cap tie plate hole plug (2) and the seal ring (1).
      Fig 8: Crankshaft Bearing Cap Tie Plate Hole Plug And Seal Ring
      GM2190611Courtesy of GENERAL MOTORS COMPANY
    4. Install the EN-952  fixing pin (1) to hold the crankshaft in TDC position.
      Fig 9: Fixing Pin
      GM2190612Courtesy of GENERAL MOTORS COMPANY
      CAUTION: To ensure proper crankshaft top dead center (TDC) alignment, the retention pin should fit easily through the bore in the crankshaft tie plate and into the crankshaft. Binding of the retention pin could affect proper engine timing.
    5. Remove the timing chain tensioner plug (1) from the engine front cover.
      Fig 10: Timing Chain Tensioner Plug
      GM2191145Courtesy of GENERAL MOTORS COMPANY
    6. Install a wrench (1) to the hexagon of the intake camshaft and rotate it in direction of the arrow to apply tension to the timing chain and hold.
      Fig 11: Hexagonal Wrench Rotation Direction
      GM2191147Courtesy of GENERAL MOTORS COMPANY
      NOTE: Remove and reinstall the EN-953-A  fixing tool for this step.
    7. Install EN-955-10  pin (2) to the timing chain tensioner bore (1) to secure it in place.
      Fig 12: Timing Chain Tensioner Bore And Pin
      GM2191146Courtesy of GENERAL MOTORS COMPANY
    8. Remove the wrench from the intake camshaft.
    9. Adjust the camshafts so that the EN-953-A  fixing tool (1) can be installed.
      Fig 13: Fixing Tool
      GM2190610Courtesy of GENERAL MOTORS COMPANY
      NOTE: The fixing tool should be installed completely to both camshaft grooves without high effort.
    10. Loosen the intake camshaft sprocket bolt (2) while holding the hexagon of intake camshaft sprocket with a wrench (1).
      Fig 14: Intake Camshaft Sprocket Bolt And Hexagonal Wrench
      GM2191371Courtesy of GENERAL MOTORS COMPANY
    11. Loosen the exhaust camshaft sprocket bolt while holding with a wrench.
  29. Remove 2 upper timing chain guide bolts (1).
    Fig 15: Upper Timing Chain Guide And Bolts
    GM2190676Courtesy of GENERAL MOTORS COMPANY
  30. Remove upper timing chain guide (2).
  31. Remove the 2 camshaft sprocket bolts (2) and the 2 camshaft position exciter wheels (1).
    Fig 16: Camshaft Position Exciter Wheels And Camshaft Sprocket Bolts
    GM2191382Courtesy of GENERAL MOTORS COMPANY
  32. Remove the 2 camshaft sprockets (2) along with the timing chain (1) and place it in the engine front cover.
    Fig 17: Timing Chain And Camshaft Sprockets
    GM2191378Courtesy of GENERAL MOTORS COMPANY
  33. Loosen the 12 cylinder head bolts in the sequence as shown. Use the following procedure:
    Fig 18: Cylinder Head Bolts Loosening Sequence
    GM2190736Courtesy of GENERAL MOTORS COMPANY
    1. Loosen the cylinder head bolts 90 degrees.
    2. Loosen the cylinder head bolts 180 degrees.
  34. Remove and DISCARD the 12 cylinder head bolts.
    NOTE: Remove the EN-953-A  fixing tool to get access to the bolts 3 and 4.
  35. Move the cylinder head assembly slightly in direction of the transmission.
  36. Remove the cylinder head assembly.
    NOTE: Mind the timing chain tensioner and the timing chain guide pin.
    NOTE: A second technician is required.
  37. Remove the cylinder head gasket.
  38. Remove the assembly parts from cylinder head:
scientia non olet · About LEMON Manuals