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Home >> Chevrolet >> 2013 >> Sonic RS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 1.8L (LUW, LWE)) >> Repair Instructions - On Vehicle >> Cylinder Head Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Relieve fuel system pressure. Refer to Fuel Pressure Relief .
  3. Disconnect the fuel feed pipe. Refer to Fuel Feed Pipe Replacement .
  4. Disconnect EVAP purge solenoid pipes from solenoid. Refer to Evaporative Emission System Hose/Pipe Replacement .
  5. Drain the cooling system. Refer to Cooling System Draining and Filling .
  6. Remove the coolant surge tank. Refer to Radiator Surge Tank Replacement .
    7. Fig 1: Radiator Air Inlet Hose & Clamp
    GM2506800Courtesy of GENERAL MOTORS COMPANY
  7. Loosen the radiator inlet hose clamp (1) at the engine using BO-38185  pliers.
  8. Remove the radiator inlet hose (2) from the engine.
    9. Fig 2: Radiator Air Inlet/Outlet Hose & Clamp
    GM2506820Courtesy of GENERAL MOTORS COMPANY
  9. Remove the inlet and outlet heater hose clamp (1) at the engine using BO-38185  pliers.
  10. Remove the inlet hose (2) and outlet (3) from the engine.
    11. Fig 3: Throttle Body Heater Inlet Pipe
    GM2506822Courtesy of GENERAL MOTORS COMPANY
  11. Disconnect the throttle body heater inlet pipe (1).
    12. Fig 4: Ignition Coil Module And Special Tool
    GM2026537Courtesy of GENERAL MOTORS COMPANY
  12. Remove the ignition coil (2) . Refer to Ignition Coil Replacement .
  13. Disconnect PCV hose. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .
    14. Fig 5: Camshaft Cover
    GM2506823Courtesy of GENERAL MOTORS COMPANY
  14. Remove the camshaft cover (1). Refer to Camshaft Cover Replacement .
  15. Install engine support fixture. Refer to Engine Support Fixture .
  16. Remove the engine mount. Refer to Engine Mount Replacement .
    17. Fig 6: Drive Belt
    GM2512912Courtesy of GENERAL MOTORS COMPANY
  17. Remove the drive belt (1). Refer to Drive Belt Replacement .
    18. Fig 7: Engine Mount Bracket
    GM2506824Courtesy of GENERAL MOTORS COMPANY
  18. Remove the engine mount bracket (1). Refer to Engine Mount Bracket Replacement .
    19. Fig 8: Upper Timing Cover
    GM2506828Courtesy of GENERAL MOTORS COMPANY
  19. Remove the upper timing cover (1). Refer to Timing Belt Upper Front Cover Replacement .
  20. Remove the timing belt center front cover. Refer to Timing Belt Center Front Cover Replacement .
  21. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
    22. Fig 9: Crankshaft Balancer And Bolt
    GM2027569Courtesy of GENERAL MOTORS COMPANY
  22. Remove the crankshaft balancer (2). Refer to Crankshaft Balancer Replacement .
    23. Fig 10: Timing Belt Lower Front Cover
    GM2026840Courtesy of GENERAL MOTORS COMPANY
  23. Remove the timing belt lower front cover (1). Refer to Timing Belt Lower Front Cover Replacement .
    24. Fig 11: Timing Belt Tensioner & Bolt
    GM2504687Courtesy of GENERAL MOTORS COMPANY
  24. Remove the timing belt tensioner bolt (1) and the timing belt tensioner (2). Refer to Timing Belt Tensioner Replacement .
    25. Fig 12: Timing Belt
    GM2506526Courtesy of GENERAL MOTORS COMPANY
  25. Remove the timing belt (1). Refer to Timing Belt Replacement .
    26. Fig 13: Camshaft Sprocket Intake
    GM2506830Courtesy of GENERAL MOTORS COMPANY
  26. Remove the camshaft sprocket intake (1) and exhaust (2). Refer to Camshaft Sprocket Replacement .
    27. Fig 14: Timing Belt Rear Cover & Bolts
    GM2049388Courtesy of GENERAL MOTORS COMPANY
  27. Remove the timing belt rear cover (1). Refer to Timing Belt Rear Cover Replacement .
  28. Remove the exhaust manifold. Refer to Exhaust Manifold with Catalytic Converter Replacement (LUW) .
  29. Place a floor jack with block of wood under the oil pan.
  30. Remove the engine support fixture. Refer to Engine Support Fixture .
    31. Fig 15: Cylinder Head Bolts Tightening Sequence
    GM2027932Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Disconnect electrical and reposition harness and hose as necessary.

  31. Remove the ten cylinder head bolts in sequence as shown.
    • Loosen the 10 bolts 90°.
    • Loosen the 10 bolts 180°.
  32. Remove the cylinder head and place on a suitable base.
  33. Remove the cylinder head gasket.
    34. Fig 16: Intake Manifold And Bolts
    GM2026837Courtesy of GENERAL MOTORS COMPANY
  34. Remove the intake manifold bolts (1) intake manifold (2).
  35. Remove engine coolant thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement (LUW) .
  36. Remove the 2 camshaft position actuator solenoid valve. Refer Camshaft Position Actuator Solenoid Valve Replacement .
  37. Remove the 2 camshaft position sensor. Refer to Camshaft Position Sensor Replacement .
  38. Clean and inspect the cylinder head. Refer to Cylinder Head Cleaning and Inspection .
  39. For disassembly of the cylinder head, refer to Cylinder Head Disassemble .
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