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Home >> Chevrolet >> 2011 >> Impala LS, 3.9 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Mechanical - 3.5L - Repair Instructions - On Vehicle) >> Valve Rocker Arm Cover Replacement - Left Side >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Left Side Spark Plug Wires
    GM1608802Courtesy of GENERAL MOTORS CORP.
  1. Partially drain the cooling system. Refer to Cooling System Draining and Filling (LZE, LGD Static Fill) or Cooling System Draining and Filling (LZE, LGD GE47716 Fill) .
  2. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  3. Remove the oil level indicator tube. Refer to Oil Level Indicator Tube Replacement .
  4. Disconnect the left spark plug wires from the spark plugs.
  5. Remove the spark plug wire harness clip from the heater inlet and outlet front pipe bracket.
  6. Reposition the spark plug harness.
    7. Fig 2: Locating PCV Foul Air Tube
    GM1608801Courtesy of GENERAL MOTORS CORP.
  7. Remove the positive crankcase ventilation (PCV) foul air tube. Refer to Plastic Collar Quick Connect Fitting Service .
  8. Remove the left engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Left Side .
    9. Fig 3: Coolant Inlet And Outlet Hoses/Pipes
    GM1608325Courtesy of GENERAL MOTORS CORP.
  9. Reposition the heater inlet and outlet hose/pipe clamps at the engine inlet and outer pipes.
  10. Remove the heater inlet and outlet hose/pipe clip nuts at the throttle body.
  11. Remove the heater inlet and outer hoses/pipes from the engine inlet and outlet pipes.
  12. Remove the clips from the throttle body studs. Reposition the hose/pipe assembly.
    13. Fig 4: Locating Heater Inlet & Outlet Pipe To Vehicle
    GM1608994Courtesy of GENERAL MOTORS CORP.
  13. Remove the front heater outlet hose from the outlet heater pipe.
  14. Remove the heater inlet and outlet pipe bolt and stud.
  15. Remove the heater inlet and outlet pipe from the vehicle.
    16. Fig 5: Valve Rocker Arm Cover
    GM1609161Courtesy of GENERAL MOTORS CORP.
  16. Loosen the valve rocker arm cover bolts.
    17. NOTE: When removing the valve rocker arm cover, ensure the gasket stays in place attached to the cylinder head.
  17. Remove the valve rocker arm cover. If necessary, bump the end of the cover with the palm of your hand or a soft rubber mallet if the cover adheres to the cylinder head.
  18. Cut the RTV in the channel where the intake, cylinder head and valve rocker arm cover meet with a suitable tool.
  19. Remove the valve cover gasket.
  20. Clean the sealing surface on the cylinder head with degreaser.
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