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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1072 (Engine Mechanical - 6.6L (2 Of 5)) >> On-Vehicle Repair Instructions >> Valve Rocker Arm Cover Replacement - Upper Right Side >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  3. Remove the charged air cooler outlet duct. Refer to Charge Air Cooler Outlet Pipe Replacement .
  4. Remove the exhaust gas recirculation (EGR) cooler tube. Refer to Exhaust Gas Recirculation Valve Cooler Replacement .
  5. Remove the heater outlet hose bolt from the bracket.
  6. Position the heater outlet hose out of the way.
    7. Fig 1: View Of Oil Level Indicator Tube Bolts & Bracket Bolts
    GM1872803Courtesy of GENERAL MOTORS CORP.
  7. Remove the wiring harness retainer from the bracket.
  8. Remove the oil level indicator tube bolt (1).
  9. Remove the oil level indicator tube bracket bolts (2).
  10. Remove the bracket.
    11. Fig 2: Identifying Fuel Filter Bracket Bolts
    GM1602054Courtesy of GENERAL MOTORS CORP.
  11. Remove the fuel filter bracket bolts.
  12. Reposition the fuel filter with bracket.
  13. Remove the positive crankcase ventilation (PCV) hose/pipe. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .
    14. Fig 3: View Of Engine Harness Bracket Bolt
    GM1872907Courtesy of GENERAL MOTORS CORP.
  14. Remove the engine harness bracket bolt.
  15. Position engine harness brackets aside.
    16. Fig 4: View Of Fuel Injector Pipes
    GM1335614Courtesy of GENERAL MOTORS CORP.
  16. Prior to removing the fuel injector pipes, use compressed air to blow any debris from between the injector line and fittings. Wipe the fittings clean of debris.
  17. Spray lithium grease between the fuel injector line and fittings to assist in containing any debris during removal. Refer to Sealers, Adhesives, and Lubricants for the correct part number.
    18. NOTE: DO NOT use compressed air to clean debris from the fuel injector inlet after the fuel line is removed. Using compressed air can allow debris to enter the fuel injector inlet and damage the fuel injector.
  18. Remove the right fuel injector pipes.
    19. Fig 5: View Of Upper Valve Rocker Arm Cover & Gasket
    GM1335653Courtesy of GENERAL MOTORS CORP.
  19. Remove the upper valve rocker arm cover bolts.
  20. Remove the upper valve rocker arm cover.
  21. Remove the upper valve rocker arm cover gasket.
  22. Inspect the upper valve rocker arm cover gasket for damage, replace if necessary. Otherwise reuse the old gasket.
  23. If required, clean and inspect the upper valve rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection - Upper .
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