LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Mechanical - 6.6L - On Vehicle Repair Instructions) >> On-Vehicle Repair Instructions >> Valve Rocker Arm Cover Replacement - Upper Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  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. Using a pick or a small flat-bladed screw driver, remove and discard the quick connect fitting clip from the charged air cooler outlet duct.
  4. Remove the charged air cooler outlet duct from the intake.
    Fig 1: Charged Air Cooler Outlet Duct
    GM1653035Courtesy of GENERAL MOTORS CORP.
  5. Remove the exhaust gas recirculation (EGR) cooler tube. Refer to Exhaust Gas Recirculation (EGR) Valve Cooler Tube Replacement .
  6. Remove the heater outlet hose bolt from the bracket.
  7. Position the heater outlet hose out of the way.
  8. Remove the wiring harness retainer from the bracket.
    Fig 2: Wiring Harness Retainer
    GM1601448Courtesy of GENERAL MOTORS CORP.
  9. Remove the oil level indicator tube bolt.
  10. Remove the oil level indicator tube bracket bolts.
  11. Remove the bracket.
  12. Remove the fuel filter bracket bolts.
    Fig 3: Identifying Fuel Filter Bracket Bolts
    GM1602054Courtesy of GENERAL MOTORS CORP.
  13. Reposition the fuel filter with bracket.
  14. Remove the positive crankcase ventilation (PCV) hose/pipe. Refer to Crankcase Ventilation Hoses/Pipes Replacement .
  15. 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.
  16. Spray lithium grease, GM P/N 12346293 or equivalent, between the fuel injector line and fittings to assist in containing any debris during removal.
    17. 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.
    Fig 4: View Of Fuel Injector Pipes
    GM1335614Courtesy of GENERAL MOTORS CORP.
  17. Remove the right fuel injector pipes.
  18. Remove the upper valve rocker arm cover bolts.
  19. Remove the upper valve rocker arm cover.
    Fig 5: View Of Upper Valve Rocker Arm Cover & Gasket
    GM1335653Courtesy of GENERAL MOTORS CORP.
  20. Remove the upper valve rocker arm cover gasket.
  21. Inspect the upper valve rocker arm cover gasket for damage, replace if necessary. Otherwise reuse the old gasket.
  22. If required, clean and inspect the upper valve rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection - Upper .
scientia non olet · About LEMON Manuals