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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 87 (Engine Mechanical - 3.8L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Valve Rocker Arm Cover Replacement - Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L36)  or Fuel Injector Sight Shield Replacement (L67) .
  3. Remove the drive belt tensioner. Refer to Drive Belt Tensioner Replacement .
  4. Remove the cross vehicle brace. Refer to Brace Replacement - Cross Vehicle in Body Front End.
  5. Remove the right spark plug wires from the right spark plugs. Refer to Spark Plug Wire Replacement in Engine Controls - 3.8L.
  6. Remove the EVAP purge solenoid and the brace. Refer to Evaporative Emission (EVAP) Canister Purge Solenoid Valve Replacement (L36) or Evaporative Emission (EVAP) Canister Purge Solenoid Valve Replacement (L67) in Engine Controls - 3.8L.
    7. Fig 1: Fuel Injector Sight Shield Bracket Nuts
    GM371090Courtesy of GENERAL MOTORS CORP.
  7. Remove the fuel injector sight shield bracket nuts.
  8. Remove the fuel injector sight shield bracket.
    9. Fig 2: Right Engine Lift Bracket (3.8L)
    GM153580Courtesy of GENERAL MOTORS CORP.
  9. Remove the right engine lift bracket bolt and the nut from the engine lift bracket.
  10. Remove the right engine lift bracket from the exhaust manifold.
    11. Fig 3: View Of Right Side Valve Rocker Arm Cover
    GM406021Courtesy of GENERAL MOTORS CORP.
  11. Remove the right valve rocker arm cover bolts.
    12. IMPORTANT: If the valve rocker arm cover adheres to the cylinder head, remove the valve rocker arm cover by bumping the end of the valve rocker arm cover with the palm of your hand or a soft rubber mallet.
  12. Remove the right valve rocker arm cover.
  13. Remove the right valve rocker arm cover gasket.
  14. Clean the valve rocker arm cover mating surfaces.
  15. Clean the valve rocker arm cover bolts of all thread locking adhesive.
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