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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 134 (Engine Mechanical - 3.8L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Valve Rocker Arm Cover Replacement - Left >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. 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 (L26)  or Fuel Injector Sight Shield Replacement (L32) .
  3. Remove the left engine lift bracket bolt and nut from the engine lift bracket.
    4. Fig 1: Left Engine Lift Bracket Bolt & Nut
    GM153577Courtesy of GENERAL MOTORS CORP.
  4. Remove the left engine lift bracket from the exhaust manifold.
  5. Remove the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Upper (L26)  or Engine Mount Strut Bracket Replacement - Right Upper (L32) .
  6. Remove the left spark plug wires from the left spark plugs. Refer to Spark Plug Wire Replacement in Engine Controls - 3.8L.
  7. Remove the left spark plug wire cover from the left valve rocker arm cover.
  8. Remove the left valve rocker arm cover bolts.
    9. Fig 2: Left Valve Rocker Arm Cover Bolts
    GM406018Courtesy of GENERAL MOTORS CORP.
    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 palm of hand or with a soft rubber mallet.
  9. Remove the left valve rocker arm cover.
  10. Remove the left valve rocker arm cover gasket.
  11. Clean the valve rocker arm mating surfaces.
  12. Clean the valve rocker arm cover bolts of all thread locking adhesive.
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