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Home >> Chevrolet >> 2011 >> Suburban K2500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 1758 (Engine Mechanical - Hybrid (LZ1) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Valve Rocker Arm Cover Replacement - Left Side >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Connector Position Assurance (CPA) Retainer, Connector And Clips
    GM1965798Courtesy of GENERAL MOTORS CORP.
  1. Remove the intake manifold cover. Refer to Upper Intake Manifold Sight Shield Replacement .
  2. Remove the connector position assurance (CPA) retainer (2).
  3. Disconnect the engine harness electrical connector (1) from the ignition coil wire harness.
  4. Remove two engine harness clips (3) from the ignition coil bracket studs.
  5. Reposition the engine harness, as necessary.
    6. Fig 2: Ignition Coils And Bracket
    GM1402016Courtesy of GENERAL MOTORS CORP.
  6. Remove the spark plug wires (724) from the ignition coils.
    • Twist each plug wire 1/2 turn.
    • Pull only on the boot in order to remove the wire from the ignition coil.
  7. Remove the ignition coil bracket studs (720).
  8. Remove the ignition coil bracket (719).
    9. Fig 3: PCV Hose
    GM1696791Courtesy of GENERAL MOTORS CORP.
  9. Remove the positive crankcase ventilation (PCV) hose.
    10. Fig 4: Valve Rocker Arm Cover
    GM1277108Courtesy of GENERAL MOTORS CORP.
  10. Loosen the valve rocker arm cover bolts.
  11. Remove the valve rocker arm cover.
    12. Fig 5: Rocker Arm Cover Gasket
    GM490696Courtesy of GENERAL MOTORS CORP.
  12. Remove and discard the old gasket (1).
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