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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 855 (Engine Mechanical - 4.8L, 5.3L & 6.0L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Valve Rocker Arm Cover Replacement - Left >> Removal Procedure

Removal Procedure

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  1. Remove the engine sight shield, if required. Refer to ENGINE SIGHT SHIELD REPLACEMENT (4.8L, 5.3L, AND 6.0L (RPO LQ4))  or ENGINE SIGHT SHIELD REPLACEMENT (6.0L (RPO LQ9))  .
  2. Remove the connector position assurance (CPA) lock.
  3. Disconnect the main electrical connector (2) feeding the ignition coils.
  4. Remove the harness clips (1).
    Fig 1: Disconnecting Main Electrical Connector (Left)
    G02116359Courtesy of GENERAL MOTORS CORP.
  5. Reposition the engine harness, if necessary.
  6. Remove the spark plug wires 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.
  8. Remove the ignition bracket.
    Fig 2: Removing Ignition Coil Bracket & Studs (Left)
    G02116360Courtesy of GENERAL MOTORS CORP.
  9. Remove the positive crankcase ventilation (PCV) hose.
    Fig 3: Removing PCV Hose (Left)
    G02116361Courtesy of GENERAL MOTORS CORP.
  10. Loosen the valve rocker arm cover bolts.
  11. Remove the valve rocker arm cover.
    Fig 4: Removing Valve Rocker Arm Cover (Left)
    G02116362Courtesy of GENERAL MOTORS CORP.
  12. Remove and discard the old gasket (1).
  13. If required, clean and inspect the rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection  .
    Fig 5: Removing Gasket (Left)
    G02116363Courtesy of GENERAL MOTORS CORP.
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