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Home >> Chevrolet >> 2011 >> Impala Police >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 3.9L - Repair Instructions >> Repair Instructions >> Spark Plug Wire Replacement >> Removal Procedure
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Removal Procedure

CAUTION: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire or the wire could be damaged.
    Fig 1: View Of Left Side Spark Plug Wires
    GM1608802Courtesy of GENERAL MOTORS CORP.
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  2. Disconnect the left side spark plug wires from the spark plugs.
  3. Disconnect the left side spark plug wires from the ignition coil.
  4. If replacing only one plug wire, open the retaining clips and remove the spark plug wire.
  5. Remove the left side spark plug wire clips from the intake manifold bracket and heater inlet and outlet pipe.
  6. Remove the spark plug wire assembly.
    7. Fig 2: Right Side Spark Plug Wires & Ignition Coil
    GM1608803Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the right side spark plug wires from the right side spark plugs.
  8. Disconnect the left side spark plug wires from the ignition coil.
  9. If replacing only one plug wire, open the retaining clips and remove the spark plug wire.
  10. Remove the right side spark plug wire clip from the ignition coil bracket.
  11. Remove the spark plug wire assembly.
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