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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Control System & Fuel System - 3.6L - Introduction (2 Of 2)) >> Repair Instructions >> Ignition Coil Replacement - Bank 1 >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Turn the ignition OFF.
  2. Remove the engine cover. Refer to Fuel Injector Sight Shield Replacement .
    3. IMPORTANT: Do NOT disconnect the fuel pipes and/or hoses.
  3. If you are replacing the ignition coil for cylinder 5, remove and reposition the intake manifold. Perform the following steps.
    1. Disconnect the air cleaner duct from the throttle body.
    2. Disconnect the positive crankcase ventilation (PCV) hose from the right bank camshaft cover.
      3. IMPORTANT: Do NOT separate the upper intake manifold from the lower intake manifold.
    3. Remove the intake manifold bolts.
      4. Fig 1: View Of Intake Manifold Brace & Bolts
      GM1306504Courtesy of GENERAL MOTORS CORP.
    4. Remove the intake manifold brace bolts (1 and 2) and the brace.
    5. Remove the upper intake manifold. Refer to Upper Intake Manifold Replacement .
    4. Fig 2: View Of Ignition Coil Electrical Connectors
    GM887888Courtesy of GENERAL MOTORS CORP.
  4. Remove the ignition coil electrical connectors.
    5. Fig 3: View Of Ignition Coils
    GM860797Courtesy of GENERAL MOTORS CORP.
  5. Remove the ignition coil bolts.
  6. Remove the ignition coils.
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