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Home >> Chevrolet >> 2004 >> Tracker 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 2.5L (LE8) (Introduction) >> Repair Instructions >> Spark Plug Replacement >> Removal Procedure
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Removal Procedure

    NOTE: This engine is equipped with an aluminum cylinder head. Allow the engine to cool before removing spark plugs. Removing the spark plugs from an engine at operating temperature may damage the spark plug threads in the cylinder head. Also be sure to clean any dirt or debris from around spark plug holes prior to removing spark plugs.
  1. Remove the two fasteners and the ignition coil cover (2) from the valve cover (1).
    2. Fig 1: View Of Ignition Coil Cover Fasteners & Valve Cover
    GM739064Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the ignition coil electrical connector.
  3. Remove the bolt (1) and the ignition coil (2) for each cylinder.
  4. Remove each spark plug (3) from the cylinder head.
  5. Inspect the condition of the spark plugs. Refer to Spark Plug Inspection .
    6. Fig 2: View Of Ignition Coil, Spark Plug & Bolt
    GM677343Courtesy of GENERAL MOTORS CORP.
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