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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (Engine Ignition System - 3.0L (4V)) >> Removal And Installation >> Spark Plugs >> Removal and Installation

Removal and Installation

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  1. Remove the ignition coils. For additional information, refer to IGNITION COIL-ON-PLUG .
  2. NOTE: Only use hand tools when removing or installing the spark plugs, or damage can occur to the cylinder head or spark plug.
    NOTE: Use compressed air to remove any foreign material in the spark plug well prior to removing the spark plugs.
  3. Remove the spark plugs.
    • To install, tighten to 15 Nm (133 lb-in).
  4. Inspect the spark plugs. For additional information, refer to ENGINE SYSTEM-GENERAL INFORMATION .
  5. To install, reverse the removal procedure.
    • Adjust the gap as necessary.
      Fig 1: Identifying Spark Plug Gap
      G06096708Courtesy of FORD MOTOR CO.