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Home >> Ford >> 2007 >> Expedition RWD >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Engine Ignition System >> Removal And Installation >> Spark Plugs >> Removal And Installation
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Removal And Installation

  1. Remove the ignition coil-on-plug. For additional information, refer to Ignition Coil-On-Plug .
  2. CAUTION: Do not remove the spark plugs when the engine is hot or cold soaked. Spark plug thread or cylinder head damage can occur. Make sure the engine is warm (hand touch after cooling down) prior to spark plug removal.
    CAUTION: 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 from the spark plug well before removing the spark plugs.
    NOTE: If an original spark plug is used, make sure it is installed in the same cylinder from which it was taken. New spark plugs can be used in any cylinder.
  3. Remove the spark plugs.
    • To install, tighten to 34 Nm (25 lb-ft).
  4. Inspect the spark plugs. Install new spark plugs as necessary. For additional information, refer to ENGINE SYSTEM - GENERAL INFORMATION article.
  5. To install, reverse the removal procedure.