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Home >> Ford >> 2005 >> Focus ZX4 ST >> Repair and Diagnosis >> Engine Performance >> Engine Ignition System >> Removal And Installation >> Spark Plug >> Removal and Installation
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Removal and Installation

  1. Remove the ignition coil. For additional information, refer to IGNITION COIL-ON-PLUG .
  2. NOTE: Remove foreign material with compressed air.
    Fig 1: Removing Spark Plug
    G03951084Courtesy of FORD MOTOR CO.
  3. Remove the spark plug.
  4. Inspect the spark plugs.
    Fig 2: Inspecting Spark Plugs
    G03951085Courtesy of FORD MOTOR CO.
  5. Check and adjust the spark plug gap as necessary.
    Fig 3: Checking Spark Plug Gap
    G03951086Courtesy of FORD MOTOR CO.
  6. To install, reverse the removal procedure.