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Home >> Subaru >> 2009 >> Tribeca Base >> Repair and Diagnosis >> Maintenance >> Procedures >> General Information >> Periodic Maintenance Services >> Spark Plug >> Replacement

Spark Plug: Replacement

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  1. Remove the battery and battery carrier.
  2. Remove the air cleaner case.
  3. Detach the connector from ignition coil.
  4. Remove the ignition coil.
    Fig 1: Identifying Bracket And Connector
    G06341760Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the spark plug with a spark plug socket.
    Fig 2: Removing Spark Plug With Spark Plug Socket
    G04997235Courtesy of SUBARU OF AMERICA, INC.
  6. Tighten the new spark plug lightly with hand, and then secure with a spark plug socket to the specified torque.

    Recommended spark plug: NGK: SILFR6A 

    Tightening torque: 21 N.m (2.1 kgf-m, 15.5 ft-lb) 

  7. Tighten the ignition coil.

    Tightening torque: 16 N.m (1.6 kgf-m, 11.8 ft-lb) 

    NOTE:
    • Be sure to place the gasket between the cylinder head and spark plug.
    • If the torque wrench is not available, tighten the spark plug until gasket contacts cylinder head; then tighten further 1/4 to 1/2 turns.
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