Kia_Sephia_Rio_Spectra_Optima_1998-2006

Spark Plugs

Print

Inspection



Check spark plugs for the following:

  1. Broken insulator
  2.  
  3. Worn electrode
  4.  
  5. Carbon deposits
  6.  
  7. Damaged or broken gasket
  8.  
  9. Condition of the porcelain insulator at the tip of the spark plug

    Click image to see an enlarged view

    Fig. Inspecting the spark plug

  10.  
  11. Check the spark plug gap using a wire gap gauge, and adjust if necessary. The gap should be 0.039-0.043 in. (1.0-1.1mm)

    Click image to see an enlarged view

    Fig. Check and adjust the spark plug gap as necessary

  12.  

Removal & Installation



  1. Disconnect the negative battery cable.
    WARNING
    When disconnecting the cable, only pull on the plug cable boot, never on the wire itself!

  2.  
  3. Detach the spark plug cable from the spark plug or remove the ignition coil, as applicable.
  4.  
  5. Use spark plug wrench to remove the spark plug(s) from the cylinder head.
    WARNING
    Do not let any dirt or debris get into the engine through the spark plugs holes while when are removed.

  6.  

To install:

  1. Install the spark plug and tighten, as follows:
    1. 1.5L, 1.6L, 1.8L and 2.0L engines: 18-22 ft. lbs. (25-30 Nm)
    2.  

  2.  
  3. Attach the spark plug wire(s) to the spark plug(s) or install the ignition coil, as applicable.
  4.  
  5. Connect the negative battery cable.
  6.  

 
label.common.footer.alt.autozoneLogo