Spark Plug: Troubleshooting

[Bank 1] 

Courtesy of KIA MOTORS AMERICA, INC.

[Bank 2] 

Courtesy of KIA MOTORS AMERICA, INC.

[Bank 1] 

Courtesy of KIA MOTORS AMERICA, INC.

[Bank 2] 

Courtesy of KIA MOTORS AMERICA, INC.

(Refer to Spark Plug - "REMOVAL AND INSTALLATION ")

Spark plugs point gap: 

1.0 - 1.1 mm (0.0393 - 0.0433 in.)

Symptom	Suspected Area	Correction
Courtesy of KIA MOTORS AMERICA, INC. Melting Electrode	Abnormal Combustion, Overheat	Replace the Spark Plugs
Courtesy of KIA MOTORS AMERICA, INC. Carbon and Foreign Matter
Courtesy of KIA MOTORS AMERICA, INC. Ring Crack	Abnormal Combustion, External Shock
Courtesy of KIA MOTORS AMERICA, INC. Vertical Crack	External Shock
Courtesy of KIA MOTORS AMERICA, INC. Overheat	Abnormal Combustion

Symptom	Suspected Area	Correction
Courtesy of KIA MOTORS AMERICA, INC. Poor Gap	Physical Damage	Replace the Spark Plugs
Courtesy of KIA MOTORS AMERICA, INC. Flash Over	Excessive Electrode Wear	Replace the Spark Plugs, Ignition Coil
Courtesy of KIA MOTORS AMERICA, INC. Corrosion/Rust	Remaining Oil Mist	Reassemble the Spark Plugs

Specification:  2 - 20 KΩ

Courtesy of KIA MOTORS AMERICA, INC.

Courtesy of KIA MOTORS AMERICA, INC.

1. Remove the spark plug (A) and ignition coil (B) from the misfiring cylinder and exchange them with one of the other cylinders.

   (Refer to Spark Plug - "REMOVAL AND INSTALLATION ")

   Courtesy of KIA MOTORS AMERICA, INC.

2. Replace the spark plugs, if misfire moves along the spark plugs.