Technical Service Bulletins

Kia Needs a Set of Steel Sealing Balls

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Kia Needs a Set of Steel Sealing Balls

This bulletin applies to 2007-2008 Kia Sorento, 2010-2019 Soul and 2010-2019 Forte vehicles. When replacing cylinder heads on Kia 3.3 and 3.8L Lambda engines on 2007-2008 Sorento, 2.0L Nu engines for 2010-2019 Soul and 1.8 & 2.0L Nu engines for 2010-2019 Forte models, inspect the lubrication ports for installation of the steel sealing balls.

Current replacement heads may not be equipped with the required steel balls.

Identify and locate the nine lubricant passages on 3.3/3.8L engines, and three on 1.8/2.0L engines and verify that a steel ball is installed in each. If any of these passages are not plugged, insert a steel ball and drive down until fully seated. Special service tool # 0K221 2M100 can be used.

Be careful not to damage any cylinder head sealing surfaces. Support the head with a suitable wood block or other device. Refer to the appropriate service manual for ball size.

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