Question about 2004 Kia Sorento
No, it's not normal. You are getting a high internal engine pressure from a bad valve guild or piston rings. The other thing that would cause this would be a bad PVC valve that is clogged up.
Start with the simple and replace the PVC valve and make sure the vacuum line is not kinked which would cause a restriction. Also make sure you have the right amount of engine oil in your engine.
Thank you for using fixya and good luck
Posted on Sep 08, 2010
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Posted on Jan 02, 2017
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