Kia Troubleshooting Questions? Ask a Mechanic
Hello, my name is***** would recommend doing a compression test first. It sounds like you have an issue with a valve seat going bad in the engine. When these are small they will show up more when the engine is cold and could seal up as the engine warms. It can also be an ignition issue, but that is not nearly as common. If you need more help please let me know.