Could i need to change my transmission fluid if it is slipping ?
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2003 Kia Spectra Question: how often should i change my transmission fluid ?
Answer #1patrick mannion from Greg Solow's Engine Room, August 27, 2011, 10:34Master
The transmission may already have internal damage if it slipping but servicing the transmission would be worth trying if it is the oil that has broken down. I would change transmission oil every 30k miles. Kia as a car manufacturer put a lot of great technical information and work shop manuals on line for free for Kia owners. www.kiatechinfo.com