One problem related to transmission not go into gear has been reported for the 1998 Kia Motor Sephia. The most recently reported issues are listed below.
My vehicle stalled on the highway due to the transmission failing in third gear. In addition, the brakes failed as well. I have experienced these issues four times to date. I had to have a total brake replacement in the past two years and the transmission was rebuilt at 6800 miles. Since the transmission was rebuilted, I have returned it four times for additional failure. The problem has not been resolved. This vehicle is defective and unsafe to operate. .