My stealth is a automatic transmission, it runs good but when i put it in reverse, drive, 2, or low it wont move but the rpms still go up so I dont know if its more of a shifting sensor problem or a transmission problem. I put new transmission fluid in it and i also put some lucuse non slip and leak repair jell in it but its still not working. Im lost now any advice on what I should do? P.S. The old transmission fluid did kinda have a burnt smell to it.