Just replaced the engine from a Mazda 6, got it all back together and when we started it there was a loud metal on metal sound and the engine eventually died, next start up it ran great BUT now doesn’t go into any gear.. any idea what happened? Flywheel is bolted fine.. the “range sensor” clip did have some bent prongs that we realized after and fixed but still getting no gears, engine does drop RPM but vehicle doesn’t move