Had to replace motor on my 2016 zforce 800ex after engine failure. Everything with motor install went well but after I cant get transmission to engage. Tried adjusting the rod with no luck. Motor will not stay in gear even when using just detents of motor. At a loss currently and no appointments for months at dealer. Is there something I am missing after motor swap? This was a complete swap not a rebuild. Motor has zero miles and has moved less than 25 feet under its own power.