i dont know if its in right section but alot of times my car will shut off in reverse as if you turned key off i got the colum shift aod on a 5.0 dunno what the problem is i cleaned IAC intake and valve cover gaskets cleaned out the intakes....its weird:toilet:
take your covers off the column,
rearrange wiring in there and then retry.
check connectors for your lock mechanism / switch cause you might be hitting a wire in there when shifting.
seems like this type of problem would come and go if its problem is where im thinking.
ill try that thanks