My friend has a 91 civic sedan dx automatic. When he puts it in reverse, it just rolls like its in neutral. He said he can put it in drive and its fine. He said he check the fluid and its fine. Can anyone tell me the specific problem and/or what needs to be replaced. Hes going to drop it off at a shop tomorrow and wants to know his options and what hes getting into. Hopefully he won't need to replace the transmission unless it will be cheaper than fixing the problem.