Sometimes i put it into gear and its acts like its in neutral. other times it works fine. What is

Hello, intermittent component failure's are very difficult to diagnose. Testing must be performed when the problem is occurring to find out what is going on. You could have a simple electrical issue preventing proper selection of transmission operation. Or you could have an internal mechanical issue or electronic issue in the powertrain that requires a bigger repair. It's impossible to know without testing. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops