Just got done rebuilding my engine and while I had it out I replaced the filter and the passing gear cable on the transmission. After getting it back in (we had to wait to put in fluid in until after dropping the engine and tranny in because of dipstick issues) we added fluid and now the port for the cable is leaking... anyone ever have this problem or any suggestions for fixing it while its still bolted up to the car?

Any help would be great!