Well my problem is when I come to a stop light or stop sign and I'm sitting still in drive the motor will start act up almost like it's running out of gas and it will die unless I put it in neutral or park..or anything but drive. When I do that it idles fine. Also if I put my foot down the engine will delay for a second before the power kicks in. Everyone I've talked to has told me it's a vacuum leak but I don't know the first thing about it so I don't know where to look for the problem.