About a month after I bought my car every time I would start my car it would crank and crank and crank and crank till finally it turned over. This got worse and worse over time but now it is just the same every time I try to start my car. I have been told it could be a cold start valve but other people say it has to be really cold outside for the cold start valve to even turn on. Please help, I need to get her running right again. It is a 1983 280zx non-turbo Please help Ive been told as I said before I have been told it has to be below freezing before the cold start valve starts working. Is this correct?