I have a 97 Express 6.5L and has a starting problem. It will start some days, and then somedays not. When it doesn't, it won't even crank the starter. the clocl on the radio is on then i turn the key and it goes off. I've noticed that it usually won't start at night and it will start in the day. I've been told that this is a wire connection. I have a code reader and it doesn't show anything is wrong. I will check tommarow again with the reader. Does anyone know where to start with this? Should I start to just cleaning connetions, such as battery ect.? Thanks