any information would be greatly appreciated. eg. does the starter motor sound different hot or cold,is it turning over fine but not starting.[long cranking times]help me and i will try to help you.how long has this been going on?was it after any type of work done on the car?the list goes on make it short for meI'm currently having trouble starting my 1999 C5 after it reaches operating tempatures. Does anyone have the same problem and more important, what's the solution? Any information would be greatly appreciated.