Problem: When starting car, it will crank, but not start. I would have to wait 1 to 3 minutes, try it several times, wait a while, then it usually starts within 5 minutes. Difficulty in Starting car would be few and far between around 50,000 miles or sooner, hesitating to start up immediately perhaps 3 to 4 times a year. Eventually, hesitation in starting began to occur more frequently, but would never happen when at repair shop. Car now has over 90,000+ miles and starting will be difficult several times a week, then would start fine for a month or two, then start back hesitating.