If I let my car sit during for a day and then start it (particularly in hot weather) I have an issue with excessive cranking. Takes at least 10 seconds if not more, almost like it doesn't want to start. After its started I have no trouble starting the car back up regardless of how many times.
Also noticed the car is sometimes jerky when driving slowly through a parking lot. Watching the tachometer it does fluctuate some.
Did a Tune-Up which included Air and Fuel Filters as well as new AC Delco Iridium Plugs.