Saturn SC2 Hot Start Problem

If you do not even get a "click", then I'd suspect one of the following:

corroded/dirty or loose battery, starter, or engine block connection defective or dirty starter solenoid contacts defective starter relay defective ignition cylinder switch Bad battery (not likely, but there could be an open cell)

I'm not sure why it behaves differently when cold or warm. You also do not say if the lights, radio, blower fan, etc. all still work or not when it will not start. My guess is this may not be dependent on the temperature so keep your eye on this ... at the minimum, I'd remove, clean (with a wire brush), and tighten both the positive and negative battery posts and connectors. I'd also do the same with the engine block and starter connections as well while the battery is disconnected.

Good luck

Bob .

All other electrical functions are "normal", radio, heater, lights, dash, etc. function. Its just the "brains" between the ignition switch and the starter that seem faulty. As I said, after a few minutes more cooling time it starts normally. Battery functions the same, start turns over and start just like normal, no noticable drain on the batter. Not even a hard start. thanks.

Kim

I would suspect a bad starter, based on your description of symptoms. When the starter gets hot, the resistance in the unit goes to infinity and "locks up". Good Luck...