1997 saturn sl did some errands, then wouldn't re-start

Bad ignition switch.Here's a link.Here's the part.

Check fuel pressure at the injector rail. If good, suspect crankshaft position sensor--when it fails to start, check for sparks by pulling an ignition wire off the coils and holding it close to the coil with an insulated tool while someone cranks the engine. If no sparks, replace the sensor.

We have the same exact problem!! been happening the past year (about 5 times). Finally went all the way out friday, wasnt able to start after 2 hours, left work and went back sat and finally started after an hour. got it home and it wont start again. Why isn't there a FN recall on this problem that so many LOYAL JEEP OWNERS are having?!?!?!?

Your owners manual will tell you that the anti-theft can be turned off, but doesn't tell you how (dealer only?). If it is turning over but wont start, (trying to hit and outside temp is below 32) check the coolant temp sensor. Saturns notorious for cracked sensor sending false info to computer thus flooding engine.

Did you check the alternator? if it is faulty the car will drain all the power from the battery until it goes flat

Probably the battery. Take it the chain auto parts place and they will test it for you.

remove pos cable from battery and inspect for corrosion.

Most likely your Generator has failed or you have a battery connection isssue.But based on the info you provided it sounds like the generator.You need to remove it or take the car somewhere & have the charging system tested.hope this helps

Remove plugs, clean and dry(warm) them and try again-common fault
John

i would check the starter it sounds like the started is getting hot and the solenoid on the starter is losing the connections inside and when it cools off it is making contact again