GMC safari 1997, sometimes will not start. I turned the key, here a click sound but engine will not start. mechanic checked as below 1. battery was fully charged(mechanic said not a problem) 2. Alternator runnig good (start engine then disconnect the battery), 3. Once jump start a car, it should continue running until turn it off.(but sometimes battery gage was 1/4 and when driving while it point to 1/2 (it's nomal position) 4.mechanic sugestion: replaced an ignition switch but cost was too much for me. also, when it was not start then digital time clock shows like a reset positon(12:00) that mean it was disconnected with the battery

did you ever find out what was wrong with your vehicle I am having a like yours, when I start my van it runs no problem but when I turn it off for a minute and go to start it again nothing the dash lights up and nothing. I let the car sit for about an hour more or less and turn the key and away I go. Now I KNOW that the battery is good and the alternator are good the starter I don't see why it shouldn't be being that this is an on going thing and if it was the starter why is it a pattern to it not starting, is the van resetting it or something. I you or anyone can tell me what is going on please feel free to leave your thoughts. did you ever find out what was wrong with your vehicle I am having a like yours, when I start my van it runs no problem but when I turn it off for a minute and go to start it again nothing the dash lights up and nothing. I let the car sit for about an hour more or less and turn the key and away I go. Now I KNOW that the battery is good and the alternator are good the starter I don't see why it shouldn't be being that this is an on going thing and if it was the starter why is it a pattern to it not starting, is the van resetting it or something. I you or anyone can tell me what is going on please feel free to leave your thoughts.