Why does my 1999 saturn stops running when weather is hot.but will start up after sit few minutes

Hello, when the problem occurs, checking for fuel delivery to the engine and ignition spark at the engine is the first step. One of those will be missing. Once you figure out which one, that system will require troubleshooting to get to the root cause of the concern. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops