97 ford escort LX died while driving and won't start?

Any ideas what is wrong? It turns over and the radio and lights work. Just tried replacing ignition power pack

Try checking your oil, some cars will die in order to save the engine when severely low on oil.

Also we had a 99 (I think) Blazer that died and wouldn't start when it got low on gas even though it had enough in it to run and drive.