96 pontiac grand Prix. Been sitting outside for 3

SOURCE: starts and runs 3-5 seconds and shuts down

Sounds like your security system is shutting the car down. You should be able to leave the key on for 15 minutes and it will reset itself. Make sure you are using factory keys, and they are in good condition.

SOURCE: car shuts off while driving wont start up

You need to replace your crankshaft position sensor located by the harmonic balacer. These sensors heat up and cut off the engine until the sensor cools down. This happens with age and it is not specific to GM.

SOURCE: 1997 pontiac grand prix GTP that will die while im driving

I would start by replacing the Crank sensor and the cam sensor.

SOURCE: location of ignition module on a 96 jeep grand

96 Jeep Grand Cherokee wont start.Has fuel Press No spark.Poss Ignition Module?Cant Find location.