Runs awhile then just shuts off?

Hello,

It sounds like you might have an issue with the crankshaft position sensor.
A failing crank sensor will stall the engine and you might not be able to start it back up.
With the heat and vibration from the engine the crank sensor can loose its calibration overtime and send wrong signal to the ECM, which will trigger a no start or stall.

The Crankshaft Position Sensor is mounted on the transmission bellhousing with 2 bolts (see diagram).

Here are some helpful articles:

https://www.2carpros.com/articles/how-a-crank-shaft-angle-sensor-works
https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor
https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

I have attached diagrams for your reference.

Please let me know of any questions.
Thank you.