Need Help
 

My sons 2001 LRD II has begun to stall for no reason. He pull over, waits 10 minutes and t starts right up. Have been to mechanic who has replaced, CAM sensor, Crank Sensor and relay with no success. Any thoughts?

I recall something once about fuel pump relays or wiring back at the tank??
I want to at least respond so this doesn't get lost.
Have a code scanner? I'd be curious what codes it is giving

2nd scanner
Try dumb things, battery ground cable is tight
Remember that these cars ground the ground.
Ground at fuel pimp clean and tight.
The stop and let it cool is a techman question.