turn ignition key sometimes no response at instrument panal and no start up.

What is your question?

I wiggle-remove and reinstall the wiring harness plugs [3 each] 2000 2500 van 5.9 and I'll hear the fuel pump engage ,fuel gage responds and start up. drive 15-30 minutes without warn stops. try to start and the gages[fuel,etc.] respond very,very slow a creep without start up. I'll go out and wiggle wiring harness and process repeats. I notice the control modular metal very hot