05 ram, cruize will work for a few min then quit, will not reset, shut off truck turn on and works for a few min again. i changed the small black vac line no luck. any ideas?

 

Mine was like that and one day noticed a quick flicker on emerg/parking brake light. All connections were good but a few days later social adversion took over and I adjusted the switch by bending it with my hand. Been good since.