Just got a 7 and the idle sometimes stumbles at stop signs or lights. Any clues on what would casue it?

 

Could be a few things.

1) Dirty Air filters
2) Idle air control valve not working
3) Idle to low 850-950 normal (Fine adjust -Under throttle elbow small hole left side Corse -In between throttle cable and throttle body, up and down screw)
4) TPS is out of calabration (Not likly)
5) Vacuum leak

Hope that helps