1996 Ford Explorer Idling

[Explorer '96]

I have a 1996 Ford Explorer and when I let it sit running it starts to rev up on its own and shakes, on occasion it sounds like it might die. I have tested all of my sensors and have replaced, DPFE Sensor, Egr Solinoid, Air Filter, and TPS. Does anyone know how to fix it?

 

[swetrid]

Vacuum leak probably related to intake gaskets.

 

[Explorer '96]

I put in new vaccum hoses. I am thinking of adjusting the TPS...Do you think that would work? Also would checking the o2 sensors be of any help?