i am missing my anti polution pump and a belt in the engine and my car stalls when its ideling now will that cause to do this also where does the pump go to i am gettin a new one tomoro i kno where it connects to but i dont know where it goes from there can anyone help??

 

On a serpentine setup the pump mounts on the passenger side of the engine just below the A/C compressor. If it is missing you will see the bracket for it.

However, it being missing would not cause the car to stall. It should have no impact on the engine running at all.