i have a 94blazer, drives fine but idles rough n when i come to a stop it stalls out, changed most common things, no codes are showing and check engine lights not on either, was told its a vacum leak but cant find where, im stumped

 

could be intake vacume leak have your intake gasket changed and it should put a stop to it also there are a few ways to test this out to see if thats really where your leak is one i belive is spray starter fluid around where the intake gasket is if the engine changes in idle you have a leak try that out also spray it in small sections like 2-3 inches a time going all the way around the intake tell us how it goes?