i have took my 06 ss/sc to the dealer for the third time to have the idel check when it is cold . each time i get it back they say that they updated it , well it still does it on cold days and if you are in a traffic jam . the car will all most dye out about 300rpms then come back up. im going to take it back next week again , has any one had this problem with there ss/sc?

 

yeah, I replaced my spark plugs and it smoothed out,

 

this is a big thing with cobalts. its just one of those things, no mater how many times u take to to get fixed it keeps comming back. I wouldn't worry too much about it. I don't think anyones car has actualy stalled yet

 

Mine does the same thing. I have noticed that if I watch the boost guage, it will show 15lb of vacuum when it idles rough. But the boost will drop down to 20lbs in a few minutes and the idle smoothes out.

 

thanks guys for responding , im just glad im not the only one with this problem