Strange Stalling Problem

[nisreo]

Well I recently broke my alternator belt on the highway. I replaced it and I didnt tighten it up enough (it sqeaks). Well since I replaced the belt Ive had an odd stalling problem. It has a rough idle and stalls when I put it in gear or hit the brake sometimes. After I drive the car for a while it runs fine. No stalling, rough idle or anything. It idles at about 650rpm when I start it then up to 850-900 when its warm.

Could my loose belt be a problem? Its tight enough where my power steering works fine. Maybe I should adjust my idle?

Thanks for the help guys.

 

[leet]

650 is kind of low for an Idle speed.

 

[nisreo]

Thats only when I first start it and its running rough. When it warms up its at 900

 

[nisreo]

anyone else. im going to tighten my belt today and try it after that. If not im going to raise the idle slightly