Cool thanks

Ok guys I adjusted my idel it sounds better and runs better but my concern is the idel now In park it idels around 900 but in drive w/ a/c on its around 750-800 should I even concerned at all?? :s:

I live at 8,000 ft and until i turned up my idle my truck would die if i had the AC on and came up to a red light and had to stop.... now in gear at a red light with the AC full blast i am sitting at 500rpm's.

1997 Cummins
 

i live in Texas and my truck idles fine until the A/C is turned on and the truck is in gear. it will idle down so low that the engine will die at a complete stop. any suggestions?

I would try adjusting the idel. cuz before i adjusted mine if I went to take off and had to atop the truck would stumble or die. But once I adjusted the idel it stopped and runs better more than likely ur out of adjustment try it and see what happens (over the years it rattles loose)