01 yukon denali stalling

[tswore]

hi all, iv got a bit of a problem with the wifes daily driver. this happens to her way more than i happens to me, but this is what happens. the rig is an 01 yukon denali with the 6.0 and when she turns slowly it will stall. i think once it stalled when she stopped at a stop light. it doesnt happen every time but it happens enough to be a problem. also when it idles it seems idle very low. my cousin has a 03 denali with the same motor with a similar problem that he has not addressed yet. if any of you have some ideas or the same problem, post up. thanks