Every once in a while (on cold days, or very hot days) when I come to a complete stop while in drive, the engine will struggle to keep running, and will die unless I shift out of gear before it does. It really feels like it's being lugged down, which makes me believe that one of the clutch packs isn't disengaging (most likely first as it usually happens in heavy traffic, or in parking lots). Anyone offer advice on this problem?

 

Have you checked the transmission for fluid levels?
Low can give stalling issues.
Also, when was the auto box last serviced.
Al

 

Sounds like your torque converter is going out. Happened on my old Durango. Take it to a trans shop and have them connect their reader up to it and take it for a spin.

SJ03