This morning i got in and started my truck (03 f-250 with the 6.0). Started right up fine, then a few seconds it started idling really rough and starting dumping out black smoke. It eventually stalled. Started right back up and ran pretty rough for awhile, it almost stalled a few times. I've only had the truck for 2 months and last night was the coolest night since ive had it, it got down to about 45. Is this normal for that tempeture? It wasnt even cool enough for the wait to start light to come on. I hate to see what it does when I have to start it and its 10 out!