When accelerating from a stop, occasionally my truck has a delay in acceleration. Typically worse when cold and consistantly reproducable within 5 minutes of cold start. My concern is primarily when turning into traffic on cold mornings. Earlier this week the delay seemed to be 2 or 3 seconds and I had to make a split-second decision to not pull out when previously I had plenty of space to get across the intersection. I have been experiencing this since I purchased the vehicle with ~24k miles on the odometer (currently more than 50k). The vehicle was brought to the dealership for inspection on this issue 2 times while under warranty. Dealer states they were unable to reproduce, but asked I leave the vehicle with them for an extended period of time (several days) for diagnosis, but without the option for a loaner car to cover my travels. I declined because it was my only vehicle at the time.