Hello to all, I am new to the site.. I have a question about my truck. It is a 2000 Silverado Z71 with the 5.3l engine. When I drive a short distance (about a mile or so, to the corner store) park, get my morning drink, then restart my truck and drive away, it has a stall or hesitation. It has a lack of power and does not want to go. After a short time it will suddenly get its power back and drive fine. When warm, it doesnt do this.. Any ideas?