So every time it's cold outside wether I plug the truck in or not the first few minutes i drive at different Rpms the truck starts making a hissing noise and looses power then picks right back up. Then goes away after about 5 min. Does anyone else have this problem I had another 2000 that did the same thing sometimes. The truck is a 00 f250 ccsb auto with 200k. Any ideas on what this may be.