Well the other day I left my gps charging in my truck for about a week when I went to start it battery was dead so I hooked my car up to my truck the volts on the bully dog gt read 13.4 when i cranked the truck it wouldnt start at first took a few tries craking it for about 10 seconds each time. After it started i let the truck run for about 30 mins. The next morning truck was dead again had the same issue starting it, this time i drove the truck around and let it run for about an hour. Truck started fine for about 2 weeks then this morning truck was dead after having not started it for a few days. Had a hard time jumping it again when I got off work. Also when I crank it there is a little white smoke coming from around the turbo. Mods are cai, bully dog gt, 5' straight pipe and no codes have been thrown.