I've got a new problem, and it only seems to happen when its cold outside (below 30). My truck will not get power to the ignition system. The lights will turn on, but the truck won't crank, no "Wait To Start" or WIF lights. If i go back inside and wait anywhere from 5 minutes to an hour, it will go back to normal. Haha, and get this, if I slam the hood closed, it'll get power. I've got a new battery and the connections to it are tight and clean. I don't know where to start looking. Oh, and it'll happen wether or not the block heater is plugged in. Any ideas?