Got the truck in the garage today, changed out the heater block cord. Heated the garage up super hot. Went to start it and it cranked over a few times and now it just clicks. I have 4 brand new batteries in the garage we tried them all, nothing. The starter is 1 year old, maybe I killed the starter the past 2 days. I find that hard to believe but anything is possible. Any ideas guys. Not plugging my truck in one cold night due to the cord being broke has turned into a 3 day fiasco.