I took my truck to the dealer because my block heater quit working. At first they thought it was the heating element and scheduled another appointment because he didn't have one in stock. I take it in that time and now they say it is the chord, which they also didn't have in stock and wanted to schedule appointment #3. After he told me this wasn't covered by warranty I decided to install it myself. I quickly crawled under the truck yesterday (blizzard here) and couldn't see where it plugs into the block heater. Can anyone steer me in the right direction?