Originally Posted by lt173
Wonder if the block heaters in the 2010 Rams make any noise when they are plugged in. Just want to be sure it's working, and I don't have any kind of tester. I know on the 2005 you could hear almost a sound like a sizzle a few seconds after the cord was plugged in. I can't hear anything when I plug this one in. Any thoughts................thanks.
I had the same question, I can't hear anything on mine either, I know it's working though, -27 this morning, had it plugged in overnight, fired up and it idled down right away. Every other block heater in the past, I used to be able to hear it sizzle when it came to life, kinda sounded like a kettle firing up.