2013 Ram 2500 Strange pumping noise when cold.
I have a 2013 Ram 2500 Diesel. The truck has 45000miles and Ive been noticing something that seems new. Unless ive never paid attention to it. When the truck is cold, there seems to be a noise coming from the engine compartment. It almost sounds like a pumping noise of sorts. I'm not sure how else to explain it. as far as I know it goes away after a while.