Anyone own a truck that is making this noise or sound?
Update: So I went back to the dealer I got the truck from and they let me check out one of their other ED's on the lot. Same sound, same location, however my truck made more sound quality (could hear it louder, but not by much). It seems that the sound is normal, but might get louder with mileage? However, the sales rep and I could not pin-point the exact location, but he believed it was around the fuel tank as well. He mentioned that Eco Diesel is a high pressure fuel system like all diesels (running around 3000psi I believe he said), so he thought it was the fuel pump “priming” or pressurizing the lines to maintain pressure.@gadfly2 you been able to scope out another ED for comparative purposes?