How to know if your DD13 or DD15 HI Pressure pump is going bad. What to look and listen for.

Customer sent me a video when he heard his truck making a funny noise once he arrived back at the yard. At idle, you can hear what sounds like belts squealing and squeaking. The best option is to stop driving your truck, even if it just for a short distance. Have the truck towed to a shop or looked at ASAP before any catastrophic damage may occur. A bad fuel pump can take out all the injectors and may result in having the entire fuel system flushed and the fuel tanks to be removed and cleaned.