I have a 2006 ram 3500 which died while pulling a trailer. There is 39% fuel left in tank but the fuel pump in tank can't keep enough to injector pump. When I first start engine it will run for 1/2 - 1 minute and then die. I hear five or six thumps in fuel tank area and then engine dies within 1/2 minute, I have changed fuel pump in tank and fuel filter twice and I still have this problem. I might be an auto tech but when it comes to diesels I don't know allot. I changed injectors two yrs. ago but being around auto electronics that don't mean a whole lot. Does anybody know an answer to this problem?

 

did you change the lift pump also?

 

The only fuel pumps that I know of is the fuel pump in tank and fuel gear pump on back of injector pump and then the high pressure injector pump. I was told that these three were the only pump on my truck by Dodge dealer in this area