i have a 2006 dodge ram 3500 diesel 4x4. the dealership advised that the 3 injectors are bad on the same side. heres the question i have.. the trucks ive had in the past with similar issues have sometimes been a fault in the rail system or and electrical problem is it possible that the injectors are fine and that there is an electrical problem? the truck sitting idle has a knock and in drive there is a lack of power. there is no smoke of any kind(blow bye or otherwise) and it only has 115k miles. any help or advise would be great before dodge replaces them. the dealer said he can clean them and replace but if it doesnt work then he will start all over again. so im trying to figure the best route before i cut him loose on the truck

thanks and God bless

G