Hello guys, I have a 99 Peterbilt 379 with an N14 Celect + in it. I have been having fuel problems for the past month that I have been unable to resolve. The truck will run perfectly fine all day but when I shut it off and immediately try to restart it, it will not start, I have to give it a shot of starting fluid. I have gone thru 7 Donaldson fuel filters and I believe I have the correct type (P551000 & P551311). I know the engine side filter has to have the tube in the filter so it draws from the bottom. Twice after changing filter the truck ran flawless for a few days then the starting issue started happening again. I replaced the check valve at the cooling plate and have inspected it a few times as well. No fuel leaks anywhere either. Any suggestions would be appreciated.
Not sure what tube you are talking about. I had the spin on type that went on the fuel pump. Spin on type that went on remote bracket with fuel line from tanks then went to the fuel pump. I used a FS1000 filter. Also had the Davco filter system. When you change the spin on filter make sure you remove the old O-ring. This has caused a loss of prime. Another problem was the cooling plate had a pin hole leak. Do you need starting fluid to start every time? What are the conditions to start truck without starting fluid.
My recent experience with (3) Donaldson P551000, they all sucked air. I would buy a case at a time and I'm not sure what the deal was, but every one out of that case would cause me issues. Switch to Fleetguard FS1000 or CAT 256-8753 and problem immediately solved.
