dmreader
SDD Junior Member
Back in January, I blew up my HPOP and had to be towed to a shop in a very rural part of Va. They replaced the pump, gouged me for it, and ever since it has had a hard time starting. I took it back to them about a half dozen times with no resolution of the problem. They told me that everything from my glow plugs to my IDM had gone bad. I replaced the glow plugs, UVC harness and valvecover gaskets since there was one plug with poor resistance and they were the originals. The truck has ~170k on it.
I have since given up on trying to get them to help fix the problem. Prior to the pump failure, there were no problems starting the truck in any reasonable outside temperatures.
About a week ago, I took some time off work and started looking into this problem. I pulled off the plastic Powerstroke cover and removed the inspection plug to look into the reservoir. It was completely dry after sitting for just one night.
When I first go to fire up, it cranks like normal, lights, runs for a couple seconds, and then dies. The next 30 seconds to a minute are spent cranking while the reservoir fills up until the truck finally starts. For about another 30 seconds, the idle is rough, but once the air bleeds out, everything is fine.
It is acting like there is enough oil stored in the pump and the high pressure lines to get things to start, so the injector rings will probably be the last thing I change, but at my mileage, I am considering it anyway.
I am convinced that some component that the shop who did the repair touched is to blame for the problem, and I'm guessing it is a pinched, torn or dirty o-ring. My problem is that I don't know where to start and I really don't believe in throwing parts at problems.
Which path would be the most likely route for oil to drain back into the pan? Is there a stand-pipe or a check valve inside the reservoir that can get plugged up? Or is this something easier like an IPR o-ring failure preventing the bypass from being closed?
Thanks in advance for the help!
I have since given up on trying to get them to help fix the problem. Prior to the pump failure, there were no problems starting the truck in any reasonable outside temperatures.
About a week ago, I took some time off work and started looking into this problem. I pulled off the plastic Powerstroke cover and removed the inspection plug to look into the reservoir. It was completely dry after sitting for just one night.
When I first go to fire up, it cranks like normal, lights, runs for a couple seconds, and then dies. The next 30 seconds to a minute are spent cranking while the reservoir fills up until the truck finally starts. For about another 30 seconds, the idle is rough, but once the air bleeds out, everything is fine.
It is acting like there is enough oil stored in the pump and the high pressure lines to get things to start, so the injector rings will probably be the last thing I change, but at my mileage, I am considering it anyway.
I am convinced that some component that the shop who did the repair touched is to blame for the problem, and I'm guessing it is a pinched, torn or dirty o-ring. My problem is that I don't know where to start and I really don't believe in throwing parts at problems.
Which path would be the most likely route for oil to drain back into the pan? Is there a stand-pipe or a check valve inside the reservoir that can get plugged up? Or is this something easier like an IPR o-ring failure preventing the bypass from being closed?
Thanks in advance for the help!
