Hey guys I seem to have a problem. I have fuel leaking into my oil. The truck is deleted and such. There are no DTC. A couple people have told me it could be a hpfp if there are no DTC. Are these a common issue? Also people have told me could be as simple as a leaky injector line or faulty injector. any ideas from you guys? Also smoked my trans the other day so its been a rough week. :banghead:
Hey guys I seem to have a problem. I have fuel leaking into my oil. The truck is deleted and such. There are no DTC. A couple people have told me it could be a hpfp if there are no DTC. Are these a common issue? Also people have told me could be as simple as a leaky injector line or faulty injector. any ideas from you guys? Also smoked my trans the other day so its been a rough week.
Sorry about your trans :/ since no one else commented yet ill tell you what i know. From what ive seen/heard is when navistar built the engines they essentially built it around the dpf system. To cool the pistons during regen they put cooling cuts into the face of the piston along with making the piston diameter a tad smaller than spec for the cylinder bore. So what happens is fuel slips past the gap of the rings and get into your oil. Some trucks have it worse than others. How much fuel are you taking on into the mix?
From what ive seen/heard is when navistar built the engines they essentially built it around the dpf system. To cool the pistons during regen they put cooling cuts into the face of the piston along with making the piston diameter a tad smaller than spec for the cylinder bore. So what happens is fuel slips past the gap of the rings and get into your oil. Some trucks have it worse than others. How much fuel are you taking on into the mix?
My truck is at Ford again for this issue. Ford allowed me to re-up my extended warranty a second time, so the truck is fully covered including a rental F150...it has been in the shop for months over the past year. At a 3500 mile interval, my oil is overfull by 20% diesel fuel. When its at that level, the truck smokes excessively and smells like burning oil inside the cab. Last month the Ford engineer that came to assist with my issue gave me the same story as you say, poor design. The pinging that it does during a regen is the fuel pump at high pressure, when it does a regen it has higher fuel pressure and it causes the excess fuel to pass by and into the pan. frustrating that Ford acts like I'm the only one with this issue....
there is an easy test to determine if the seal in the hpfp is leaking. you drain all of the oil. leave the drain plug out overnight. run the lpfp for a couple hours with a clean pan under the oil drain. if you see fuel drips out the drain, pump is leaking. if not, bar the engine by hand one full revolution in 90* increments. watch for fuel drips from drain
My oil was beneath the max two days ago and is now overfilled it seems after a 60 mile round trip. If I drain it and refill the empty gal containers I saved and have more oil wouldn't it be safe to say there's a leak? How much fuel could leak out driving 60miles?
I have a new lift pump, injectors, hp pump. And the two hp lines from the pump along with a new pump cover and I seen all the new inj supply lines. I have to assume these were all replaced. A long with washers and such. The guy reused the rails and I'm pretty sure he reused the frp sensor which I see now it's one time use also. On another post I have where I thought I'm making oil but drained it and have less than I put in. Like a quart less? Maybe The truck wasn't sitting dead level but is now and I'm gonna watch it closely.
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