It appears it's low idle issue, oil pressure around 6 psi low idle, 35 psi 1000 rpm idle, Ford updated computer raise idle 1000 rpms, low oil pressure be main of lifter failure, oil getting the lifters low idle. Don't idle 7.3 extended time you this update.
The oil pressure to sufficient to dampen pumping action the lifters they compress valve springs the push rods. 7.3 a vane type, positive displacement pump moves substantial volume oil. photos attached an link an article the 7.3 some find interesting.
The Yahoo are talking is popular RV channel all RVs travels such called "RV Miles". was pointing his truck well the lifter issue, yes happening on class A's well not many this time as rack more miles idle time suspect will more, 7.3 the lifters, was different lifters .
From looks reports this other forums, problems galled de-laminated lifters camshafts to been mitigated. a supplier issue, Ford have resolved but it related the variable displacement oil pump--i.e, 5 -6 PSI idle 35 - 40 1000+ RPM, a PCM reprogram in line.
7.3L / 6.8L V8 Gasoline Engines - 7.3 Godzilla catastrophic failure - have 2021 motorhome the Ford 7.3 v8. only 2600 miles it. . Well, think a cam/lifter failure to release lot metal the lubrication system Ford doesn't a repaired engine come later other internal issues caused .
2017 - 2022 Super Duty - 7.3 Godzilla Engine Failure Thread, Post Here - you had you know a 7.3 Godzilla engine failure, post here. . Lifter/cam failure, scored cylinder walls, broken piston skirts, plug wire failure, leaky front main seals, etc… sort thing, you got! .
7.3L / 6.8L V8 Gasoline Engines - 7.3 Godzilla catastrophic failure - have 2021 motorhome the Ford 7.3 v8. only 2600 miles it. two weeks ago, lost power highway speed left on side I 95 5 hours. dealers attempted fix and was told engine has.
The standard Ford lifter size .874" the typical GM lifter in .842". step to off shelf GM size to contributing the problem suspect. certainly in Powerstroke engines. the smaller lifter bore diameter obviously to spec a smaller wheel.
