Leaking glow plug
Fleet Mechanic
Joined: Sep 2013
Posts: 1,303
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I'm not following leaking glow plug. Electricity does leak in the normal sense. If one or two plugs aren't functioning it can cause a rough start. Depending on ambient temp. If an entire bank is out it would sure be hard to get it fired off. If you are seeing fluid leaking from the glow plug or exhaust manifold area you may have fuel leaking past an injector. Since you said hot no start then glow plugs would not be an issue. Stand puppies and dummy plugs can cause a hot no start. Add can a stc fitting if it is an 05+ but they fail completely more often and won't start at all. You need a way to read live data to be certain it is a hpo system problem. If it is an air test will let you know what is leaking. A 6.0 is not a motor you want to just start throwing parts at. It gets expensive in a hurry.
Fleet Mechanic
Joined: Sep 2013
Posts: 1,303
Likes: 84
Hmm forgive me in lost on the thought that an electrical harness can leak oil. Must be where they go into rocker box the seals fail? Orrrrr? Just trying to wrap my head around it. I still don't see it cause a no start unless the entire bank is not working but on a hot engine like he states it should not matter should it?
Certified Thread Hijacker
Joined: Aug 2001
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Hmm forgive me in lost on the thought that an electrical harness can leak oil. Must be where they go into rocker box the seals fail? Orrrrr? Just trying to wrap my head around it. I still don't see it cause a no start unless the entire bank is not working but on a hot engine like he states it should not matter should it?
It isn't pressurized oil, just oil draining from the injectors and normal valvetrain operation
And I would likely assume the hot no-start is NOT a glowplug issue, it's an HPO issue.
Josh
Posting Guru
Joined: Mar 2010
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From: West Bloomfield, MI
Why are these so prone to fail? I had new harnesses and glow plugs installed with my stud job 2 years ago and both sides are leaking now. Do failing injectors put more than normal stress on the boots? Sorry for the dumb questions, just trying to understand the system and I'd rather not install new harnesses only to have them fail in a couple of years from the real issue.
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