Dummy Plugs Leaking

icanfixall · Jul 22, 2017

Never posted here before and know very little bout the 6.0 engines but..Friend has these plugs leaking and engine wont run."another" forum told him to remove valve covers and change
the stand pipes and o rings to the plugs. Does this sound right? I know my 7.3 idi but just have no hands on experience with the 6.0. I have seen what The Diesel Treat has posted bout all the exciting work he does on these engines.

79jasper · Jul 22, 2017

That sounds right. Depends on the exact year of engine though.

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snicklas · Jul 22, 2017

What year truck? That is a very important part....

The early 6.0 does not have these, but the later 6.0's have the Stand Pipes, dummy plugs and the STC (Snap To Connect) fittings that if they leak, can cause a no start / no run condition. These are in the High Pressure Oil side of the engine / injection system.

Best analogy to the IDI, imagine the pressure generated by the IP leaks off to the low pressure side of the pump and doesn't fire the injectors.....

The one to best answer some of these questions is Ron @Dsl_Dog_Treat He has worked on several 6.0-'s....... I'm not sure the "remove the valve covers and replace them", advice is quite that simple........

79jasper · Jul 22, 2017

Haha yeah. I wholeheartedly agree with the "I'm not sure the "remove the valve covers and replace them", advice is quite that simple........"

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icanfixall · Jul 22, 2017

Thanks for all the advice. Sadly I know only what I have posted. not knowing year is a ***** too. My friend in located in Missouria and this is his sons truck. Might give the dog catcher a call tonight or tomorrow morning early..I like to "wake him up" ...

Dsl_Dog_Treat · Jul 24, 2017

@icanfixall , Gary, you can call me and can walk you thru what needs to be done if you so desire. My number is still the same. Peeling a few layers off, they aren't that bad to work on. I have actually gotten to the point of the 6.0L as my preferred engine platform to work on.

The 03 and early 04's don't have dummy plugs to be concerned about like the late 04's and up do, but both systems do have leak points on them that can be suspect and need to be checked.

A scan tool that can monitor the FICM, ICP( high pressure oil system) and IPR duty cycle are a necessity for troubleshooting these engines. Those 3 pieces of date will tell an awful lot about the health of the platform.

Matt85 · Nov 5, 2017

Hey staff member I have an 03 6.0 it has sct fitting on the stand pipes, my ficm is in sync hpop is signaling good as well as icp sensor but here's my problem, my ipr valve was registering at 85% as soon as it starts to crank I replaced it and no change, any ideas on what I should do next??
Thanks

bismic1 · Nov 7, 2017

Do an air test.

reset2 · May 26, 2019

Well I'm very new to 6.0s. My son just did a cab off head stud job and head rebuild. Now it cranks normal speed and slowly builds pressure to start. Runs fine once started. Just wondering where an "air test" is described. Thanks. By the way I'm am an IDI guy.

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bismic1 · May 26, 2019

Could be that you just need to drive it to work the air out. If you suspect a leak in the high pressure oil system, you can watch some of the videos in the Google search link below:

https://www.google.com/search?q=6.0...ome..69i57.11431j0j7&sourceid=chrome&ie=UTF-8

79jasper · May 26, 2019

You can Google 6.0 air test. Or YouTube it.
There's some very good videos by "DieselTechRon."
What year truck? You can use the icp port or the ipr port. I prefer the ipr port, as you don't have to do anything else with the system. When using the icp port, you have to supply power to the ipr to close it. Otherwise it will be a "leak." You can do this by a tool like autoenginuity, Ford ids, etc. Or can manually supply 12 volts to it for a short time.
When using the icp port 03-04 is harder to get to, because it sits at the back under the turbo.
I bought this adapter. https://www.amazon.com/dp/B078W58RNT/ref=cm_sw_r_cp_apa_i_3-06CbRYKTDV4
And this socket. https://www.amazon.com/dp/B071K4JC7R/ref=cm_sw_r_cp_apa_i_y.06CbWWJE99S
I would almost guarantee he needs to reseal the dummy plugs and stand pipes. (Pending year)

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reset2 · May 27, 2019

Thanks
I did find some videos and learned more. Now to drive it then test if it still starts slow.

Dummy Plugs Leaking

icanfixall

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79jasper

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icanfixall

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Matt85

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