P0678 Ford 6.0 Diesel Glow Plug Repair

2005 Ford Excursion with a 6.0 diesel had two codes pop up P0678 cylinder 8 glow plug open circuit and P0672 cylinder 2 glow plug open circuit. I ended up ohming out all 8 glow plugs and found cylinder 8 was at 2.1 ohms while all the other cylinders were at .7 to .8 ohms. Replaced cylinder 8 glow plug erased dtc codes and codes never came back seemed to fix the issue. Glow plug was purchased from Amazon and I have provided a link below I will also include a link to the removal tool and also a link to the scan tool as well.
Motorcraft Glow Plugs: amzn.to/3JUX17A
Lisle Glow Plug Harness Removal Tool: amzn.to/3w67iYX
Kingbolen Scan Tool: amzn.to/3z4yI3P
Update so after a few days both codes came back for cylinder 8 and cylinder 2 again. I replaced the whole glow plug control module and that has totally fixed the problem. So listed below is a link to the oem motorcraft glow plug control module.
Motorcraft Glow Plug Control Module: amzn.to/3CKcJQU

[@gabewall7381]

Thanks a lot for making a thorough video, this helped me out. Turned out I didn't have any bad glow plugs, I just needed to press all the terminals in my glow plug module connectors together with a small flat blade screwdriver so that they’d make good contact with the controller and both of my codes went away!

[@BLUECOLLARGARAGE]

Yeah a lot of times the clips end up breaking and eventually vibrate out of the controller. I’ve worked on a lot that have been zip tied to keep from backing out.

[@gabewall7381]

Luckily none of mine are broken haha hope to keep it that way 🤞🏻

[@DavidGrassSr]

Your right there with Ron The Diesel Machanic,,, Great job . SE Texas, See Ya

[@BLUECOLLARGARAGE]

Thanks 👍

[@davidpyle9672]

Thank you for pointing out how to locate the glow plug numbers!

[@rsqme1982fire]

Wow! Nice job on the video! It was very informative, in focus, and easy to understand!

[@mbcb7849]

Wow, thank you for showing how to test out the glow plugs and the harness. My 06 f250 has the same problem on #8. Very informative! I subscribed and liked.

[@BLUECOLLARGARAGE]

Thank you… not sure if you saw my update in the description but the #8 code came back so I replaced the whole glow plug control module and that took care of the #8 code I guess it’s a common problem on the 6.0.

[@jimbtv]

Thanks. Your video is a big help.

[@darrinwelliver8219]

More than I knew. Thank you for the learning lesson.

[@gregbarth9617]

I know its a year late but great video and good information. Got glow plug 4 CEL so will check mine.

[@52felix87]

Everything I needed to know😂 thanks!!

[@K31011]

One of the best views ive seen on this , thank you

[@CarlosGarcia-tv6xn]

Thank You Good Video u saved me a trip to a shop

[@ricodinero4926]

great vid., thank you for your time!

[@fredmclaughlin2110]

You are way awsome Sir. Thnk you for everything you do.

[@robstuckey]

Great video, thanks

[@tkish5685]

Thanks for the video. I have 2,6,8 showing up on my '05 as well. Knowing where to get the readings and values is much appreciated.

[@unitewewill]

Thanks for the information and very nice video subscribed.........................

[@LorenzoQuesada-s1d]

Very helpful thanks

[@crautoguy8384]

Great video Good job dude

[@jimarmstrong4078]

I just want to give you a shout out. I got an 04 super duty F350 with a 60 exact same cylinder glow plug was open. I wanted to know what I was going to need to be doing to figure it out just like I said, I just watch this video. What are you give you a shout out and say thank you I’ll be looking at more of your stuff so I can keep up the maintenance on this truck so I’ll see you in the next one.

[@jacobelia4929]

just wondering. Did you get a check engine light or were you only told you had bad glow plugs by the obd2 sensor. ( Thank you video was very helpful)

[@BLUECOLLARGARAGE]

No check engine light I could just tell it wasn’t started as normal. Not sure if you saw my note in the description I ended up replacing the glow plug control module and that solving my issue.

[@1mw4tch1ng]

did you say the black connector is an ODD number cylinder but starting with cylinder 2-4-6-8? Do you mean 1-3-5-7 instead?

[@BLUECOLLARGARAGE]

Yes that is what I meant. Sorry about that I think someone else corrected me on that.

[@cesarcumatzdeleon4130]

On my truck shows .4 is that bad glow plugs? I need help

[@JP-mu3xl]

tested at the glow plug or 4-pin connector or Black or green connector? My Brand new GP's tested .4 ohms, I think as they age, the resistance goes higher, due to thermal breakdown

[@drlifestyle1817]

I have a question

[@BLUECOLLARGARAGE]

Sure go ahead

[@eliezersantiago7888]

💪💪💪💪💪💪💪💪💪💪

[@davidpaysse1916]

green is odd u said even

[@BLUECOLLARGARAGE]

Yeah your right it was already said and done and I couldn’t edit it out of the video.

[@cesarcumatzdeleon4130]

And number 8 doesn’t show any numbers