Glowplug cause #8 contribution? - Ford Powerstroke Diesel Forum
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post #1 of 20 Old 04-21-2019, 03:58 PM Thread Starter
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Glowplug cause #8 contribution?

Im looking at an '06 with 138k, and everything looks good except a p0678 and p0284. It lost the front driveline 2 months ago, along with half of the transfer case. It hadn't been started since it broke, but it fire up easily with a fair amount of white smoke. It idled kinda rough for a minute or so, and the smoke cleared up after 5 minutes.

Only mods I know of are egr delete a tune. Claims new injectors and glow plugs recently. How bad could I really get hurt for $3k?

Thanks for any help!
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post #2 of 20 Old 04-21-2019, 07:48 PM Thread Starter
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Well, I was finally able to get ahold of the only ford tech I know. He said it was likely that zero degree weather when it was last driven that the contribution code was caused by the glow plug or controller. He said to find a round single pin connector between the battery and the hvac plenum, and short the pin to hot to crank without fuel. If it has an even and steady sound it should be ok on compression. Check blowby at the cap for excessive or uneven pulses.

Anyone have any thoughts to add?


For some reason I look at a powerstroke and go full retard. Having only owned 5.9's it just seems like double the trouble, but I'm not sure if that thought is justifiable. Not knowing what anything is, really throws me off though. I can't believe I didn't even check blowby when I looked at it the first time.
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post #3 of 20 Old 04-22-2019, 02:59 AM
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youtube. com/watch?v=yK8-ULtrjY4

The base engine check starts at around 7 minutes in. A glow plug won't cause contribution issues.

You're going to be looking at an injector, FICM, or compression problem.
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post #4 of 20 Old 04-22-2019, 05:19 AM Thread Starter
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Where can I find the set parameters for a contribution code? Is there a fsm download available?
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post #5 of 20 Old 04-22-2019, 10:10 AM Thread Starter
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Quote:
Originally Posted by 066 View Post
youtube. com/watch?v=yK8-ULtrjY4

The base engine check starts at around 7 minutes in. A glow plug won't cause contribution issues.

You're going to be looking at an injector, FICM, or compression problem.
I could only find a 3 minute video searching that link.

Are you saying that it will ignore any imbalance until the engine reaches operating temp?
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post #6 of 20 Old 04-23-2019, 04:41 AM
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youtube. com/watch?v=xbKZ50x4_go

Sorry, I copied the wrong video link. Watch the whole thing, it will help you out if you're serious about this truck.

At 11:15 minutes, he pulls a P0284 code on his scanner. The description on the right says possible causes are: Valve train assembly, Fuel injector, or compression rings.

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post #7 of 20 Old 04-25-2019, 01:26 PM
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Just wanted to say, Id point at a bad powerside FICM. I have one for sale if you need one, its damn near brand new. I cant send you any PMs tho, so I guess let me know here.


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post #8 of 20 Old 04-25-2019, 01:53 PM Thread Starter
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Originally Posted by MrOneEyedBoh View Post
Just wanted to say, Id point at a bad powerside FICM. I have one for sale if you need one, its damn near brand new. I cant send you any PMs tho, so I guess let me know here.
Is voltage the only way to diagnose a bad ficm, or will the koeo injector test help. I did the injector test, but being ignorant to powerstrokes, I didn't know what I should have been listening for.
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post #9 of 20 Old 04-25-2019, 02:02 PM
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Originally Posted by Mcflyfyter View Post
Is voltage the only way to diagnose a bad ficm, or will the koeo injector test help. I did the injector test, but being ignorant to powerstrokes, I didn't know what I should have been listening for.
Honestly what Ive found and suggest is to test them cranking and under a load.. they can look good under idle but once a load is applied and the ficm is required to work harder etc, thats when it can show fault.


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post #10 of 20 Old 04-27-2019, 01:08 PM Thread Starter
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How does this look? I couldn't detect pulses with my hand, and a piece of paper on the neck didn't flutter much at all. It idles fine, and is smooth up to 1900rpm, then it starts getting pretty rough. A fuel line an the frame is half smashed, but I doubt it is enough to starve for fuel without a load. There was a fair amount of smoke until it warmed up, then just a slight haze.

https://youtu.be/VpmwKXo9JZM
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