P0284 Code 2006 F350 6.0 Diesel 100K miles - Ford Powerstroke Diesel Forum
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post #1 of 17 Old 09-02-2019, 04:14 PM Thread Starter
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P0284 Code 2006 F350 6.0 Diesel 100K miles

This engine was in a shop that replaced several things including all the injectors on the 2-4-6-8 side. New oil cooler and egr and low wiring. Engine ran great for a few days then got P0284. They found that the lower fuel filter had gunk and replaced. The engine ran fine for a few days and then P0284. I put a pressure gage on top filter lid and the pressure is 56psi idling and running down the road. My plan is to pull the lower filter and check for gunk and replace. Run and see what happens. Next I plan to pump fuel out of tank....and rinse it with something. Question: Am I on the right track?
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post #2 of 17 Old 09-03-2019, 12:13 AM
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... Question: Am I on the right track?
Not in my opinion. You just had a shop replace - among other things - your #8 injector and now only days later you have a cyl #8 contribution/balance code. I'd take the truck back to whomever did the work and tell them to make it right.

Maybe it is something as simple as a bent FICM pin or loose injector connector, but why make it your problem? You paid them to make it their problem.

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post #3 of 17 Old 09-03-2019, 07:22 PM Thread Starter
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I am trying to save money by doing some things i can handle. Does the constant fuel pressure reduce the chances of junk in tank causing this problem? I will check lower filter tomorrow. Assuming good connection on # 8 injector and no pins bent on the 3 FICM connectors will the next thing be new FICM? Please give me some help,
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post #4 of 17 Old 09-03-2019, 10:57 PM
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I'm not saying pay the people who fixed your truck to look at this problem. I'm saying that they owe it to you to address this as part of the work for which they have already been paid. If you choose to make this your problem, it will become your problem.

I'm just one person and I don't own a shop. But I don't think that you have a fuel problem. You have a wiring problem or an injector installation problem. Both of those fall under the responsibility of your shop.

If not that, to chase that code, I would have a contribution/balance and compression test done. You could swap the FICM it first, if you had a spare to borrow. I wouldn't buy one to replace without more to go on.

But, again, I'm offering my opinion, only.

Go here:

https://www.powerstroke.org/forum/ge...al-2004-a.html

..and look up the code on the end of Section 4. Then go to the listed Pinpoint Test in Section 5. That will describe the possible issues and remedies.
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post #5 of 17 Old 09-04-2019, 06:47 AM Thread Starter
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The FICM have to be programmed for vehicle so I can't swap one from our other 6.0 truck right? Considering the amount of money to date a new FICM from amazon for $499 not a big deal. I am a little concerned about unhooking the FICM connectors. Seems tricky .....finding good diesel shop hard this is second one on this problem..2 months. Might bite bullet and go Ford dealer.
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post #6 of 17 Old 09-04-2019, 06:54 AM
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Originally Posted by ed2hess View Post
This engine was in a shop that replaced several things including all the injectors on the 2-4-6-8 side. New oil cooler and egr and low wiring. Engine ran great for a few days then got P0284. They found that the lower fuel filter had gunk and replaced. The engine ran fine for a few days and then P0284. I put a pressure gage on top filter lid and the pressure is 56psi idling and running down the road. My plan is to pull the lower filter and check for gunk and replace. Run and see what happens. Next I plan to pump fuel out of tank....and rinse it with something. Question: Am I on the right track?
What kind of injectors were used as replacements? I also do not believe you have a fuel issue that is causing your problem. Have you checked the pins on the injector plug? I have seen those back out and cause intermittent problems. What voltage is your ficm running? Does it drop below 48? I have also seen bad reman injectors out of the box.

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post #7 of 17 Old 09-04-2019, 07:50 AM Thread Starter
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To get voltage on FICM remove cap with 2 screws and then measure one of the four screws relative to ground? With engine running I assume. I will try to get brand of injectors...Assuming FICM voltage is above 48 volts and no pins out does that rule out FICM. Is there an tip for disconnecting those three connectors on the FICM? One Utube had caution?

Last edited by ed2hess; 09-04-2019 at 07:56 AM.
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post #8 of 17 Old 09-04-2019, 11:27 AM Thread Starter
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Could I expect a good diesel shop to install circuit board into FICM to hold down cost. Not necessarily one from amazon. BTW.......a month ago a diesel shop didn't tighten the nut on back of alternator and batteries drained down completely. Goggle says that can damage FICM?
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post #9 of 17 Old 09-05-2019, 10:44 AM Thread Starter
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I pumped out the fuel tank. There is a gritty substance on the wall that won't hardly come off with a brush. Seen some of this in the lower filter housing when cleaned it out. Is new tank my only option?
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post #10 of 17 Old 09-06-2019, 12:14 PM
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Quote:
Originally Posted by ed2hess View Post
The FICM have to be programmed for vehicle so I can't swap one from our other 6.0 truck right? Considering the amount of money to date a new FICM from amazon for $499 not a big deal. I am a little concerned about unhooking the FICM connectors. Seems tricky .....finding good diesel shop hard this is second one on this problem..2 months. Might bite bullet and go Ford dealer.
I wouldn't even think about a FICM from Amazon. You can get your existing FICM upgraded at FICM repair.com and have a very reliable unit. The cost is about the same - maybe even less.

A FICM does not have to be programmed for a specific engine.

Just remember, you have a contribution code and not an electrical code.

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Last edited by bismic; 09-06-2019 at 12:19 PM.
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