2003 6.0 Powerstroke Running Rough and Blowing Smoke - Diesel Bombers



Ford Powerstroke 03-07 6.0L Discussion of 6.0 Liter Ford Powerstroke Turbo Diesels

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Old 04-27-2010, 01:45 PM
Diesel Fan
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Default 2003 6.0 Powerstroke Running Rough and Blowing Smoke

Hi all, I am new to the forum and to the diesel world. I picked up a 2003 F250 Super Duty 6.0 Powerstroke with 118,000 miles on it for 6700.00 dollars from an auction. The truck is in excellent shape and I thought was a good deal (not so sure now). The issue I am having is smoke (kind of a white color with a tint of blue) coming from the exhaust not from idle but when you take off from a stopped position. Once the truck gets up to speed the smoke settles down to almost nothing and the truck runs good.

What I noticed was at speed (60 to 70 mph or higher) there are no issues, once you start to slow or climb a small hill the truck starts to shake or buck a little, get back to speed and it goes away. There is no engine light on (no idiot lights on at all for that matter) but, I decided to check the codes. The following is what I got:

PO263
PO562
PO671
PO683
P1378

I got messing around with the engine (I'm not a diesel mech) and found the fuel filter was clogged so I changed that, tested the injectors and believe Cyl 1 injector is bad. I did a volt test on the FICM and all are coming in over 44 volts (around 48). I guess what I want to know is what else should I be looking at and what you all might think is the problem.

As I said before, the truck cranks up fine, idles fine, runs ok so to speak.

Thanks in advance for the help.
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Old 04-27-2010, 02:59 PM
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Default Same issue....

I have a 2004 that I just bought a few months ago with the same type of issues. It idles really rough when you first start it, and at first I thought it was just the cold weather affecting it. So I hooked up the upfitter switch so I could run high idle to warm it up quicker. Well it has been warm here in Kentucky for awhile and the truck still takes 5 min to warm up. If I attempt to drive it before its warm, it shakes and puff a lil blue tint smoke as described above. This is my first Ford, Ive always have run Cummins in the past so I dont know much about this truck. Any help would be beneficial.

---AutoMerged DoublePost---

Also when I get on the throttle, it has a really slow throttle response. Its like it lags. Is this normal for a 6.0? I know when I feathered the Cummins, off it took. It sucks when I race because the truck dont pick up and go until my turbo is spooling at least 7 psi. My buddy in his Chevy 2500 Gasser stomped me off the line the other day, and I didnt catch him until my turbo was up and taking off. Also when I let OFF the throttle, it makes this wierd kind of chirping noise for about a second. It used to be only when let off after running it up high (i.e. getting on the highway etc) but now I hear the "chirp" whenever I let off the throttle. I'm thinking maybe I have a bad injector, I'm praying the turbo is ok.

Anybody heard about any of this before? Thanks.

Last edited by Cumminscowboy_101; 04-27-2010 at 02:59 PM. Reason: Automerged Doublepost
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Old 04-27-2010, 03:07 PM
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sounds like you are both having FICM problems. Dirago 44v is too low the injectors need 48v to fire. i would suggest doing the resolder procedure and see if that fixes it.

Cowboy - you should test your FICM to see if that's your problem.
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Old 04-27-2010, 03:38 PM
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your vains on the turbo might be gummed up too?
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Old 04-27-2010, 04:47 PM
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if he's only running 44v at idle(im guessing you didn't test WOT) there's his problem. i'm 94.673% sure
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Old 04-27-2010, 05:51 PM
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Thanks Mud, I did the FICM repair and I do have 48v now, however the truck is a bit better (still smoking but not as much) but, still doing the same thing.
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Old 04-27-2010, 09:51 PM
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Well you also have two codes for injector #1. Maybe get a contribution test done? You also have a couple glow plug codes, I would inspect the glow plug wire harness with a fine tooth comb. if there is ANY chaffing, just replace it. You can also try swapping glow plug control modules with a buddy if you know someone else with a 6.0.

Do you have 48v hot/cold with the key on and with it running? I assume you do now since you repaired it already. Injector #1 looks like the next suspect. The dealer is the best place to get them since they come with a 12kmile/12mo warranty.
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Old 04-27-2010, 10:30 PM
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I'm getting 48v cold. Inspected the wire harness for the glow plugs and can't find any chaffing, tears, splits, etc. I am thinking the egr is bad along with the the injector. Will replace those and take it from there. Tested the glow plug module plus wires and I'm getting 12v, so I'm assuming that is fine.
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Old 04-28-2010, 01:05 AM
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I don't think 12v was correct for the glow plugs, but I will investigate more. I read your post on the ORG too and I thought you had said one of the pig tails for the glow plug harness was "damaged" in some way? Check the FICM warm too. These motors are so simple (once you really break it down) that it makes it hard to diagnose!
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Old 04-28-2010, 09:27 AM
Diesel Fan
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Quote:
Originally Posted by Mdub707 View Post
I don't think 12v was correct for the glow plugs, but I will investigate more. I read your post on the ORG too and I thought you had said one of the pig tails for the glow plug harness was "damaged" in some way? Check the FICM warm too. These motors are so simple (once you really break it down) that it makes it hard to diagnose!
No it turned out the pig tail was fine. I'm trying to get all the info I can before I start buying parts and doing a "hit" and "miss" kind of thing. Just replacing parts here and there can get very expensive very fast. I so far have it boiled down to the injector and possibly the egr, fix that and hopefully all will be fine, if not........what next?
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