6.4L Power Stroke Engine and DrivetrainDiscussion of the 6.4L Power Stroke diesel engine and drivetrain in the 2008 Super-Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.
I was hoping someone could give some insight on a potential problem I am having with my 6.4. It now has 4500 miles on it and about 4 times in the past 2000 miles it felt as though it has a miss to it. If I take and really get on it the miss clears up and the truck seems to run better than it did before the miss. I am calling it a miss because with this being my first diesel it is the only thing I have to compare it to. It is like a gas engine that is missing, kind of a stutter. I thought about calling the dealership but without it doing it all the time or without the check engine light being on I do not think they could offer much assistance. Any ideas of what may be happening.
It was maybe damp out but raining no. 4613 how did your dealer diagnose the problem? Mine will probably tell me to bring it in when the problem happens more regularly or when the check engine light comes on.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bluefan</div><div class="ubbcode-body">It was maybe damp out but raining no. 4613 how did your dealer diagnose the problem? Mine will probably tell me to bring it in when the problem happens more regularly or when the check engine light comes on. </div></div>The dealer pulled the codes.#8 MISSFIRE.It was missing real bad on the way to the dealer,hard to make it do 60mph.When I got to the dealer,I shut the truck off,when I restarted it,it was fine.This wasn't the first time it done this.I just couldn't bring it in sooner.
It's not totally related but it sounds like a similar problem we had with one of our Caterpillar tractors. The problem was it would miss just like your pickup is doing, kinda of a stutter. If you shut it off, it would sometimes fix it for a day or even a week. The problem ended up being a loose/corroded electrical connection on the injector. We tried cleaning it but ended up putting a new injector in, all because of a loose connection. It sounds very similar to this problem.
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01' F-350 Powerstroke CC SB, 4X4, auto. MODS: 4" Exhaust with muffler delete, ATS E-Power Tuner, Autometer Phantom pyro, and boost guages, Rapid Flow intake.
Sounds as if the injector is clogged up, bad fuel, or you got some watered down fuel.
Dreen the filters and run some fuel injector cleaner threw it. I bet it will clear it up unless you got really messed injector that need to be taken off to clean.
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Y2K excursion XLT 2wd, ordered july '99, built august '99, delivered september 9 '99, 4R100 fried & replaced at 900 miles still running like a champ
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bluefan</div><div class="ubbcode-body">4613, your problem must have been a lot worse than mine. Mine will still accelerate but just not as quick. Maybe it will get worse?? </div></div>I don't know,I can tell that as soon as you start it ,you can tell at idle.I hope changing the injector helps.I have close to 26,000 miles.
mine does the same thing. it seems to be between 2000-3000 rpm at 20psi of boost. it feels kinda like a dead spot. as if it had a carb on it and it was cold.
Not sure when your truck was built, but I had mine in for a similar problem shortly after I bought it earlier this summer. There was a batch of trucks built in the April-May time frame that had 3 bad injectors in them from a reversed polarity test at the factory. Mine would feel like it was missing until I really got on it and then it would smooth out. Your dealer should be able to tell you if yours falls into the same boat as mine did.
Since having that repair done, mine runs like a champ! Actually got just over 19 mpg on a trip across US 6 through the canyons. Best I've done yet. I love this truck!
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2008 F250 CC SB 4x4 6.4L
2003 F250 CC SB 4x4 6.8L - SOLD
1994 F150 SC SB 4x4 5.0L - SOLD
Mine did the same thing the other day and yes it was raining. I thought it was just going through a regen. Since I have a rattle in the overhead I guess I might just drop it off and let them tell me what they find on both... I have 9000 miles on it so far.
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Experience is something you get... right after you need it.
2008 F350 long bed Lariat 4x4 crew cab 6.4 oil burner. 8" Fabtech and 37" Toyo MTs.
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