6.0L Power Stroke Engine and DrivetrainDiscussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. 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 6.0L Power Stroke engine.
As the title says, my new to me '06 F350 6.0L 4x4 cc 6spd 146,000mi. is bucking/stumbling (more of a bucking, like a gasser with bad plug wires) and no smoke at highway speeds under med. load(climbing hills,maintaining speed uphill). I can power through it. I have searched the forums and done some tests.
I cleaned and unplugged the egr for test purposes with no change.
I don't think it's the TPS because it does it with the cruise on.
I don't think it's the VGT solenoid because the boost gauge doesn't fluctuate. I assume it would do that if the turbo vanes where changing enough to cause a surge/bucking.
I did notice today it only seems to do it above 1800rpm. If I drive at 60mph/1750rpm it does not seem to do it. If I drive 65/1850 or a little more it will do it.
I have been experiencing the "buck" or "stutter" also. I have spoken to some very knowledgeable folks on this and other sites. I have narrowed mine down to the most likely cause: Injector(s) or stiction of same. I have about 800 miles on my most recent oil change, I put some Hot Shots Secret into the oil and it seems to slowly be making a difference. I recently had my FICM reconditioned by swamps, I have cleaned EBP sensor & tube, EGR is deleted w/solid up=pipe, IATII has been cleaned, MAP tube is clean and no obstruction. The only other thing I wonder about is the ICP. I want to be clear, I'm not 100% on the HSS just yet, after 800 miles it seems to be helping, I think.
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In the end we will remember not the words of our enemies but only the silence of our friends
2006 F350 C/C SRW S/B Lariat FX4, SCT X3 W/ID Custom tunes, Coolant Filter, CCV Mod, High Idle Mod, fog light mod, EGR Delete, 3.5" MBRP stainless Downpipe, 4" MBRP Stainless the rest of the way, Swamps FICM,Edge Insight Gauges,18" BFG'S, 120k
On the 06 it is on the drivers side of the block just below the level of the valve cover and closer to the "front" of the block, about a third of the way. It is located on a small tube that comes out of the exhaust manifold you should be able to see the wires leading to the sensor and the EBP tube more readily if you take the air intake and elbow off going to the turbo.
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In the end we will remember not the words of our enemies but only the silence of our friends
2006 F350 C/C SRW S/B Lariat FX4, SCT X3 W/ID Custom tunes, Coolant Filter, CCV Mod, High Idle Mod, fog light mod, EGR Delete, 3.5" MBRP stainless Downpipe, 4" MBRP Stainless the rest of the way, Swamps FICM,Edge Insight Gauges,18" BFG'S, 120k
having the same trouble, here is a question , does it do this with the truck in tow/haul mode, mine does not do it in tow /haul above 2000rpms. also put in hot shot secrets today and will post the results ...
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1996 psd f-250 xlt ---- sold
1999 psd f-250 lariet - sold
2002 psd f-350 lariet - sold
2004 psd f-250 lariet - sold
2006 psd f-250 lariet
I have the manual trans. Is yours going away because tow mode down shifts and puts you above 2000rpms? Or just the tow mode that helps. Mine seems to go away after 2000rpm.
im thinking it is because im going above 2k rpms. i will be driving about 500 miles in the next two days, i hope to see results from the hot shot secrets, if not i will be patient and give it 2k miles...
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1996 psd f-250 xlt ---- sold
1999 psd f-250 lariet - sold
2002 psd f-350 lariet - sold
2004 psd f-250 lariet - sold
2006 psd f-250 lariet
I have a f-250 superduty for a service truck. The first time it did that to me I almost turned around and went back to the shop. I pushed it through and it made it just fine. Felt almost like the lockup clutch was kicking in and out.
I am buying a 2005 f550 truck. Hope it doesn't have these problems. I'll keep watching and maybe find the answer to my service truck.
Hot Shot Secret is an oil additive that claims to clean the oil side of your injectors and anywhere the oil travels. It is supposed to get rid of stiction or the burnt oil residue that can gum up your injectors. At least that is how I understand it. I have it in my engine also because mine was getting very hard to start, but I ended up taking it in and it had codes for all 8 injectors ended up putting in a new FICM, works like new $1100.00 later. I am leaving the HSS in to clean whatever it cleans can't hurt
seems to occur between 1300-1600 rpms @ 50-60 MPH, at least thats when it is most noticeable w/the Auto trans. I hope that some of the Ford techs who monitor this site will chime in at some point as well.
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In the end we will remember not the words of our enemies but only the silence of our friends
2006 F350 C/C SRW S/B Lariat FX4, SCT X3 W/ID Custom tunes, Coolant Filter, CCV Mod, High Idle Mod, fog light mod, EGR Delete, 3.5" MBRP stainless Downpipe, 4" MBRP Stainless the rest of the way, Swamps FICM,Edge Insight Gauges,18" BFG'S, 120k
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ended up putting in a new FICM, works like new $1100.00 later. I am leaving the HSS in to clean whatever it cleans
can't hurt
Linear Mode
