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.
Just talked to the mechanic...we're going to remove the catalytic converter and just replace it with a piece of pipe tomorrow to see if that relieves any possible exhaust issues. I'll post any updates.
Removed the cat. converter...replaced with straight through pipe....no improvement. The converter was clean anyway....you could see right through it. The next step is scheduled for Saturday morning, we're going to start swapping out sensors one by one with known good ones from another truck to see if one of them resolves it. I'll update when that's done.
At least your truck sounds like a leer jet now!
My guess is unison ring in the turbo or vgt solenoid. When you are flooring it with no power do you have any idea what your EGT's are doing?
Well....swapped out the EBP sensor and the MAF sensor.....neither made a difference. Although after doing so, we drove the truck we pulled them from and it felt A LOT like mine. Didn't have the opportunity to tow anything with the comparison truck so I don't know if it would also not be able to tow 7500 lbs. up a slight hill any faster than 50 mph either. We put the cat back in just because it didn't make a difference and it was clean. The mechanic is stumped....said he's going to call Ford again on Monday and let them know what else has been checked. If they don't have any further ideas, then he's thinking that maybe swapping out the turbo with a known good one is the next step. Anybody else have any input? Again, truck runs smooth, no smoke, no codes, no peculiar behavior.........other than it just isn't lively...AT ALL, and when towing my 7600 lb camper, it tows it like I'm towing 20000 lbs.
Stoked50....I got curious about you stating that "at least now it will sound like a leer jet" with the cat pulled off, so I did some you tube look ups and saw/heard what you were talking about on those videos. Mine didn't sound anything like that with the cat pulled off. When the cat was pulled out, the mechanic replaced it with just a piece of pipe...which of course connected from there back to the muffler. Wonder why mine didn't sound anything like a leer jet....it just sounded like it always has. Is there any way possible my lack of the leer jet sound has anything to do with my issues? What causes the leer jet sound when the cat is removed?
Every 6.0 I have heard with the cat removed sounds like a jet. I was just making a joke by that comment. Maybe those that I heard had a intake as well which added to the whine of a jet.
Kraftchick I have the same problem with my 2005 king ranch 6.0. I've got around 91k and I pull my 25' fifth wheel and have the same problems. I went ahead and added the edge evolution programmer and mbrp 4" duals straight piped/ no cat. This truck still sucks when you put it in the extreme setting. IMO this truck couldn't pull a sick whore out of bed.
My last truck was a 2006 dodge cummins and I loved the six speed and the three clutches that came with it, and the power unchipped and chipped was out of this world! However I did blow the motor in it @ 167k. They said the #6 piston broke up. This is the third out of six 05-06 dodge trucks we've replaced motors in.
Now back to the FORD- F_cked Over Rebuilt Dodge :0..... I just had the egr valve replaced, new cooler and lines, and five injectors and it still runs like crap. I feel your pain on the towing issue. A friend of mine has a 06 ford 6.0 and while he's pulling his 30' 5wheel+18' boat(pulling around 12k w/boat) I can barely keep up @65mph pulling just my 25' weighing in at 9200.
I have had two 7.3 fords, 01 duramax, 2006 dodge and now this 2005 6.0 and have run them all right off the dealer lots and eventually into the bone yard. I work for a company that provides these trucks to us every couple of years and we run the crap out of them in the oilfield but I also use them as personal trucks so these things see every type of driving and pulling.
I can not wait to peddle this joke of a truck and I would recommend you do the same.
Oh and as far as your transmission idea I don't think thats the problem either. I just had mine replaced @ 79k.
Probably not the same issue, but I had poor towing performance. Brought it in, thinking EGR or turbo issues. PIcked it up, and they had replaced the FICM. Work order shows FICM was only putting out 29V when it is supposed to be 48V. Symptoms for me were no power towing, especially going up hills, excessibly high turbo psi, but otherwise it ran good. Towed this past weekend, and hills that the tranny used to downshift on, no longer do with power to spare.
Still nothing new. Under a recommendation to check the fuel delivery, I pulled the secondary fuel filter out, siphoned the bowl empty, and when the key was turned on, it filled the bowl up in about 2 seconds. At least to that point, fuel deliver seems okay.
The FICM replacement is interesting. Would the low voltage produce any codes...mine still produces none.
As far as adding any kind of aftermarket programming, etc...I still feel I shouldn't have to do that just to get it to pull 7500 lbs. I'd rather find the root of the problem and get it fixed. Towed the camper this weekend down to SC...I could run 65-70 on the highway, but the pedal was near WOT the whole time, and to get it to gear down at any speed above 50mph, I'd have to stand on the pedal as if I were trying to push it through the firewall. I mean pushing on it so hard I'm out of the seat. Averaged about 9 mpg towing. However, with some of the things that have been done...performance without a load has seemed to improve a bit. It seems to get through the gears quicker. Towing though is still horrible. With the fall season I was hoping to do some camping/4-wheeling up in WV....no way no how will I attempt to tow that camper up any mountains right now...it would never make it.
I haven't talked to the mechanic in over a week...he's the guy that hosts the Southern Smoke Show here in NC, and is the administrator at power$tr0ke.org. He's was busy with the show last weekend and I was out of town after that...but I'm getting in touch with him this week to discuss what the next course of action is.
Make sure your OBD port & aux power port are working and the fuse is good. Mine had a blown fuse before and when I hooked up my scanner it would read zero codes.
Does anybody know if low voltage on an FICM would produce codes?
Low voltage to the FICM would likely through a P0611 code and/or low circuit codes for the injectors.
Virtually every sensor on your truck will store a code if it malfunctions (though many of them will not set the check engine light). Using an Autozone code reader is an excerise in futility. Their equipment can only tell you what a check engine light is for. It doesn't read codes that are stored but don't set the light. If you truly have no codes then I doubt it is a sensor.
Have you checked your fuel pressure? If not, I would. There have been many issues with fuel pressure on these trucks and inadequate fuel pressure would certainly affect performance. It will also kill your injectors.
__________________ 2003 Toreador Red/Arizona Beige CC, DRW, Lariat, FX4, 6.0 PSD, Torqshift, born early Feb. 03; AIC; MBRP turbo-back exhaust; SCT with tuning by Tony Wildman (Total Diesel Performance) & River City Diesel; ARP studs, 155 sticks & some other work by River City Diesel; AFE PG7; Fumoto valve; B&W hitch, Di-Pricol gauges; Voyager brake controller; DIESELSITE Coolant filter; Timbrens; Rancho RSXs; Michelin XPS Traction's; a whole bunch of "bling"; Connex 4300hp; Pioneer DEH6100BT, JL Audio 275w amp w/ 12" sub, Alpine door and rear seat speakers.
Low voltage to the FICM would likely through a P0611 code and/or low circuit codes for the injectors.
>snip
In my case, 12V to the FICM was ok. there was no CEL. The problem was that the FICM was supposed to put out a nominial 45V and it was only putting out 29. Since the replacement, my towing power has returned. I dont know if a code was thrown for that or not. When I brought my truck in, they were expecting to do a EGR service, and possibly Turbo. when I got it back, they had replaced the FICM. So, unless FICM diagnostics are a routine thing they always do, I expect that a code was thrown to lead the tech there.
On the FICM code....that's what I figured. I have verified that the no codes at all isn't due to fuse failure. When I had Autozone check it for codes, it didn't even connect...fuse was bad, so I replaced it. They still didn't pick anything up. But now it's been on the mechanics scanner several times will full communication, etc.....still no codes. Tonight I took it by and he pulled out the EBP tube....it was clean. He's talked to Ford a few times, but neither he nor Ford can determine what is wrong. His computer show everything.....everything being right at spec....all voltages, sensors, boost, etc. Other than beginning the extremely expensive process of throwing new parts at it (at my expense....out of warranty by 9,000 miles)....he just doesn't have any other ideas. So we decided tonight that we were going to hang up trying to figure it out. I'm not in a position financially right now to sell and purchase something else. We decided to order a SuperChips programmer for it. Any opinions on that? I have to admit that I'm concerned about "forcing" the truck to produce more power rather than it just performing like it "should"....especiallly just to tow 7500 lbs. I've heard plenty of horror stories of chips, tuners, etc., being applied and two weeks later having blown a headgasket or warped a head, or anything of that sort. I don't care if this truck can't smoke all 4 tires in 4-wheel drive....I don't care what it runs the quarter mile in, and I don't care if I have the slowest diesel on the highway....I just want it to pull our 7500 lb camper the way it should...with the ease that I've experienced in testing pulling the same camper with other F250's. I used to pull around a 3500 lb Ski Nautique with a 4-cylinder Toyota pickup....that was always a horrible experience. I bought this truck knowing it would be overkill for pulling the size camper I have....turns out it dang near the same situation I had with the Toyota pulling that boat. Now I have to chip it to get it to pull 1/2 the weight I technically "could" pull. Opinions? Advice on the tuning? Since I'll be boosting the power with an aftermarket product...should I also get some sort of EGT monitoring?
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pulling just my 25' weighing in at 9200. 
2003 Toreador Red/Arizona Beige CC, DRW, Lariat, FX4, 6.0 PSD, Torqshift, born early Feb. 03; AIC; MBRP turbo-back exhaust; SCT with tuning by Tony Wildman (Total Diesel Performance) & River City Diesel; ARP studs, 155 sticks & some other work by River City Diesel; AFE PG7; Fumoto valve; B&W hitch, Di-Pricol gauges; Voyager brake controller; DIESELSITE Coolant filter; Timbrens; Rancho RSXs; Michelin XPS Traction's; a whole bunch of "bling"; Connex 4300hp; Pioneer DEH6100BT, JL Audio 275w amp w/ 12" sub, Alpine door and rear seat speakers. 
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