Ford 6.0L Power Stroke Diesel :: Studder During Acceleration Only When Cold
Aug 5, 2015
My ride again has started to develop a small studder during acceleration. It seems like only when it's cold. But when the temps are at normal it's not there.
At work now, but would like to get a heads up on it by the time I get home. To know what to look for.
No modes, no codes nothing but the studder.
Using T6 every 5000klm, fuel filter every 15000klm.
I have a fuel filter at home and will first replace it, before anything else.
BTW, all filter are OEM
About a year ago I had something similar. But I through some codes. I will look them up here at FTE.
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I think I'm going to buy a late 99 CCLB six speed manual truck that's probably been sitting all of a year, maybe longer. Prior to being parked the truck ran flawless. 6 months after parking it he decided to sell it and when driving it, it has a miss when its cold and blows a little white smoke when accelerating. Appears to clear off and run normal after its warm. So he decided to investigate it and re-o-ringed the injectors and checked other things out.
He's determined he thinks it has a weak hpop. Not sure I'm sold on this. Fast forward six months and now I'm pretty sure I'm going to buy it. Drove it yesterday and same thing, first 4 or 5 miles kinda studders or misses but after that runs smooth and has no issue. No longer blows white smoke at all or anything. Obviously the fuel is old as hell, other than that what is everyone's thoughts?
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My 2007 6.0 has a really rough (almost 'miss') during cold start up. After 5 seconds or so, it smooths back out and sounds normal. Until gauge reaches normal operating temp - there is a surge/lack of power during light acceleration. I also hear a frequent compressor coming on and running for a while which I am contributing to a possible vacuum leak. Maintenance is always done on time and I've already had a few costly repairs (both internally as well as externally) on the engine. I usually always wait for the glow-plug indicator to turn off before cranking the engine and let it idle for 5-10 minutes prior to driving it. Once the vehicle climbs to normal temp. everything seems to be fine but the compressor still comes back on every so often.IS it worth simply replacing the vacuum canister located behind the passenger side battery - or should I find someone to hook up a diagnostic unit first?
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It only happens on a very Rare occasion.
When Cold, and when I start out as I open the throttle, it suddenly sounds like there is not a piece of quieting stuff on the engine. I mean its like I can hear right into the engine itself.
I back off, It goes away then I dont hear it again for another Month or two.
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So the 04 is rolling down the road when the cluster gauges ping, the truck loses power/acceleration but the radio never goes out. Have a new alternator and batteries passed a check. It has done it three times. We are 1100 miles from home. OBD and cigarette lighter fuse was blown as well.
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I have an issue with my 6.0. I was running the extreme street tune from IDP for the past 2 years now and recently purchased the xtreme X tune from IDP. I loaded in the tune and had low boost, low power and horrible acceleration. Max boost i would see is about 10psi and it would take about a solid minute to reach highway speed when merging on the highway. I went back to the stock factory tune and have the same issue. No boost leaks from the boots or pipes and no check engine light. What is going on?
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I have an 03 6.0 Power stroke. My problem all started the other day when I started to occasionally not get any boost on acceleration and lose of power and a lot of vibration like it's about to cut out but it got worse now today I drove it about 5 miles into town when I got to town I noticed a rough idle I got gas in a gas can not in the truck. I got back in to leave and I had absolutely no power at all the truck stalled out and it was very hard to start finally got it started and it runs really rough almost like it's going to shut off.
So when I started driving I would only make it about a mile or so with out it chocking out and having to let it site for a minute or two and start it back up and go another mile or 2 and have it do the same thing all the way home all the time I have vary little boost if any at all except for when I first pull out now oil pressure is good and engine never over heated some of the codes I have is an EGR code and a contribution balance code for several cylinders I was thinking possibly a maf sensor or a clogged egr not working right.
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What makes a 6.0 or 7.3 "clack"? I am not experienced enough with internals of a diesel to understand it.
Reason I ask, is my 6.0 is clackier than ANY other 6.0 or 7.3 that I have encountered. I mean it really cackles. Injector timing?
the engine was "bulletproofed" and (as the seller stated to me) was "flashed with a custom designed tune made by a Powerstroke specialist"... to which I have no further information on. This I assume was done for longevity and not performance.
Its quiet on the highway, but in town and stop-starts or low-speed acceleration it is crazy crackly.
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First of all, I have 2004 f-350 92K miles with a stock 6.0 - EGR deletes and new oil cooler is the only updates.
Two weeks ago I had an issue pop up. When I tried to start from a dead stop there was no acceleration, it would idle ok but when i pressed on the peddle NOTHING! I called the local diesel guru, he recommended I change the fuel filters. After I did this there was a tremendous improvement in performance.
After a few days of normal driving, I noticed a subtle reduction in throttle response. Today I noticed a slight lag when accelerating which lasted about 3 miles until there is once again no acceleration. It will start normally and idle is a little rough, but will not accelerate even in park the engine is extremely slow to accelerate.
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What is a "normal" number people see on their load factor? Mine was around 25-30 a few weeks ago but I noticed it is increasing to around 30-40 once I'm in gear, in park it's fine. My acceleration is also getting a bit sluggish too especially going up hills and my throttle isn't responding all the way, my turbo boost is normal though and I don't think there is any VGT stiction. I'm thinking either a fuel filter or a MAF sensor to start with. Fuel filters have been in exactly 10 months. Can a dirty fuel filter, air filter, or MAF sensor affect engine load at idle and how fast it accelerates? I feel like I'm pulling a trailer and with it being more sluggish, my transmission is shifting harder as well.
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I'm getting some light surging while under acceleration. None at idle or once in overdrive. I cleaned out by exhaust back pressure although it wasn't really that dirty. Thinking about replacing the sensor anyway but it is a little pricy to just buy for no reason. Should I look for anything else? And where I'd the best place to get one? I've seen the 20 amazon ones or over 100 at the parts store.
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My truck is developing a hesitation or a miss when accelerating. It only does it in the beginning of accelerating like when just starting off from a stop. Seems like its more noticeable with the more I get on it. If that makes any sense. When just lightly accelerating it doesn't do it, like going slow through town from light to light. But when I give it more is when I feel it. It seems like it only does it before the turbo kicks in and it puts out a little smoke too only before turbo kick in. After that it runs good with no noticeable miss or anything. WOT runs feel good after it clears up. Its just when first starting out with anymore that 1/4 throttle I can feel it.
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I have a 2006 6.0l f350 crew cab that blows air hard every time I accelerate. Sounds like you're going 100mph with the hood unlatched. It blows real hard for a minute and goes away if I accelerate through it or let off.
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Always regretted selling my 1988 ford diesel. It was a stick shift 4x regs cab. Very fun to drive. But I was a kid so when it developed a tranny noise I panicked and sold it. So, I bought a pile of crap in the form of a 2004 super dooty. It's a long bed ex cab, but had a stick shift!
It's got 330k on the clock, spicer rear end, and the famed 6.0. It's 4x4.. The truck isn't running and has a laundry list of engine issues including coolant blowing out under acceleration, hpop failing, weak injectors, oil leaks.
Compression is claimed to be good, but I'm thinking it would be easier and cheaper to fix up a used engine and swap it in. I'm open to other engines too, so I'd love to hear about options for that.
My research indicates that the 6.0 can be made to work well. For the money I have into the truck there is some room to invest in the engine. I have a line on a lo mile used 2006 6.0 engine. I've been told that the later years like 06 were less prone to some of the issues. Would this engine require head studs/gaskets and hpop fixes?
I'd be doing an egr delete for sure. And a coolant filter setup which is a new concept to me. What else would need to be done to bolster this engine? Turbos okay in these? I saw my friends ford burn to the ground from a cracked turbo. Or, should I put a gas engine in?
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Shes a rocket at low speeds but at speeds above 50-60 acceleration is slow. How can you boost it? Bigger turbo? Better injectors? Rpms aren't maxed, it just seems sluggish...
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I don't think it is the switch. About 3 months ago towing a heavy load I smoked my Trans during that time when the transmission got over 220 the dome lights would flash and the door ajar warning would flash. I just thought it was a high temp warning. Now tranny is fixed I was towing another heavy load and it started doing it again but all temps are good. I Unhitched load and now it does it most of the time when I accelerate. It seems to do it only under load on the engine. Called ford and they said it's not a warning and they think it's a electrical short. But it only does it if I accelerate.
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Just noticed a sound of air sucking sound under the hood on heavy acceleration only, the harder I push the louder it gets. Either sucking or hissing sound. I feel no difference in driving. No loss of power or anything else. Just the sound of air coming out like a leaking air line. I will check later this afternoon if its affecting my turbo boost. I have 235000 klms on the clock
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I recently bought an 03 F350. I've noticed on cold starts that it has no power. After about 5 minutes it runs very well. I have not noticed any misfires or smoke and there are no codes thrown. Based on what I have read here, I assumed it was a FICM issue. I just got done testing it and it was at a solid 48v with 1 dip to 46 on engine crank. I'm baffled at this point. The truck literally has no other issues except low power for the first 5 minutes.
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I'm getting a p0087 on a hard acceleration new low pressure pump new fuel filters run the pinpoint test in the pced is fine and passes the high pressure test with the ids? Not sure where to go from here?
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I bought my f 350 new from the dealer and have had many of the problems associated with this truck. Now I have a severe shudder while under acceleration when i either let off the gas or increase speed the shudder goes away. My dealer thinks it is injectors but I have little faith. Shudder seems to be rpm consistent and seems to be in the front end. oh yea it idles great and runs great except at that specific range.
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I have a 2004 f350 6.0 it has 73000 miles on it. I've had the truck for about a month and its developed a slight stumble, hesitation. It does it during idle and acceleration, if I give it more throttle it smooths out. The cel is not on and there are no stored codes.It did this a few days after i bought it,i noticed the map sensor was broke in half so i replaced that and it smoothed out.But it came back. Exhaust is clean no white or black smoke at all.
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