Ford 6.0L Power Stroke Diesel :: Squeal Under Hard Acceleration At 3000 RPM With Roughly 20 Lbs Of Boost
Aug 15, 2016
Experiencing a squeal under hard acceleration at 3000 rpm with roughly 20lbs of boost, not present before and not present after 3000 rpm. light acceleration to 3000 rpm does not create sound, as well as turning 20lbs at a lower rpm (higher gear with throttle input). Truck has an EGR delete, EGR delete up pipe. EGR valve is still in place and plugged in. Truck did come with a banks six gun, so does not have EGR delete tune, however no trouble codes are present. What to check?
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For a month or two now my truck has been making a squeal and the turbo has been sticking after hard acceleration. The sticking was a woebegone unison ring and I was hoping the squeal would be resolved when I cleaned the turbo but it didn't, in fact, it got worse.
It used to be occasionally and go away after warming up, but now it's more constant than not. It goes away when the VGT does its idle cycle and once you get up to speed.
Here's the sound - YouTube.....
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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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I'm relatively new to the 6.7 engine , I have a 2014 F-350 SRW with aprox 51,000 miles on it. Normal driving I see about 8 to 10 psi of boost even under moderate acceleration although at times it will go to about 18 psi at WOT and it does this with heavy loads. At moderate acceleration the boost will jump to 10 psi quickly but immediately stop there and sometimes as the RPM"s increase boost pressure decreases. Only issues I have had with the truck was a clogged EGR cooler.
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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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My delta runs about 10 to 11 but it has gone up to 17-19 towing nothing for 2-3 seconds. No fogging of the windshield, and carpet is not wet. Puking is on the top of the degas and the bottom, and I have change the cap three times now. My coolant level is below the min level if the truck is warmed up the coolant line sets about 2 inches from the bottom of the degas bottle. The pictures are so big I could not figure out how to make them smaller.
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I recently purchased a 2011 F350 chassis cab with no bed installed. Have a few questions regarding the exhaust system. When I inspected and drove it noticed some black smoke when under hard acceleration, nothing major though. Other that that the truck drove great. Have not got the truck home yet, a friend is going to pick it up and deliver it in a few days. Based on the visible smoke I was suspicious of the exhaust system but I have no knowledge of what the system is suppose to look like. My experience with diesels and for that matter gas engines is mostly from the days of mechanical fuel injected diesels (70's era farm tractors mostly) and carberated gas engines.
My friend stopped by a local Ford dealer and crawled around under a new 2015 Chassis cab to look and compare to this 2011. It appears that the SCR and DPF are not installed on this truck. Where they would normally be is a section of pipe with a section about 2 feet long that is 6 or 8 inches in diameter. Looking at some threads on this site I'm guessing this is a muffler that has been added since the truck is not loud. There is no DEF tank and all the wiring for sensors that would be attached to the exhaust system appear to be tied off to the frame and not connected to anything. The dealer didn't know the history beyond he purchased it on an auto auction and he installed a new rear end in it. Car Fax shows nothing of concern.
My question is should I now be concerned since have determined much of the exhaust system has been removed? I've read some threads and it appears that the only way this can be done and have the engine run well without any codes etc is if the removal is done with some sort of tune. Is there any way to determine who has done the tune? Will it be an issue when take to a Ford dealer for service?
I know if wanted to put the system back to stock would be large dollars, as long as the system runs well and is reliable I will be happy. The anticipated use of the truck will be to pull gooseneck trailer and will probably not see more than 1000 miles a year towing and 5 to 10k total in a year. I drive with a very light foot seldom ever pressing any vehicle to its limits. If still have the truck in 10 years when retire or at least cut back on my work then it may see more miles.
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Starts good cold and hot. Taking off like a grandpa on an evening drive don't notice a thing. Only codes that keep coming up are 2614 and 2617 which are cmp and ckp open curcuit codes and a software incompatibility code for FICM which is due to the updated software in the fresh FICM I installed. HPO pressures are good, has boost, idles smooth, revs nice when in park. New injectors (cause it was running rough especially cold before) and CMP and CKP (because of the above codes and didn't change)and ICP and IPR (last 2 installed because of HPO codes that are gone now with the IPR and ICP). Fuel pressure is 65psi (updated spring). When you step on it while driving it sputters and bucks like it's out of fuel, let off the throttle a bit and it purrs like a kitten. I'm a little stumped. I think it puffs a little white/blue smoke while it bucks.. not much tho. and it comes in little puffs. Took off filler cap and there is almost no blow by.
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I have been having an issue with my 4-5 gear shift under hard acceleration and know that a rebuild is due soon but I was wondering if any high performance kit available with all the clutches and friction discs needed to rebuild.
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I just recently installed a CTS2 Insight and wondering what the typical boost pressures I should be seeing without a load just normal driving. Right now I am seeing mostly 0 unless under acceleration then it goes up to 10 psi if I floor it I am getting 15psi.
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but 2nd time 6.0 psd owner. 2 weeks ago we picked up an '03 Excursion and were thrilled because it's been running like a dream and getting great mileage. However, according to my wife just yesterday, and after me driving it today, we have a big problem.
The engine starts, momentarily runs smooth, but then quickly becomes very rough. When trying to drive, it will make decent power, but it has an "off" feel to it, like it doesn't quite make as much power as it did, and it has a slight vibration to it.
Then when you coast to come to a stop, or pull in our driveway, it runs REALLY rough and badly, and usually stalls. I have begun the troubleshooting process. Here's what I know: Ficm tests good - 7 pin w/key on only gives ~46V (only tested w/voltmeter) Had an oil change done today and added a bottle of Hot Shot, will add the fuel treatment when we put more diesel in Believe ICP sensor to be OK. I unplugged it and no change Appears all injectors are firing since it ran down the highway decently, AND you can hear all injectors 'triggering' in a uniform manner with key on Turbo probably isn't sticking because made great power before, and decent power even with the problem NO Check engine lights / codes thrown
Details about the truck:Early '03 w/ 189,000 miles EGR delete done in a previous life w/ IPD kit Turbocharger replaced, in a previous life Headgaskets done, in a previous life (no ARPs though )
Questions & next steps:Even if there was no change w/ ICP unplugged, does that truly rule the ICP out completely? Could the IPR be the culprit?
Others? I have ordered a Scangage 2 and it will be here Tuesday. What's the first thing I should check? To me, this very much seems like an electrical problem; my gut tells me it's some kind of sensor or electrical signal error. What's the best way to investigate this path?
The engine turns over very well, and sounds very uniform so I don't think compression is the issue. Head gaskets have been done, although not with ARP studs. Batteries are very fresh and turn it over very fast. I have already learned a ton reading through these forums and just need some additional direction & brainstorming!
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My squeal is only present at my tail pipe at rear of truck its a 2007 f350 straight pipe . 6.0 engine. 300'000 miles . just bought this truck . believe turbo has been replaced but not sure as to when. This noise is very loud ear splitting at an idle. Builds boost just fine. No noise at turbo area other than the normal slight whine.
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Well I'm am getting a low toned squeal out of the left front of my truck every time I pull away in the morning. I thought it was the caliper sticking as it wasn't releasing but I replaced the brakes and that and it still is happening. I guess I am going to looking at the hub and see if the hearing is bad. What do you all recommend for a hub replacement. (OEM, moog?) I looked it up on white bear is part # AC3Z-1104-B right?
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Recently I have noticed my psi reading on my tuner hovers around .25 to .35 in the morning right when I start my truck. Normally it reads zero or is in the negatives. After driving around and stopping at red lights it will hover between .80 and 1.25. Now, I know that not a lot but its not what it normally reads.
Last week I went off road and my exhaust took a hit and loosened up and caused a small leak near the rear axle. I unbolted it and for the most part fixed the leak minus some alit air flow coming from the slits in the pipe. I'm not getting any codes and haven't noticed any decrease in performance. It does however seam to slow down quicker when I let off the throttle. I'm running an SCT X4 with dpf and erg delete and have a S&B CAI.
I called a performance exhaust shop and the tech said a small leak shouldn't cause any issue like that especially because its so far back. Another respectable vendor told me it might be that my vein are stick.
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after my DPF delete and fl0-pro 5" install, i've noticed a slight decrease in lower rpm boost. with the tune i have i can still get it wound up, but it takes a little "gettin on it" to get there. i miss the little bit of boost i had from stop lights and what not, or even cruising at 50 with a slight increase in fuel. i don't want to have to have it downshift in order to spool the turbo to get me that slight uptick in power.
i've heard differing opinions - "stock turbos need the 4" for more backpressure" ; "5 inches is great, b/c you could always use a couple extra inches" ; "there's no difference between the two, but you don't NEED a 5 inch until you're at 1k bhp".
i've got the 5" setup on there... that's that. how can i increase the reaction of the turbos? i've read about a wastegate adjustment (tightening), but not sure i'm ready to undertake that in the driveway, and i don't have access to a lift. nor am i sure this will correct my "issue." (i quoted it, b/c it's not really an issue, it's just a personal preference that i'm wanting to adjust to make myself a little more happy with the performance of the truck)
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Truck = 2011 F250 150,000 miles, no modifications, stock.
Truck lost power yesterday, no boost, and no codes. When driving on Friday, I started moving from a red light. The truck seemed very sluggish. Then I noticed it downshift going up a small hill that it never downshifts before. I looked, and noticed the turbo gauge at 0, no boost. I pulled over, turned it off, then restarted it, but still no boost, and the truck is very under-powered. I looked over the area, and do not notice any leaks, also no leaks underneath. I hooked up my OBD reader, and no codes., the boost gauge is on zero, and the truck has lost significant power. I no longer hear the turbo spooling.
I have spent the past several hours searching sites and forums (Started with FTE ), and it seems that most believe a restart of the truck has solved it for them. However, this is not the case for me, a restart, even after letting it sit overnight did not resolve the issue.
I did see one reference that replacing a NOX sensor solved their problem. This brings up some interesting truck history. Back in June 2017, my truck threw the following codes, P207F and P20EE.
P207F - Reductant Quality Performance
P20EE - SCR NOx Catalyst Efficiency Below Threshold (Bank 1)
The message said I have 200 miles until reduced power. Since it was a Friday, not much I could do at the time so I let it sit overnight, and then the next morning the message was gone. I plugged in the OBD reader and cleared the only remaining code (P20EE), and its been a very happy truck until yesterday.
So my question, can a bad NOX sensor cause the issue of loss of turbo boost, with no codes? Is there another possible cause?
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I have a 2006 f350 4x4 dually 6.0. The other morning when leaving for work I hard a loud air noise, like a jet. It only happens when the motor is trying to create boost. I have NO boost. No smoke. If I push the fuel pedal past 1/4, nothing. Its like its stuck and no more power at all. I have changed the boot from the turbo to the intercooler pipe. (looked like it had cracks in it). Checked the cold pipe, no cracks seen. Check the exhaust clamps, into the turbo, they are tight. The turbo is seeping oil around the seal. I took the inlet, fresh air, pipe off. Check the turbo spool for looseness, fins, spun the wheel, ran the engine and watch to wheel. Seen no issues. Where to go now?? No coolant leaks, no oil leaks.
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Having this problem, what to do to correct it? There is no hole in the boot and this just started about a year ago. Does not do it all the time.
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I was driving and went to accelerate quickly and had no power, checked the boost gauge and it had very low boost. Continued like this the rest of the drive, all gauges normal, no check engine light, not towing or hot. Got home then next time out it was back to normal.
Someting to be concerned about? Or just a computer hiccup. Truck is '13 with 66k.
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I've got an 05 EX 4x4 150k miles. Stock tune, EGR delete only ....
Driving along and everything was good plenty of boost no power issues. Got off the freeway and truck just stopped making boost. So I messed with it for a couple days. Cousin with a Mac scanner flaked on me so I was stuck using Edge gauge cluster and trying to trouble shoot.
NO CODES, No smoke, EGT's rise and truck seems like it is lean. Boost has fluctuated between 4psi to 11 psi. What should MAF be at idle?
ICP has been consistent with whatever boost levels were being made.
FICM 47.5
New MAP tube/nipple cleaned
New MAF
Clean Air filter
New fuel filters
VGT actuates
Accel ped in spec
Turbo spins free
New hot side CAC boots
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