Ford 6.7L Power Stroke Diesel :: 2012 - Shaking / Gasping At Around 40 And 70 MPH
Jun 17, 2012
I have a 2012 F350 KR with 14,000 miles. Over the last month, I have had 5 or 6 instances where Im driving and barely on the accelerator and the engine or transmission shakes or vibrates violently. Its happened at around 40mph and 70mph. It seems like the engine is not getting the right amount of fuel or maybe its the transmission stumble or shake that I have heard about. It is a fast back and forth of either the engine knocking or gasping or its the transmission. It can be very bad.
I went to the dealer and of course, there were no thrown codes on the pcm. They did the reflash and 20+ miles of driving and said there is nothing wrong. Last night, I was on a country road at about 40 mph and it happened again. If I press the accelerator down harder, I will stop. If I keep the accelerator at the same spot, it seems like it would just knock, or shake violently forever. Do we think this is an engine issue or a transmission issue?
Its not a slow back and forth of the transmission like Ive seen in older cars. IF it is the tranny, its happening really fast..if not, its maybe the engine?
I cannot tell or don't have enough knowledge to know if its an engine prob or transmission. I just know it sounds and feels like the world is ending and the shake, knock and vibration is going to tear the truck up..
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So I have just over 14k on my 2015....... I love the truck but have had a few small issues. I had a water leak coming in from the roof that would leak through the grab handle. Nothing major dealer replaced one clearance light seal and they said the windshield needs to be re sealed.
Then I had a god awful irritating squeak in the dash..... It only does it late In the day when it's been hot. The dealer said it was a loose air bag. I have had the truck back a week and it's doing it again.
Those are little issues that will get resolved...... I hate having problems with a brand new vehicle but I understand it happens and that's what warranty is for.
I also reported a bad shake to the dealer...... The truck will shake very violently and have a very loud "diesel" sound. It's very specific at when it occurs. It has only done 4 times in the past 6 weeks including today. The odd thing is the 4 times it has done it has been the same time of day in the exact same spot on the exact same road!!!!
Basically I leave my office sit in some traffic and by the time I get to the parkway it has been35 minutes or so. Only happens in 6th at 60 which is roughly 1,400rpm a slight load due to a small incline and it shakes real bad! The typical "diesel" sound you get when under a load is very pronounced almost to a knock. It will continue to do this as you slowly increase throttle until it down shifts and then goes away. I also caught it doing it and I manually shifted to 5th and it went away.
Because of the rpm at which it happens with slight load only doing it in 6th I lean to a Trans issue and more so a converter problem. It feels like converter shutter. I just don't understand the engine sound.
I gave very descriptive info to the dealer..... Several techs drove it and could not duplicate. I just picked the truck back up last Thursday and the dash squeak is back and the shake happened yesterday and again today. So I am a bit irritated to say the least.
I really hate the fact that I know there is a problem but I also understand if a tech can't duplicate it he can't diagnose it. However today I did get a video of it with my phone so they will know I'm not making this crap up!
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I went out to the store today all was fine came back out and started driving got 2 miles down the road to a red light and the truck about stalled no power it doesn't smoke at idle but revved up it blows black and some white and the truck shakes. I am thinking its stiction or bad FICM????
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This morning I noticed when I started the truck had a rough idle shaking truck. The truck felt weak. Boost would go up but truck felt like it was in sand. While coasting on the highway at 50-55mph the truck not only lags in power but vibrates viciously until the overdrive kicks in that vibrations in cab and ssteering wheel go away.. What might be going on?
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Finally after 423k plus miles on 7.3, bought 13 250 with 6.7, love it but... I noticed some shaking @ 45 mph, below or above no problem and only when cold. I was thinking it could be tires, they are Conti 18" original with 65 psi and I do not pull anything.
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I replaced the all 6 tires and all 3 rear u joints on my 03 dually and steering all feels tight but I still get a vibration above 60.
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Was on the way home today and was taking a long sweeping left-hand curve at 60 and got a horrible shake in the steering wheel. Kinda scared me a bit and let out of the throttle a bit. Didn't happen after and never has before. I'm under the impression it is more shocks maybe then steering, Reason I say that although I don't get a lot of bounce if the road isn't perfectly smooth I can really tell it. What do ya'll think?
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I'm new to diesels. I just bought a 2004 F250 with the 6.0 V8. I have the high and low circuit, contribution codes on cylinders 4 and 8. I've only had the truck for a few days but I've been reading a ton. The symptoms are hard start, rough idle/shaking, no power when cold. When it heats up and I'm over 2000 RPM it seems to be just fine. Even when hot and below 2000 RPM it does ok. I've check the FICM. It reads 48V with key on and 48V running. My plan is to do the following:
Change the Fuel Filters
Change the oil filter
Change Air Filter
Change oil with 5-W30 synth and I have both Hot Shot/Rev-X
If that doesn't work, I'll replace the two injectors. How does that sound.
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I purchased a 2011 ford f250 6.7 diesel today from a dealer in indiana. During test drive i noticed a shudder when i was doing over 60 and i immediately brought truck back and told seller about it.so he gets in and we drive it got it over 60 i hit brakes.it shuddered again but not as bad.long story short seller said it was prob a shock or strut or ball joint.
So I bought the truck anyhow and during the 600 mile drive back home and only when i was in top gear the truck would shudder when i hit a large bump.i would then slow way down to under 40mph and it would go back to driving normal.it did this a couple times but i noticed if i kept it under 60 it didnt seem to happen when i hit bumps.
So I get all the way home and check engine light comes on and i mean literally as soon as i got home from 600 mile drive. I plugged in my engine diagnostic tool and it shows a P0284 code. Are these things related? I called the dealer back and he says the truck is as is but he will look into it. I don't want to do further damage driving.
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OK I know it's not a 6.0 or even a diesel. I had my Ford Expedition(2005) in to have rear main bearing seal, transfer case input shaft seal, etc, which included dropping the transmission. When we picked it up I noticed that it now shakes when in Park and Neutral when at idle. The shake cycles every 2 seconds or so, shakes for 2 seconds, smooths out for 2 seconds, shakes for 2 seconds, etc. There are no codes thrown, it runs smooth in gear running at interstate speeds and in town driving. They put the scanner on it, unbolted the transmission and re torqued them, and a bunch of other stuff. They are lost. I though maybe the torque converter wasn't in balance or something but they ruled that out.
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Couple days ago the cab of my truck started shaking some more than usual. Its gotten worse now, however. Happens the worst around 60-80km, light on the throttle just cruising in overdrive, whole cab shakes badly. Chop the throttle and its completely gone, any heavy on the throttle and it's gone as well. Does it loaded and unloaded. Okay at highway speeds but like i said around 70km its bad. I've got my guesses but what really it is?? Truck runs fine otherwise...
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I'm having a problem with my 6.0 back in September I started to notice a little miss with some black and white smock while accelerating so I took the truck to a power stroke specialist near my house to have it diagnosed they said my number 5 injector was starting to go bad so just this last week I finally got up enough money to get the injector changed I got the truck back yesterday from the mechanic. While driving I get a lot of shaking right around 1500 to 2000 rpms when I let off the accelerator it smooths out if I mash on it and keep the RPMs above 2000 it smooths out the truck still has a lot of power no check engine light has ever been on through this whole ordeal and there's a rough idle I guess the best way to describe the shacking would be if the truck was a standard shift and you were pulling a hill in to hi of a gear.
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I am new to the ford deisel. I have a 2005 F250 6.0 liter power stroke. it has been bullet proofed with EGR delete. Has an after market intake. An Edge TC tuner, and alot of extras. My question is why am I having shaking in the front end when my foot is barely on the gas. If i give it more gas it goes away as soon as the boost kicks up to around 2 or 3. It does this every time I take my foot on and off the pedal. It will only last for a second if i give it alot of gas. But if I barely touch the pedal it will shake the whole time until the boost kicks in.
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My truck is fairly new. Its a 2015 Ford F350 with 6000 Miles. I live on the east coast in a 4 seasons climate. Its summer the average temp. is in the lower 90's. Recently, I have noticed that my truck has been shuddering and shaking between 5th & 6th gear.
It started when I was changing lanes; I tried to accelerate going about 45mph, and shuddering real hard. It was difficult to maintain my speed on a level surface. It was almost a total loss of power with no trouble codes.
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I know this is an old subject that comes up from time to time. Most will notice it after an oil change or the first oil change anyway. Yet, some will never notice or experience the sound.
It is when you first start the engine, it has been described as a can of marbles being shaken or popping noise, maybe a metallic knock.
I have 17K on the truck now and this seems to be getting louder and more annoying. Sometimes it is louder than other times, and sometimes I don't hear it at all. I have always changed my oil right at 5,000 mile intervals. Fuel Filter at 13,500.
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When the truck shifts into 5th gear i instantly feel a constant vibration and noise until it shifts to 6th gear. This happens nearly every time while driving at 40mph. Rpm range 1200 - 2000. I bought the truck new on June 30th and noticed the problem on my way to work on Monday July 2nd. Took it to the dealer on July 5th and the tech said it was the torque converter slipping. I drove it home because they didn't have time to work on it. Took it back on July 12th and the dealer has had it since (currently 30 days) They originally told me it was not the engine or transmission and it was an exhaust problem. Last week they said it was the motor mounts and said they would be done.
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My 2012 diesel frequently stalls momentarily after I touch the brake. This is very annoying as I drive in heavy traffic and often have to touch the brake then accelerate to merge into freeway traffic. The dealer service department said this was a 'feature' and not a flaw. Is there any way to eliminate this issue?
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The truck (2012 f350 6.7 lb cc 131,600 miles) started fine. Then while i was setting up the defrost i accidentally hit the ac button. Well I then hit it again to turn off. At that point the engine stalled. Which has never happened to me before. I started it back up which took a bit longer to get it to fire. It now says "Reduced engine power" and runs kinda rough. I thought well im at the end of my fuel filters life so why not change it since i had one. Well the. The FF housing broke. After replacement FF housing and filter it will no longer start. I took the filter back off and checked to see if it was cross threaded or sucking air. I checked that twice. Still no start cranks fast and strong. Codes are
P2138 something to do with the gas pedal
P0193 fuel rail sensor A high
P06A6 voltage on circuit A is whacky (paraphrasing here)
P0532 ac pressure sensor low
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Stopped at the store, came out, started truck, ran for two seconds, shut off, hasn't run since,had no codes,or any other issues. I have checked all the fuses,breakers,main power supply off of passenger battery, still nothing. I have head and taillights, power points on dash, dome lights, chime for headlights. 79674 miles.
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I Have A 2013 F250 I Have A H&S On It. I Have It Delete. And The Cel Comes On In The Morning, Ill Get The Code In The Morning. But It Has Something To Do With Coolant Temp Sensor. It Also Does Like A Bucking/Power Surge. Boost Goes From 0-10-15 ,When you Hold Pedal Steady. Do I Need To Update My H&S Or What?
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I have a 2012 F-250 6.7L w/8K miles. I have been struggling with this issue for 6 mo. The engine feels like its missing at low RPM. I would equate it to the feeling of a bad coil pack in a gas engine. The boost indicator drops to 0 for a split second then recovers. The dealer says they can't find the issue but went ahead and replaced the turbo. After the turbo replacement It got worse. This is an intermittent problem with no codes.
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