Ford Super Duty (1999-2016) :: 2011 F250 - Engine Idles Rough Until Warms Or Accelerator Is Pressed Down
Jun 19, 2016
On a cold crank the engine idles rough until it warms or the accelerator is pressed down. Also runs rough going up hills or towing. Check engine light is on and is throwing the code for bank 1 to lean and cat performance below threshold. Cats have been tested, good. Fuel trim tested, good. One mechanic said noth8ng is wrong with it well, there is. 2011 f250 6.2 gas...
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I have a 2002 F250 with 189,000 miles. Im having some very bad issues that im trying to fix. The truck idles rough, with fluctuating RPM's. In certain speed reanges it also shakes and runs rough. If I turn the overdrive off the shaking pretty much stops, but it still accelerates pretty slowly. There is also a whistling noise from the front of the truck until the engine warms up, someone told me it sounds like a bad intake manifold? Does that sound right? What could be going on with my truck? All spark plugs and coil packs have been replaced, as well as the fuel injector rails.
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I have a 99 F250 7.3PSD; I upgraded the tranny cooler after an episode of overheating while backing up a hill.
The truck has done well, hauled a few tractors with it, but recently I have noticed something that seems scary. When going downhill, I often relax on the accelerator. Usually there is some passive engine braking as happens with any auto tranny. Recently, the truck just coasts - it is as if you feel the tranny shift into neutral and you just coast, except I didn't shift. While this is happening, the accelerator pedal will not rev the engine. You can put the pedal all the way down -> rpms at about 6-800. No response.
At the bottom of the hill (so far) the engine gets louder. the rpms drop, and the accelerator works again. Every time, so far. But, if IO am going down hill, and want to accelerate to execute a laneg change or something - I can't. AFAIK, everything A-OK after the new tranny cooler. levels, etc.
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I have a 2005 f250 with a 5.4 3v. I bought the truck with a cracked passenger side exhaust manifold about a year ago. We'll here recently the crack got worse and was giving the code P0171, so I had a shop replace it. I picked the truck up and not even a mile down the road it started idling terrible at lights and had very poor acceleration. And it gave me P0174 this time. It's only gotten worse now it's reading P0172, P0174,P0161, and P1489. I've replaced the spark plugs, MAF sensor, both vct solenoid, an the upstream o2 sensor on the passenger side. I also know I don't have any intake or vacuum leaks, I've had a shop check and so have I. It's starting to get expensive just replacing stuff. So, maybe I have a clogged catalytic converter ?
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My 05 f250 v10 runs rough at points and sometimes quits when driving. I find it too that I can't rev it in park or neutral and sometimes when it is cold I can. I was wondering if it was a tps or something with the intake...
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Need this software that would be willing to run a diagnostic on my truck? I replaced all the glow plugs a year ago and the relay a month ago. It idles really rough when it's cold (first start of the day with outside temps even at 90 degrees). It has no power for about 10 minutes. Sounds like an old John Deere 2 cylinder tractor for a few minutes. I have 370K miles on it. After it warms up it runs good. Plugging it in doesn't make a difference. There is no smoke while it is warming up. I have noticed when I accelerate quickly, it blows black smoke (not heavy but when following it you see and smell it).
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My issue, just purchased f250, 2004, v 10, manual transmission, state vehicle with 32,000 miles but was a plow vehicle for localRMV lot, that said, great shape and runs strong but I get a clunk and shutter when I am in reverse and only when I push down clutch before stopping. Doesn't do it starting forward or reverse, only reverse and when I push clutch in before stopping. Did have a friend drive and looks like the transfer case is moving, as if mounts or bolts are loose. Does this make sense and could bad slip joints be putting excess torque on ?!?!?
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So, I'm slowly but surely eliminating a terribly shaky front end on my 2002 F-250 7.3L 4x4. First was a new carrier joint on the front drive shaft. Didn't work much, but the shop said the darn thing was falling apart. Next thing I did was new wheel bearings and manual hubs. Less vibration for sure. But the last remaining issue, in terms of vibration, is that when I let go of the Accelerator going at any speed above 60 MPH, it makes a horrible horrible noise, and I could feel a vibration. It shakes the whole truck, but I can very noticeably feel it directly in the gas pedal. It's really only an issue during deceleration. What could it be??? Drive shaft U-joints? Torque Converter? Something else in the Front End? Something in the engine even?? I don't exactly have the funds to tackle every possible solution.
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I have a ford f250 with a 5.4l 2v engine and lately it started to shake when it idles. i have changed all the ignition coils and spark plugs, the injector are fine, but i cant seem to pinpoint the problem. the weird thing is that there are no codes. the fuel trim on bank 1 is around -8 and bank 2 is at almost positive 20 and higher.
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I have an 02 f250 5.4. I just did the intake manifold. I also changed the spark plugs and the valve cover gasket. Following this I drained the oil and filled it with fresh oil.
It started right up but it felt like the engine was really vibrating and running rough. The check engine light than came on. I don't have one of those tools to diagnose it.
What could be wrong?
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1-11-11 built F250 with the 6.2. 45K miles. Took it to my local HD truck shop to have the code read. The reader said "Evap pressure sensor switch malfunction", "vac above pressure limit wouldn't bleed". He cleared it and it has now come back.
1. Where is said switch located? Is this something I can do as I'm a seasoned wrench but I'm not dropping the tank in my driveway in the winter.
2. Is it in the tank or outside the tank?
3. Has there been any TSBs or recalls on this before I attempt to repair?
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I'm having issue with my brake lights. Checked for voltage and nothing. Checked the fuses under the dash. Checked the brake pedal switch and have power going out when the pedal is pressed. Is there a relay or something somewhere else? 1999 f250 7.3 superduty....
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This happens very often when driving around, at first it was only if i stepped on the accelerator to quickly or braked to hard, the check engine light comes on and the truck idles. Nothing seems to be wrong except when i step on the accelerator nothing happens, it lasts about 5 seconds then the light goes out and im on my way. it has started happening more and more just at random times now. it seems quicken the down time if i pump the accelerator.
Second, it occasionally feels like the transmission slips. I'll be driving and when I accelerate the rpms will go up, then what feels like the tranny slipping and the rpms go down. there is a distinct rocking motion when this happens, but it works if I turn it off and on again, or if i just step on the gas the next few miles it seems to subside.
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I have a 2007 F250 4X4 6.0 diesel. When first started it idles extremely rough to a point it sounds like a old gas engine missing. But after it warms up for about 15 minutes it runs and idles like a new truck. I'm thinking it's the injectors if so is this something I can change/clean ....
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So after this weekend's hurricane my 2011 f-250 started to making a noise when I accelerate. I don't know if water got in some where. But there's no MIL light coming on.
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The engine was just rebuilt, 7.3L diesel. New bottom end, cam and turbo also new harness for valve covers and injectors, new #8 injector(#8 cylinder lost compression). The engine cranks and idles great. Run it up to 1800rpm - 2200rpm and you get a miss or skip. Almost like the engine turns off and back on very quick, and it makes a clank noise. No codes, reading it with a OTC Genisys 4.0. I also swapped the PCM and IDM with another truck and it still does same thing. Other truck runs fine. Year model 2000 w/ 230,000 miles
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The truck is in my Sig 01 F250 5.4
Just got back from a long trip with it. Parked it for 3 days, all was running fine. Went to dinner Sat night and all was great, left the restaurant and as soon as I started the engine I noticed a slight vibration. As soon as I hit 42 miles per hour, it started shaking pretty good. I pulled over and checked under the truck to make sure I did not have anything I was not supposed to hanging down.
Driveshaft looked good, nothing leaking from rear end or tranny. When it does vibrate, the Tach shows the unhappiness as well. This a.m. driving to work it was vibrating at all speeds and shifting was very rough, had a hard time deciding if it wanted to be in second or third gear. I don't think this is drive train issue... When it shutters and sputters at 40ish MPH, its almost like it loses power and I have to let off the gas. and then under power it shakes badly.
I had the super chip settings for performance tow when this started and then I changed it back to stock settings, thinking it might work, which it only got worse. Changing the settings with the Superchip you have to disable the fuel system and I do this by pulling the fuel pump fuse under the hood in the power distro box.
I think the ujoints are still good, the oil and tranny fluid are spot on. Hubs are locked but in 2WD. Had all the front end replaced 15K miles ago. Brand new tires and wheels in Sept, front end alignment done at same time, front brakes were 90% and rear brakes at 20%.
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2 weeks ago I had the check engine light come up on my 2011 F-250 6.2 XLT. Did a diagnostic check and Codes P2098 and P2272 came up. Did some research and found out the second O2 sensor on passenger side had gone bad. I replaced it with a Motorcraft O2 sensor and cleared the code. It has not came back since. But still not getting the fuel mileage I got before. What else could be wrong?
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I have a 1999 F250 Super Duty 5.4L, 118,000miles...engine seems to idle somewhat rough but tach doesn't seem to move off 1000rpm & when giving slight acceleration seems to act like its missing, shaking . But under acceleration moderate or high purrs like a kitten! Always starts good , few cranks. Any hints on the what issue might be?
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2005 F250
123'xxx miles
EGR delete kit
This is my problem, the truck Idles then revs by itself and throws black smoke.If i leave it on it eventually seems like it floods and shuts off,when i first noticed this it had a loss of power and was having a hard time shifting gears, it would idle fine but when i would try and drive the truck it had no power. I changed the diesel filters and the air filter and the problem persists.
Could this be a bad turbo? Injector?
Here is the video of the problem.. F250 problem. - YouTube..
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My 2003 F250 6.0 It started about a month ago and got worse. Let truck idle for 4-5minutes and idle will jump a few hundred rpms. Got worse as it idles and cant figure it out. It eventually died and died once while driving but starred right back up.
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