Ford Super Duty (1999-2016) :: F250 Idles Good But Skips At 1800 RPM / No Codes
Oct 3, 2012
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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I'm in a real jam because my work truck won't start. 1999 F250 7.3 Diesel 157k mi. - Air and fuel filters were replaced in the last 500 miles. This pup ran fine when I parked it last Wednesday before the holiday.
Checked for start last night because I'd been having battery issues, Both were replaced the previous week. It's cranking good but just won't start, not even a bit. No wait to start light, oil level is good, can not get obd reader to link.
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My 2012 F250 6.2L (Gas) engine developed a noticeable drone/vibration when in drive between 1600 - 1800rpm. RPMs above and below that range is fine. But when accelerating, as soon as the RPMs reach 1600, you can feel a slight vibration through the gas pedal and a noticeable sharp draon/moan up till about 1800 or 1900 rpm, then its normal.
I took it to my ford dealer and took the service manager out for a test drive. He said that there is a drone and slight vibration withing that RPM range. He thought that the engine mounts may be loose. But aside all that, he felt something was off and wrote up the service order.
When to pick up the truck and now the service manager changes his tune and said that the drone is normal and happens on all 6.2L super duties.
To be honest, I have the feeling he is pulling my chain.
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Is there truely no cure for exhaust flutter on a 2002 f250 V10, bedsides putting on headers??? I have the the sound at shift points around 1800-2200 rpms. Sounds great before and after these points....
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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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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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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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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 2003 f350 4WD that studders or skips only when in reverse. I noticed it the other day while plowing. The noise seems to be coming from the transfer case but only in reverse. If I go real easy it won't happen but it will happen if I gas it a little. Happens both with hubs locked or unlocked. BTW it is a manual shift transfer case and manual hubs.
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05 5.4 F250 4x4. Keep getting those codes. Can't find any vacuum leaks. swapped rear O2 sensors. Fuel filter twice in last 11k miles last time was 1k ago. Will the 430 code cause the lean codes from a bad cat? I've been getting the 430 code for at least 4 mo's.
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My 2005 f250 5.4 with codes p0171 and p0174. I have replaced fuel filter, MAF, Checked for vac leaks by smoke and water test.
I don't have a way to check fuel pressure on this thing since it must have been to much trouble to put that test port on the fuel rail!!!
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Where to start. Have had to replace a few COP's in the past and replaced all spark plugs 20k ago. Truck runs rough at idle and sometimes stalls when changing gear. Strong exhaust smell when sitting idle. If I put my foot in it there is hesitation. Engine seems to smooth out quite a bit but also seems like it's getting more power in stages. Codes P0426 and P0345 ....
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Ok so my F250 died last night. I read the Pcodes and came up with P2198 and P0506. I am pretty good with fixing the truck but need to know exactly what is wrong.
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Long time follower, first time user. 99 F250 V10 180,000 miles: About a month ago I replaced both upstream oxygen sensors. I know have the following codes:
0135 and 0155 for Upstream Heated Oxygen Sensor Heater HTR 21 and 11
Circuit Malfunction Bank 1 and 2
1409 for Exhaust Gas Recirculation Vacuum Regulator Solenoid Circuit
I checked fuses and PCM relay and all are good. I have 12 volts to both oxygen sensors and no noticeable wire burns. One of the possible causes given on code printout for 0135/0155 is to check for a disconnected hose to the EGR. All hoses are good. One of the possible reported fixes for EGR code 1409 is to repair oxygen sensor wiring. So my question is: Are these codes related. If I replace the EGR vacuum regulator solenoid, will this clear my codes from the oxygen sensors?
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I have an intermittent problem with my 09 F250 Diesel. A few times now under hard acceleration I have had the trans seemingly get stuck in 3rd gear. The little service required wrench symbol showed up on info screen but after shutting off the engine no codes were present. A week or 2 later this happened again and I ran diagnostics through my Spartan tuner and got P0771 and P2704 for codes.
Again they cleared when I shut the engine off. Since this is an intermittent problem, only after hard acceleration, would it make sense to change tranny fluid, maybe do a tranny flush? Or am I off to the dealership for a rebuild?
2009 F250 Lariat Crew Cab Short Box
Spartan DashDaq
S&B Cold Air Intake
4" Flange-back w/6" Can
Package by Dirty Diesel Customs-Red Deer Alberta
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I just got my 2005 F250 diesel out of the shop. The errors codes P0299 and P2263 were listed on the computer. The service done, was to clean carbon from turobo charger and service the EGR valve. I talked with the mechanic and he recommended that I use Cetane Booster Additive. What would the Cetane Booster do? How would it prevent the carbon build-up in the turbocharger? What should I do to prevent turbocharger carbon build-up?
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My '05 F250 (5.4) started misfiring and threw codes for p0300, p0305, p0307, p0308,and p2198. I used an inline spark checker to check cops, which all had spark. Replaced 5, 6, 7, and 8 plugs and cleared codes. Ran truck for a few minutes and codes came back. Switched #5 and #6 cops and cleared codes. 5,7,and 8 cylinders still misfiring (same codes). Truck only has 36,000 miles and spent alot of time just sitting. Plugs were original plugs.
Replaced 5-8 with Autolite OEM replacements. I haven't checked cops for resistance yet. Weather was pretty cold when problem started. Threw in about 10oz. of Lucas to no avail. I had this problem last winter with the same cylinders throwing codes. Threw some Lucas in the tank and idled truck for approx. 1/2 hour and problem went away except for stumbling most every time truck came to a stop. I'm starting to wonder if it's a coil or a fuel issue.
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After finding that a battery was low and not getting charge, they found the alternator was bad. Replaced that. Next the battery that was low was able to be charged and did not effect the other battery. Both batteries have been load and charge tested and they both read 84% charged. I am told this is "good."
Next I swapped both fuel filters and did the oil change as well. I finally got a chance to get my friend to run his scanner on it. The results are injectors and FICM. The codes are PO261, 264, 267, 270, 273, 276, 279, 282, and finally 611. I guess this means that the FICM is toast.
I have tried salvage and no one has anything. I guess I still don't understand how this truck is capable of running daily with the computer throwing every code dealing with the injectors and the computer that runs them.
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I have a 2008 f250 superduty with the v10. Just today I was driving and engine picked up.slight miss it's rainy. I thought coil pack, but it left me on side of road. Got fired limped home won't go more than 40mph. Runs rough, no power, checked codes and get P0340, p0357, p1336, and P2195.. Where to start.. My daily driver and have to get back on road.
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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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