Ford Super Duty (1999-2016) :: 2005 F250 - Code P0721 - OSS Sensor Circuit Performance Fault
Nov 2, 2015
I recently picked up a 2005 f250 SD 5.4 4x4... I was having issues with sporadic shifting and wandering shifts while cruising around 100kph, scanned it and came up with p0721 OSS sensor circuit performance fault.
I checked the harness and all looks fine, now I attempted to remove the OSS at the rear of the tranny, got the 8mm bolt out however could not, for the life of me get the sensor out. I tried not to use pliers to twist the sensor or anything for fear of breaking the sensor off and having bits go into the transmission.
View 2 Replies
Advertisement
(The truck is a 05 f250 with a 5.4l). The problem first started out with the engine temperature gauge spiking and then resetting itself when the truck is turned off and then turned back on. If I drove the truck for any distance it would go into limp mode and the CEL would come on. The code was p1299, which is the cylinder head temperature sensor, and I replaced the sensor but no luck. Then the shop and I went through all accessories hooked up and couldn't find a short until I remembered that my prodigy break controller would occasionally read "ol" or "sh" which both readings are from shorts. I tow a enclosed trailer about 85% of the time and the past week I have been towing it with a different 250 and the same break controller without a problem so I have eliminated the trailer. But the shop just said the problem was the controller and unhooked it.
Now the next day it threw the same code with the controller unhooked and the trailer hooked up. after thinking it seemed that it was happening when i accelerated so I took apart the 7 pin and sure enough there was a little water in it, but after driving it around for a little and no code being thrown I hooked my break controller up and it still was showing ol or sh so i believe there is still a short. Also I noticed that my voltage is reading right at 13v instead of the 13.8-14v it was reading before this issue arose. I think I have narrowed it down to the 7 pin harness and/or electrical in the break components, but do not know what would loop back to the temperature sensor.
View 2 Replies
2011 6.7... My truck is throwing code P2033 Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor. What is the part number for that sensor?
View 6 Replies
I have a 2006 f-350 6.0 and i went to fill up my truck with diesel. After that the truck did not start. Currently has the code p2285 - injector control pressure sensor circuit low. I tried disconnecting sensor, still no start.
I have the torque pro app and another 6.0 that I use for comparison. Check power at ficm 48 volt, flp 11.5v, FVP 11.5v. Hpop while cranking shows 1400 psi. removed oil filter and see low pressure oil ok, fills up reservoir. ipr at crank about 65%. fuel filter full of fuel.
Replaced the dummy plug on passenger side because originally hpop was very low psi 12. after replacement it went up to 1400 on cranking. What should I be looking at next, should I be removing ipr? should i be looking at crank sensor or cam sensor? Just installed 2 new batteries also because my dad kept cranking the truck until it died.
Checked to make sure fuel cut off relay not triggered, Ok. The truck has been having long cranks before it died. Also right now the injector cycling is 10 seconds long while on my other 6.0 it is about 4.
View 14 Replies
I have a 4r100 in my 2000 f250 7.3. I am getting a P1746-EPC Solenoid, open circuit. Does this mean this particular solenoid in the solenoid body has failed and should i replace the solenoid body?
View 3 Replies
I am running a 2008 Ford F-250 with the DPF Delete and the Mini Maxx Tunner. I have replaced the ECT (Engine Coolant Temp Sensor) as well as the EGR Valve and housing troubleshooting this issue. Both the Engine light and the coolant icon come on when I turn on the vehicle. I am getting a P0117 Engine Coolant Temperature Circuit Low code on the Mini Maxx.
From a cold start with codes cleared if I turn the engine to ON even without starting the engine the Engine codes will come on and the the Mini Maxx will read engine coolant temp 302 and will go into Defueling Mode. I have repeatedly tried removing and reattaching the connector to the ECT thinking it could be loose connection. I can't drive the truck because there is no power and i know the engine is not hot because I have let it sit all night before doing these tests. I do not have a scanner to test other than the Mini Maxx. Other notes: I have checked Coolant I have checked Oil
View 3 Replies
You know the "mechanic's fiances truck" problem. I recently replaced the cam sensor in my 05' F250 Gas. The check engine light had been on for a while before that and my truck rode great, however I now want to sell it and I can't do that with a check engine light on. It's got about 85k miles on it.
After replacing the sensor, the light went off for about 20 miles, but it is now back on and my truck seems to miss every once in a while on acceleration or cruising. Some days it's worse than others. The check engine light still says cam sensor, but the sensor is brand new.
My fiance is a mechanic, so I don't know all the details about code numbers and such. However, I want to sell this truck pretty soon, and I would like it to run correctly. His dad (another mechanic) seems to think it could be a coil and wants to wait for that light to come on, but I would rather fix the problem and sell the truck!
View 1 Replies
Ok says injector pressure sensor low first guess was the upgrade to the blue spring. Did that code clear for a day then comes back on looking at the hfcm but kinda unsure? Came on after we got the real cold snap and i had to buy a block heater I don't see one on here i also added diesel 911 to the tank this is a 05 f250 w 6.0l....
View 2 Replies
My 5.4 F250 with 200,000 miles having many problems... It all started a few months ago, when the cam needed to be replaced, and a cam phaser was also replaced at the same time. It ran fine after, then threw a code for cylinder 3 misfire. The guy I took it to said it was due to the huge crack in the exhaust manifold and that was messing with the o2 sensor coming up as a cylinder 3 misfire. So, got the new manifold and it was good for a few weeks.
Now, starting the other night, Friday the 13th, it threw a CEL when I was coming into the driveway. It had been throwing a code every once in a while, and I brought it to school to scan it Friday the 13th but there was no code. So, I assume that it is an intermittent problem, no big deal. When I go to get in my truck to go to work a few hours later, the 5.4 cranks... and cranks... and cranks.
I get it to fire up, and it dies again. Run codes, and it says that the cam positioning sensor is broken. Replace both of them, still acts up ie. doesn't start when it does start it runs very rough and stalls. Get it up to my uncles shop, and replace fuel filter.. Still runs like trash. Run codes now, and it says rich/lean in bank 1.. My uncle tells me to move my truck out of the shop, so I start it up, and it runs great. No hiccups, it idles perfect as I move his truck out of the shop first.
I park my truck outside and let it idle for about 10 mins, and when I come back out it is still idling, perfectly fine. I get in, put it in reverse, and get about 20 feet when it dies and will no longer start back up. What could be going wrong?! Sick of throwing money into this thing! At one time while started up in my uncles shop, it was blowing black smoke, as if it was a diesel!
View 10 Replies
I have a 2005 F250 with the 5.4. This truck has been one thing after another, as you can tell from my other posts. The problem this time is, if it cranks hard to start because it's cold(can be anywhere from as high as 32, but usually in the teens) it will start just fine, then several minutes later throw the check engine light. Put the scanner on, like clockwork, 4 codes, always cylinder 1 misfire pending, misfire on first 1,000 revolutions pending, cylinder 1 misfire confirmed, misfire on first 1,000 revolutions confirmed.
Sometimes you can hear a slight lope in the idle when it does this. Clear the codes, runs perfectly fine. It will never do it after it's been started for the day. Some days you would think for sure it would throw it when it's frigid and the winds been blowing on it, it doesn't bother, other days you wouldn't think it would, and it does.Can the computer think that since it didn't start right up, it misfired?
View 9 Replies
I've owned my 2012 F-250, 6.7L for less than a week and it has a check engine light. The local dealer can't see me for a week, and I need to leave town next week.
I went to AutoZone to have the codes checked and this is what they came back with:
P2033
Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 2
P2031
Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 2
Can I drive on these codes, or should I park the truck until Ford can see me?
View 2 Replies
2001 F250. I have had issues on other trucks where you get a funny-acting speedometer with a code that comes up as VSS (sensor on top of the rear differential)....And it shifted exact same way.
My new truck speedometer is totally fine and the ABS is on with codes:
C1158 Left front speed sensor coherency malfunction
C1155 Left front speed sensor input circuit malfunction
Shifts about the same way on the trucks with bad VSS.
Question is will a bad front speed sensor affect the way the trans shifts? Doesn't happen all the time. If you go slow it shifts smooth. If you pull off fast a barely noticeable jerk from 1-2 and 2-3....
View 3 Replies
I have a f350 2000 4x4 automatic 170.000 miles. Service light on and OD light flashing. I have code p1747 "EPC solenoid short circuit"
This code make that the engine runs slow without power and hard shifting. I change all the solenoid body and check all wiring.
Later using a voltmeter i separate EPC solenoid wiring and see that have 5 volt. If I don't accelerate more 2000rpm OD light is not flashing and truck works normal but slow.
When I accelerate more than 2000rpm OD light begin to flash and transmission fail more. I check that EPC wires mark about 0 volts when OD light is flashing. Transmission hydraulic system seems to be ok because oil is very red and clean. Maybe another sensor is making this failure....
View 14 Replies
Got a 'Tire Pressure Sensor Fault' message a few times on the way back from Florida. Tire pressures were all fine. Hate that it doesn't say which monitor has the problem. Anyway... it comes on, but after a few minutes goes back off. Saw it a total of three times over the course of 1,000 miles in two days. Is this the sensor failing and requiring replacement? Or is the system itself starting to fail? Would ESP cover this?
View 6 Replies
My Bank 2 Sensor 2 oxygen sensor is faulty and I need to replace it. The guys at the parts store were pretty certain it is downstream driver's side, but I just want to make sure before I PB Blasted and removed it. 2008 F250 SD v10 ....
View 1 Replies
I have a 2006 F-350. I got a code p2623 ipr circuit open. I ordered a new one and currently waiting on it. I pulled the old one and the screen has been replaced already. How often do these valves go bad? Is there anything else I should check?
View 6 Replies
The warning in the title has been appearing for months. Push reset and the display message goes away but the orange light stays on. No rhyme or reason. Sometimes it's gone after a restart for a day or two. Sometimes it stays on no matter how many times the truck is shut down and restarted in a day.
So I finally took it into Ford for service today because the truck is still under warranty. They ask if the tires have been replaced. Obviously they have because I've got BFG KO2s that are a size or two bigger than stock. But I explained that the tires have been on for several months and that the issued did not present itself when the truck came out of the tire shop. It didn't happen until a couple of months later.
So they tell me that their tool can't even detect that any sensors are present and that they'll break down a tire to check and see that a sensor is there. Two & a half hours later they tell me that they've ordered a body control module and cut me loose with the truck. They'll call when the part is here.
View 14 Replies
So I just replace my Cat. Converter with all new sensors in them. I just replaced my spark plugs. (I'm knocking out these check engine light problems) and I think I'm getting close to the root as to why these other parts went bad. Why my o2 sensor would be stuck on "lean" ....
View 5 Replies
Have an intermittent miss I can feel when driving 2006 F250 5.4 l 4x4 stick; Freeze frame from Cen-Tech 60794 (from Harbor Freight) scanner follows.
DTC CNT 0
DTC FRZF P 0352
FUEL SYS1 OL - FAULT?
FUEL SYS2 --
LOAD PCT 25.9
ELT (DEGREES F) 186
SHRTFT 1 0.0
[Code] ....
I can operate the scanner but what these ranges should be. What might be causing the miss? This scan shows 951 rpm, I was idling along in 1st in traffic, but I have also felt the miss at 75-80 mph (about 2300 rpm) on the Interstate and at other times, with light loads in the 1500- 2000 range in town.
View 2 Replies
My scanner reads P0001 Fuel Volume Regulator Control Circuit Open. My truck shuts down without warning, runs great otherwise. I've changed 2 grey CPS units and now have the Black IH one installed. What the Fuel Volume Reg.is? Is it the IPR on the HPOP?F250SD 7.3 225,000 miles.
View 10 Replies
I'm having a turn signal issue with my '02 F-250 that started this morning out of the blue. Seems that when the signal switch is set for a right hand turn and the brakes are applied, the signal will then become solid, not flash, and then blow the fuse. Evidently something with the brake light circuit is overloading the turn signal circuit and not canceling when the turn signal is activated.
Here are a couple of things I have tried to narrow down the culprit.
1) Left turn signal works fine regardless if the brake lights are operating.
2) Brake light circuit operates fine by itself.
3) Right turn signal works fine but there seems to be a back-feed of power causing the center third brake light as well as the left side rear brake light to flash in unison. If brake lights are then activated, the flash stops and becomes constant thus blowing the fuse.
4) Emergency Hazard lights work perfect but the center third brake light again flashes as well which reverts back to some type of back-feed of power. Also, if brake lights come on, flashing turns to constant light and then blows the fuse again.
I guess my question is,. does this seem like the multi-function switch needs replacing or could this be a relay issue of some sort? I don' think its a ground issue simply because the left turn signal circuit as well as the center brake light circuit are both being breached when the right turn signal is activated. Your thoughts?
2002 F-250 Super Duty 5.4 V8
View 3 Replies
