Ford F-150 (2004-2008) :: Transmission Malfunction - Code P0721?
Aug 25, 2011
My transmission failed on me again last night, truck won't move (I still seem to have reverse). Was cruising down the road at 85km/h and Trans Failure came up with a P0720 (OSS sensor Cct.) and P0722 (output shaft speed sensor no signal) codes. The first time I only got a P0721 code.
This is the second time in 6 months. Last time I spend 3200 to get it rebuilt locally. i don't do any towing, I don't spin my tires etc. and I haven't taken it off pavement since it was rebuilt so I'm not sure why this is happening. I baby my truck.
I have the 4R70E in the truck now, will the 4R100 fit? It's suppose to be a heavier duty tranny correct? Where I can get one and if not where I could send mine to have it reinforced?
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I was plowing and when I put it in reverse it felt like it slipped, but then the dash message trans malfunction came up. I checked the codes and I got P0722 output shaft speed sensor.
Code P0720 (oss) sensor circuit fault
Then the truck went into safe mods. Is it just the sensor or is my reverse going out...
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Yesterday driving to work felt the engine missing, on the way home got a CEL pulled the code when I got home it was P0302, so I started with the easy and put a new coil pack, same issue, so I prayed and pulled the plug (it didn't break). Put a new plug and a second new coil pack (just to be sure, and yes I keep extras dang 5.4). cleared codes and started it this time got P0202 Ford - Injector Circuit Malfunction Cylinder 2, so I checked Ohms on #2 and it was 12.6, #1, 3, 5,6 all have 13 Ohms, didn't check #4, 7, or 8 because my big hands and the probes on my multi meter. Checked the wires on all of them and have 12 volts with key on, not running. I read another check to put blk in pin and red on pos batt terminal, and that it was supposed to go 12 to 0 off and on with engine running, All of mine went up to 14 volts and stayed no switching. Is there something I am missing to check before replacing the injector on #2?
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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.
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I just got an Egde Evo which I installed and everything looked great. After a few runs, I noticed the ABS light coming on an soon after that my transmission goes to limp mode (the wrench lights up).
I receive the DTC error: P2106 on the Edge Evo.
I have gone back to Factory default, but it keeps coming back, ie. the ABS light lights up and the Trans goes to Forced Limited Power (according to the Evo).
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I was pulling the I-40 ascent to Asheville today while empty, got to the top and started down the other side got to semi flat road and the tach suddenly went up about 600 rpm's. Transmission temp about 180*F. I let off, then resumed and everything was fine. About a mile later it happened again. This time the tranny lost 3rd and OD, still had 1st, 2nd, and Reverse. So, we limped into a service station. Temps hovered in the 170-180 range. At this point there are no codes, no lights, O/D is not flashing.
I shut the truck down to check fluid level and current condition. Everything was fine last night. Fluid level is still good and fluid is still red and clean. I changed fluid about 2k ago and the fluid coming out looked almost as good as the fluid going in.
Got back in the truck started it up, checked for codes and got a P0705, put the truck in gear to get to a diesel shop down the road and everything was fine, shifted completely normally through all the gears. This lasted until about 1 mile from home and then the same thing happened all over again. Fluid still looks clean, not burned, still no CEL, no flashing O/D, but only have 1st, 2nd, and Reverse.
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My old 97 f-150's 4R70W started slipping.....so I just installed a rebuilt 98 f-150 unit that had about 10,000 miles on it and also has a transgo shift kit. Got it finished today....and.....
I have an check engine light code p0750 "shift solenoid A malfunction"........when leaving from a stop in Drive, the truck starts going in 2nd gear and just skips 1st gear all together. If I manually shift it, then 1st works fine and shifts through all the gears fine.
But in Drive.. it skips 1st. What to do? or what could be the problem? Where is this solenoid? Can I swap the one out of my old tranny into this one without pulling the whole tranny apart? (I don't mind dropping the pan though...) Or could i have a bad connection somewhere maybe?
Also....When the tranny shifts from 2nd to 3rd the rpms jump about 500 rpm before they drop...kind of seems excessive. Could this be caused by the shift solenoid A malfunction?
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I bought it 4 years ago with 205K, swapped trans fluid.. 10k miles later (I don't drive it a lot ). I am throwing the code P0750 Shift A malfunction.. i figured id swap the solenoid pack since I am pretty handy and it was affordable.. but it didn't seem to do the trick.. it drove around the block good for 5 minutes before it started shifting weird and throwing a code again.. almost seems to be slipping... I still have to check fluid level again and scan the code again but any suggestions? I have an apt to go to the tranny shop this week and would like to avoid the big bucks if possible.
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This is what I get from the DTC .....
DTC P0705
Description : transmission range sensor circuit malfunction
State : History
I have done some google search on the above diagnostic trouble code P0705 and as i understood , it indicates that the Engine Control Module (ECM) has received an input error from the Transmission Range Sensor (TRS).
Since the check engine light illuminated two times (two separate occasion) then it turns off now; the ECM is actually receiving input signal from the TRS.
So that leads me to think that the TRS is actually working but the problem might be one of the following two:
1- Open or short in the TRS circuit?
2- Dirty transmission fluid.
What do you think the steps i should do first of all ? how would i check the transmission fluid since my vehicle has no transmission fluid dipstick. My driving condition would fall into "severe" category and it reached 60,000 miles now ...
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I have a 98 camry with code p0755 - shift solenoid valve#2 malfunction.-What are some of the most common causes. How to test it ,the issues that cause this and what to do also after replacing it if bad? Also are these to be replaced in pairs with both 1st -2nd shift and 2nd to 3rd shift .
If I have high miles on it will adding the 2 -3 quarts of new fluid give me issues as to mixing with the old and part breaking up in transmission(I've heard a lot happens when u replace very old fluid with new or flush it fully)..will be replacing filter also but not the rest of fluid still in transmission at this time. Looking for a link a pic. of the exact location on transmission inside pan .of it(looks similar to other shift solenoid near it )...
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I have an '08 Accord Cpe with a V6 and 5-speed auto. transmission. When driving on a level stretch of road trying to hold the speed at 40mph the engine speed will bounce up and down between 1400 and 1700 RPM. The engine is warm. The transmission feels like it is trying to up-shift and make the car go faster thus nearly impossible to hold the speed at 40mph. If I put the transmission in 3rd gear so it can't shift up there isn't this problem. I have also noticed a lugging or hesitating when trying to accelerate when the engine is cold. I wonder if these are related issues?
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I have an ABS light on. I have crawled under the truck I don't know how many times everything is connected just as it should be. The wires did have to taped up because they burnt into after getting against the exhaust at some point, but I had fixed that awhile ago, I've even tore back into the tape and re-did everything again, nothing gets rid of the ABS light. When this first happened it would go away after I turned the truck off, but would come back after using the brakes a few times, especially harder stops. Then it got to where it just came on and stayed on, and didn't go out no matter what. Thinking my ABS speed sensor went, I bought a brand new motorcraft one from rock auto it fits perfectly in the rear, plug looks good. I can't find NOTHING that would keep this light on. The code is always the same "Rear ABS Center Speed Sensor Input Malfunction", how to get rid of this?
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I do not know the 5.4l 3v as well as my last 360ci dodge. It's a 2005 F-150 SuperCrew 4x4, got it cheap, and it's got issues. Got codes for misfire on cylinders 4 and 5 and Coil 'D' circuit malfunction. Obviously it has codes for limited power as well. was wondering how cylinder numbering goes and what coil is 'D'.
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I have a 2004 Prius with 80k miles. Always has been a workhorse. Recently had a bad cell in the HV battery. Battery rebuilt with new cell and now works great.
Now it runs about 20 miles and then displays dash lights of red triangle and small exclamation (brake?) and VSC.
I took it to Advance Auto and their scanner reads C1310 'Malfunction in HV system'.
I actually replaced the entire HV battery again with the battery from my friend's car, and the 12V battery too, but no luck. Same error.
If i disconnect the 12v battery for a while, it will clear the code and the car runs fine for about 20 miles and then dash lights come on again.
Car runs perfectly, over 50mpg even with the dash lit up. What that code is?
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My check engine light has come on twice now and I'm getting a p0505 code, idle air control malfunction. It seems as though there could be a couple causes for this. All my hoses seem tight, so the cheap fix seems out of the question. What could the other causes be, and more importantly, about how much for a shop to fix it. I have a 2006 with 155,000 miles on it.
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I got a problem this morning my car was juddering when I tried to accelerate my Toyota Prius 2004. When it's over 40MPH the car runs smoothly. After few hours it increased and now its jerking and juddering big time. Also when my car is moving the "Traction Control light" flashed even on dry tar roads. When I try to run from the battery the car runs smoothly at any speed. Also on neutral, the car idles fine and no juddering. Since few months I felt like the clutch plates are slipping and engine revs high than normal only when it's running on gas. Seems to be okay on battery.
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My 2006 F150 was purchased by me in early 2009 with about 28,000 miles on it. It's an XLT crew cab 4X4 with the 5.4. Stock except for a leveling kit and an aftermarket head unit. It currently has about 59,000 miles and has been babied since I purchased it. About 3 years ago I started noting some issues:
A. Oil pressure dummy gauge is all over the place. Some times it will show no oil pressure. Other times it is all the way to the highest mark. Other times the needle has gone 180 degrees past where normal is and is actualy pointing straight down towards the floor.
B. Recently my alternator dummy gauge has started doing the same thing as my oil pressure gauge.
C. The backlight behind my odometer works intermittently, but mostly not at all.
D. My dome light will flicker when first turned on. It doesn't matter which door is opened or if the override switch it turned on. It takes several seconds to come on and will flicker like there is a poor connection somewhere, but stays on once its on.
E. Blower fan will occasionally stop blowing. Once the climate control switch is turned to off, then back to on it resumes working. This doesn't happen often, but does occasionally.
Fortunately, the truck has not left me stranded and I want to keep it that way. We are getting ready to sale my wife's Toyota and this will become her daily driver. I want to take care of any issues before she starts driving it. Are these all separate issues or is there one common issue which could be causing them all?
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I have a 2008 Prius. I drove it around in Florida for a few days and everything ran great, but about 4 hours into the trip back to Minnesota, the red ! triangle light came on with a message on the display screen. It said "There is a problem with the transmission "P" lock mechanism Park your your car on a flat surface and fully apply the parking brake." This happened as I was driving, so I pulled over and did what it told me. After shutting down the car, I tried starting it back up and none of the gears worked. P, R, D, or B.
The message still displayed and the red ! light was still on. After shutting it on off several times, it finally started. No warnings. I found the nearest Toyota dealer and had them check it out. They found nothing but one short circuit, around the same time the warning lights would have gone on. I googled the problem, and it seemed like everyone was saying the problem is caused by a bad 12V battery, so I told the dealer to put in a new one. I was on the road again. However, the first stop I made for gas and sure enough, the light came back and I couldn't get it into a gear without restarting the car several times. I just hope I won't need to spend any more money on this 2 year old car.
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My F150 4X4 would not start a few days ago, after only having turned it off a few minutes prior. The gauges would sweep wildly and get stuck at various positions. I checked the fuses and they were fine, then unplugged the battery for a bit and it started back up. Occasionally it won't start and i'll have to disconnect the battery again to get it to start.
I'm still having some strange electrical issues though. The radio no longer turns on unless the ignition is turned to AUX. My back up alarm for going in reverse doesn't come on anymore. The gauges take at least 10 seconds to wake up after starting the truck. The dashboard blinker indicators will randomly stop blinking or making any noise. I was thinking it could be the computer, but could it be something else?
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I have an 08 prius with about 36k miles on it. Never had a problem other then getting the water pump replaced under warranty during scheduled maintenance.
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Check engine light came on this week. Said B1484 code Brake pedal open circuit..
I tried disconnecting the battery for a few minutes to reset but light came right back.
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