Ford F-150 (2004-2008) :: P2106 Code - Truck Goes Into Failsafe Mode
Oct 9, 2011
Well my p2106 code seems to be different from all the other ones Ive read. I get the p2106 code after the truck goes into "FAILSAFE MODE" and it only goes into failsafe mode the moment the truck reaches 40mph and then loses all its power. I turn the truck off and back on and its back to normal until I go 40mph again. I scan it and only get one code p2106. The truck idles and runs perfectly until it reaches 40mph! I've replaced the entire throttle body with a new one from ford and it keeps doing the same thing. I don't want to keep buying electronic parts as they are not returnable. My truck is a 2005 Expedition with 72k miles on it
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So my Explorer is a 2004 Eddie Bauer v-6 with about 93K miles, great condition, very clean and never had any issues. I've had it about 6yrs.
For maybe 3-4 years now the truck has seemingly randomly gone into Engine Failsafe Mode in the message center. I haven't noticed any pattern here as to when/why this occurs. The wrench icon lights up as well as the Service Engine Soon light. Sometimes I seem to notice a change in power/performance but often I don't. There are times when this happens every few days, and sometimes it goes weeks without occurring. Often it just goes out of Failsafe Mode after I've turned the truck off and restarted and seems fine again. For all of these years this has been a nuisance more than anything and so I assumed(hoped) it was just a sensor issue and nothing to be worried with.
A few days ago the truck actually shut off while driving...losing power, immediately after it kicked into Failsafe Mode while driving slowly down a straight road (no inclines or anything). Today it went into Failsafe mode, and it kept running, however the gas pedal did nothing...I couldn't accelerate at all though I still had power. Coasted to a stop. Turned truck off, started right up and the gas pedal worked fine. 15 minutes later same thing...this time when I coasted to a stop...I noticed that when I put truck in reverse I WAS able to back up using the gas pedal but couldn't go forward. Turned truck off, ran fine though still in Failsafe Mode...drove home where it sits now.
Don't really wanna drive it now though I need it as my only source of transportation. I did have the scan done on it at Autozone a month or so ago and got the P2106 "Throttle Actuator Control System--Forced Limited Power" reading...which of course means nothing to me...and the guys who worked there had no idea either. I had the oil changed at Midas yesterday where they checked fluids and all that good stuff...I mentioned it before hand and they said they looked at anything they could and couldn't find anything without running diagnostics on it...I didn't have them do this as it is quite costly and at that point I hadn't experienced the issue with losing acceleration/gas pedal functioning while driving down the road.
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2005 ford f-150 Lariet goes into failsafe mode while driving on freeway. This is a dangerous situation happened ever.
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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 have a 2004 F-150 Lariat with a 5.4. (FYI-Have not had clockspring recall fixed yet)
124K miles. Vehicle has been operated in AZ and TX only until coming to Minot, ND 6 weeks ago.
3 days ago I got an "Engine Failsafe Mode" on startup. I shut the vehicle off immediately. Started it up again and the "Engine Failsafe Mode" message disappeared, but the engine light came on and has stayed on for the last 3 days. It seems to be running ok, maybe a little rough.
I ran the reset info on the dash screen and all systems read out OK. I have not run the truck over 40 mph since, and not on the highway, but it seems to accelerate without a lot of hesitation.
I've seen in other forums that this might be a dirty or faulty throttle body and/or the dealer may be able to re-flash with updates but this is old 2004 info from newer owners back then.
What am I looking at from a time/price angle when going to the Dealer for service? I don't want to replace a throttle body if it just needs to be cleaned and re-flashed because I'm ignorant.
Anything I should watch out for? I'm not a competent mechanic!
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so i had a litle fun in the clay today ..and now my trucks check engine lights on ..i have a code reader im running a P0172 P01275 P2106 Ive cleaned the MAF and changed my air filter...still running the three codes afterwords no trouble with turning over starts right up and drives with a normal amount of power....its a 2004 5.4L V8 ...
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I was driving down a road tonight and my entire truck shut down, and it said engine safe mode. I lost all power steering and gas, all I had were breaks and electronics. What does that mean?
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Just fully rebuilt transmissin 4r75 replaced all planet gears clutches etc. Now with it all back together the speedo does not work on truck goes into limp mode. I replaced the vss sensor an no luck
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Problem started after an ignition coil went bad where '06 Accent w/ 45000 miles locks into 3rd gear failsafe mode. Changed coil and plugs, flushed transmission fluid and refilled with SPIII. Old fluid was very dirty but not full of metal bits. Car still goes into failsafe first time it reaches 3rd gear after initial startup. If you disconnect and reconnect battery after driving for 1-2 miles in 3rd gear the car works fine. Even after sitting for an hour and still slightly warm car works fine. If car gets cold again 2-3 hours later in winter you go into failsafe in first mile. Once again battery disconnect/reconnect puts it back to normal. I assume it is some type of sensor going bad and don't want to have a repair shop replacing good parts.
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At a loss right now. My 2004 F150 4X4 and just recently started sounding like the truck is trying to shift into 4X4 mode while driving it. It stops if it's switched into 4X4. I have taken it to a local mechanic shop I use and they said it was the Actuators and they replaced those. I got it back and the same day the noise came back. Took it back and they have had it for another week and still unable to figure it out. I even took it to another shop that was highly recommended and they say to take it to a Ford dealership. I have read that some say it could be the vacuum operated hubs? Need to figure out what it was and had it fixed?
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The other day my truck stalled out and wouldn't start so I had it towed to the shop, the shop tested the fuel pump but couldn't find anything and it fired up and ran fine for them. It ran fine for a day and now is running extremely rich. The only code it's throwing is P0452 which is for the evap system. I spent awhile searching but couldn't find any answer on it.
I couldn't find any loose connections in the harness or on top of the fuel tank, I had the classic FDPM issues before so I replaced that. I'm beyond frustrated with this hulk seems like once a month it wants to quit working.
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So I bought a 2006 F150 stx reg cab with the 4.6l motor with 90k miles on it a few weeks ago. It was in really good condition and I couldn't pass the deal up. All in all, I love this truck. However at idle the truck is a bit rough. No check engine light, but a bit rough non the less. So I hooked up my obd2 torque app and I see I have anywhere between 6 and 60 total counted misfires, but none detected by individual cylinder. So I ran a scan and have a B1360 code without the CEL on. So I changed the plugs and coil packs and cleaned the k&n filer (non cold air filter, just a replacement k&n) and I still have all the symptoms and the b136p code. So I Google the b1360 code and there's very little on it. Basically says open circuit ignition.
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2008 F150 5.4L .. The truck lost all power the other day driving and barely made it to work. On the ride home it was still running horribly, like it just fell on its face. the check engine light came on. Went to autozone and put HEAT in the gas tank cuz the night before it was at quarter tank and temp went from warm to freezing(thought maybe condensation in tank).. Truck ran a lot better( not perfect). Drove around that day and it was fine. Pulled down the driveway and CE light shut off. Ran the code anyways and it was P0012..
Talked to a few mechanics and they said try replacing the Camshaft position sensors..did so and it ran worse. the truck hardly would idle or rev and shook violently..i shut it down right away. Then it threw 9 codes..Cam shaft position- over retarded timing bank 1(P0012), misfire cyl2, misfire cyl3, misfire cyl 4, random misfire, cam sensor bank 1, three of them were repeated codes..
I replaced the sensors back to stock and cleared the codes. the truck is running like it was in the beginning of the problem..No vilant shaking but falling right on its face at idle and any rpm..not drivable. Would rather do the work myself. very capable except for replacing camshaft phasers which i have heard could be the issue..Could it by the VCT seliniod, EGR valve, plugs, wires...Did just change the oil a week ago and cleaned and reoiled air filter.
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I recently bought a h&s tuner and installed a dpf delete kit. Everything works great when the truck is not plugged in to the tuner although when I do plug it in, the truck keeps throwing a communications code and goes into a limp mode until I delete the code. I believe it was p0073 but i maye be mistaken. Regardless it has to do with communicating through the obd2 port. I sent the tuner in to get checked out and it turns out its something to do with the truck. I've checked all the fuses and tried to check for broken wires. Where to look next?
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Replaced HPFP 38,000 miles ago. Truck began going in limp mode without engine light, wrench came on in dash, gave codes for brake switch, anti-theft, some other weird codes. Had those codes cleared, ran for while then water separator came on, drained the water out, came back on. Read some forums, so I removed and cleaned the housing, cleaned off the sensor. Had code cleared and ran good for about a week. Then guess what engine light comes on, limp mode.
Went to Auto Zone, pulled code P0088. This truck runs awesome until limp mode. No other problems. I take it to the ford dealer, scanner pulled P0088 and the water separator code again. I have read alot of remarks about this P0088 code. Can there be another cause for pulling this code, only 38,000 miles later. I had them do the TSB 12-07-07 but I have also read it can only be done if the P0088 is the only code. I just really feel there is an underlying issue with these 6.4's.
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I just had my thermostats replaced in my 6.4, and I'm concerned about the regent process. I read that when the P0128 code is thrown, truck will not go into regen. Is this true? How can I manually start the regen process?
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2008 sonata 3.3, no reverse however the dash indicates it's in reverse. Code P0733. I understand how an unrelated problem can cause another and wonder if I can eliminated possible problems. Car is in limp mode and stays in second or third gear.
I am about to disconnect, clean and wiggle the connectors for the transmission inner and outer sensors and then find out if I can test the sensors. That is, after I find them.
I'm also on the hunt for anything the TPS sensor might have to do with it. Battery disconnect does not work, even after hours. Is there any way something unrelated like the brake light switch or the inhibitor switch (whatever that is), might be the cause? Valve body?
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There had been a lot of discussion about the engine light coming on and the Engine fail safe mode. A lot of folks said the dealer could not fix it. It happened to me and my dealer fixed it. This is what the dealer did to correct the problem
EEC Tested
Code P2106
Disconnected all wheel speed sensors and reprogramed PCM per SSM 17272 and Ford Hotline
No more problems.....
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I was driving home. Problems started after pulling away from a 4-way stop. Truck started lunging almost like I was running out of fuel. Then I got a "Transmission Malfunction" in the in dash display. Followed by limp mode. I checked the Faults when I got home. I have the following:
P0720 - Powertrain - Output speed sensor Circuit
P2106 - Powertrain - Throttle Actuator Control System - Forced Limited Power (From what I understand this is associated with limp mode. Not a root of the problem)
P0713 - Powertrain - Transmission Fluid Temp Sensor Circuit High Input
P0722 - Powertrain - Output Speed Sensor Circuit No Signal
The vehicle has around 192,000 mi. Replaced cam phasers in upper engine roughly 1000 miles ago and replaced all the bearings in the rear differential roughly 100 mi ago. I haven't messed with anything on the transmission. Checked fluid level and color of transmission fluid.
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Got a 2006 GX throwing a P2445 code and car goes into limp mode. Is this the Air Injection Pump? Where it's located?
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My truck will not go above 30 mph - rpm's will rev high but, speed will not climb. I was able to put the truck in 2nd gear and drive home at @ 40 mph. Truck has 135K miles on it, I'm the original owner. What this might be?
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