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Engine Fail Safe P2104 P2111

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Old Jul 14, 2019 | 10:26 AM
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Engine Fail Safe P2104 P2111

Okay so the common throttle body symptoms and yes I’ve read other forums, and I’m not finding an answer in there.

Backstory real quick:
first time taking the truck out on some trails here in SWFL(there was some water but not a lot some splashed up and got the TB/TPS I assume or it was just that time) I began having issues with the engine failsafe mode and every possible throttle body related code in the world being thrown and the truck would shut down while driving and then not restart. Did my research replaced the throttle body assembly(high miles, wasn’t gonna do just the TPS figured a whole new TB would be better long term)
truck seemed good first few days(oof then it happened) okay some more research and realized I might not have done the relearn procedure properly, so repeated my steps, pulled the TB and put another new gasket in to be certain and cleaned all around it and then did the relearn procedure for the TB and all seemed good for the past week or two.

Upon coming back into the Everglades and got on the back roads(no trails just gravel roads and poorly maintained blacktop) had engine fail safe pop up again but no shut down, just a raise in idle(from 650ish to 1100rpms) and the check engine light(P2104 and P2111) the high idle would remain until shutting the truck off or clearing the codes(thank god it was in the truck this time &#128517 I also noticed cause it would do it while parked or while driving low speeds maybe 20 or below, but I noticed the gas pedal was slightly more depressed than normal a when I’m not on the gas.

Im at a bit of a loss here, I’m curious about the MAF if water possibly harmed it, or something else? Oil pressure is good, and engine temp is good too. However I live about an hour away from where I’ve been going to and then it’s another hour into the glades before the problem pops up, so approximately 2-3 hours of truck running perfectly and then bam it starts literally as soon as I get out of cell service and on a back road.

Now all you funny guys, don’t tell me to stop going off road or into the glades. Just ain’t gonna happen 😂 I wanna find the culprit of these two remaining codes, I should also point out the truck is still drivable while in the failsafe mode now, but at a high idle obviously and sketchy *** breaking capabilities.

Please any advice and instruction appreciated.
 
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Old Jul 14, 2019 | 10:55 AM
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Two updates to this

I should have noted this is the 04 F-150 5.4L 3V 4x4

also I was in the Everglades today made it about an hour and a half in and that’s when the code popped again cleared The code and proceeded to make my way out of the Everglades the symptoms popped up three more times on my way out of the Everglades I continue to turn the truck off restart after clearing the codes and I’m able to proceed down the roadAs soon as I got Out of the Everglades and onto clear pavement I’ve been able to drive all the way home without another single issue that is why I am kind of curious about the MAF
 
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Old Jul 16, 2019 | 08:05 AM
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redfishtd
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Was that a new tb oem . The tb on my 05 failed years ago due to a defective series around that time I got the improved design and all is good .I would clean all connectors real good but it seems like your pedal sender maybe bad since you noted it was in a funny orientation . Maybe a junk yard one would do .
It never hurts to clean maf but that doesn't seem like your problem . Sounds like you submerged your gas pedal . You want to inspect replace your FPDM on rear axle as it is a big problem in fuel delivery .It is a water /corrosion problem ,there is a sticky on it . Go to ford tech malukoco you tube for lots of info .
 
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Old Jul 16, 2019 | 08:44 AM
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Originally Posted by redfishtd
Was that a new tb oem . The tb on my 05 failed years ago due to a defective series around that time I got the improved design and all is good .I would clean all connectors real good but it seems like your pedal sender maybe bad since you noted it was in a funny orientation . Maybe a junk yard one would do .
It never hurts to clean maf but that doesn't seem like your problem . Sounds like you submerged your gas pedal . You want to inspect replace your FPDM on rear axle as it is a big problem in fuel delivery .It is a water /corrosion problem ,there is a sticky on it . Go to ford tech malukoco you tube for lots of info .
Yes it was a new OEM throttle body, which is why I’m not considering the throttle body as the problem at this time. The throttle body I pulled out was the part number that started with 3 which from what I found is the series of throttle bodies that were junk.

I will check the pedal and sensor as well but if it got submerged I would of had water in the cab right? Which I didn’t . And I’ll also reclean the wires and connectors going into the throttle body maf and so on tonight.
 
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Old Jul 16, 2019 | 09:18 PM
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When is the code detected?

The P2104 code is an informational code only and may set in combination with a number of other codes which are causing the Failure Mode Effects Management (FMEM).\\


P2111 Ford Possible Causes

  • Throttle Body Plate Binding
  • Faulty Throttle Actuator Control (TAC) Motor
  • Throttle Actuator Control (TAC) Motor harness is open or shorted
  • Throttle Actuator Control (TAC) Motor circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)
 
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Old Jul 16, 2019 | 09:21 PM
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since it does not happen on the ROAD, only in the GLADS, I would lean toward a connecter getting wet, or not making contact good during vibration / bounce.
 
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Old Jul 17, 2019 | 05:15 PM
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redfishtd
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That gas pedal sender and wiring is suspect . Me I would try to see what a junk yard one would do for me .I do not know the routing of the gas pedal wires ..I do know that the pedal is subject to a lot of dirt and moisture from shoes .Not to mention being jammed by floor mats and carpet .Forcing water up while playing in the glades may require some sealing with good silicone caulk ..
 
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