Hello everyone... here goes.. 2005 Expedition, 5.4./ 40K/mi.
Was almost out of gas driving home while very cold out (10 deg/F) truck sat outside around 12 hours before driving home.
Thetruck then "bogged out" , pushed more pedal but no power or pickup, but truck still wasidling, then "recovers" and can drive but does it again around a curve. (very low on gasoline but no low gas indicator on) The emission light & the "wrench" come on, the wrench goes off, butthe emission light remains constant. Did the OBD 2 test,( P2104 TAC system forced idle) (P2112, stuck closed)( P2104 forced idle)( P2111 stuck open)(P2112 stuck closed) What the hell is up with this? Is this due to little or no gasoline OR the throttle body mechanism is gummed up & needs to be cleaned? What kind of hassle is it to remove the plastic air cleaner plenum to get to the throttle body? Itdoes not look easy... Love this site & thanks for any opinions.....

 

ford doesn't recommend cleaning the throttle body , it would do more harm then good . looks like you lost you app signal for a minute , is it still happening ? look at the wires for your throttle motor are the torn up or pinched any where.it could also be the sensor on the pedal it self look at all the wires closely.
P2112 - Throttle Actuator Control (TAC) System - Stuck Closed.




Description: This powertrain control module (PCM) fault status indicates the throttle plate is at a lower angle than commanded. Possible Causes:[*]Binding throttle body, stuck closed[*]Damaged PCM[/ul]P2111 - Throttle Actuator Control (TAC) System - Stuck Open




Description: This powertrain control module (PCM) fault status indicates the throttle plate is at a greater angle than commanded. Possible Causes:[*]Binding throttle body, stuck open[*]TAC motor circuits are cross-wired[*]TAC motor harness circuits are shorted together[*]Damaged PCM[/ul]

 

Hey B Rabbit, thanks for the reply.... It only did this "one" time. I filledup the tank anddrove the truck "like I stole it"... doing full throttle accelerations and "knock knock" it's running fine. I sure hope it stays that way! lol.... thanks again....

 

i bet it was just the cold !