P2104 on Ford Expedition
Throttle Actuator Control System - Forced Idle
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Ford Expedition context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for P2104.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What P2104 Means on Your Ford Expedition
P2104 is a diagnostic trouble code indicating: Throttle Actuator Control System - Forced Idle. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real Ford Expedition Owner Reports
Source: NHTSA Complaints Database
"Since purchasing the expedition in december 2014, i've had several incidents of "check engine throttle" warnings and the engine shut down, suddenly. this seems to also have a secondary issue of the truck hesitating/sputtering around 40-50mph."
"2005 ford expedition. while driving on the hwy the "check electronic throttle control" light came on and put the vehicle in "limp mode" i had no accelerator pedal control. december 22, 2008. taken to dealer, no problem found. code was " p2104". same thing happened again december 20, 2009."
"While driving the vehicle will have not have any throttle response and "check electronic throttle component" shows on dash. after pulling to the side of the road, or coasting into someone's drive-way on a curvey road, turn the ignition off and sit for a few minutes and restart engine and is fine."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on Ford Expedition
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.