P2104 on FORD F-150 — Throttle Actuator Control System - Forced Idle

Q: "What does P2104 mean on a FORD F-150?"

"P2104 indicates: Throttle Actuator Control System - Forced Idle. This is a powertrain code. 6 FORD F-150 owners have reported this to NHTSA."

Q: "What are the most common causes of P2104 on FORD F-150?"

"Based on 6 NHTSA reports, the most commonly cited components are: Vehicle Speed Control, Vehicle Speed Control,Engine, Engine And Engine Cooling. These percentages are based on the component field in owner complaints."

Q: "Is P2104 serious on my FORD F-150?"

"Of 6 NHTSA reports for this code on FORD F-150, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my FORD F-150 shows P2104?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P2104 Means on Your FORD F-150

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.

6 FORD F-150 owners have reported this issue to NHTSA across model years 2005-2008. Most reports come from the 2005, 2008 model years.

Real FORD F-150 Owner Reports

Source: NHTSA Complaints Database

"On three separate occasions, my ford 2005 f150 king ranch supercrew 4x4 engine suddenly died while driving at approximately 55-60mph. on all three occasions, i fortunately was able to pull over to the side of the road with the engine died and no power steering."

— 2005 FORD F-150 owner · VEHICLE SPEED CONTROL,ENGINE · Filed 04/07/2012

"I have a 2005 f-150 supercrew. over the last several months - approximately 70k miles on truck at the time - the vehicle goes into a "fail safe" mode with the codes p2111 and p2104. the accelerator stops working and you have to coast to the side of the road and turn the car off."

— 2005 FORD F-150 owner · VEHICLE SPEED CONTROL · Filed 12/01/2009

"2005 ford f150 vehicle loses power and all control while driving on the road. this happened at least six times. very lucky traffic was light most times but one almost a caused rear end collision."

— 2005 FORD F-150 owner · VEHICLE SPEED CONTROL · Filed 08/12/2009

"Engine shut down while driving 30 mph this happened twice dealer scanned for code and found code p2104 idle air control valve stuck closed replaced body and motor assembly 6036 wp94 no charge under warranty recall replace switch 6306 wp94 and vacuum tebe 6l3z*9w431*a."

— 2005 FORD F-150 owner · ENGINE AND ENGINE COOLING · Filed 01/21/2009

"While driving 35 mph my ford f150 truck engine shut down. the truck lost all power brakes and steering. seconds before it stalled a engine malfunction light came on. i was only able to re-start after coming to a complete stop, placing the truck in park and turning the key off then back on."

— 2005 FORD F-150 owner · ELECTRICAL SYSTEM · Filed 01/08/2009

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

5

'05

1

'08

Common Causes on FORD F-150

Based on NHTSA complaint component analysis for this vehicle.

VEHICLE SPEED CONTROL 33.3%

VEHICLE SPEED CONTROL,ENGINE 16.7%

ENGINE and ENGINE COOLING 16.7%

ELECTRICAL SYSTEM 16.7%

VEHICLE SPEED CONTROL,WHEELS,FUEL/PROPULSION SYSTEM 16.7%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P2104 mean on a FORD F-150? ▾

P2104 indicates: Throttle Actuator Control System - Forced Idle. This is a powertrain code. 6 FORD F-150 owners have reported this to NHTSA.

What are the most common causes of P2104 on FORD F-150? ▾

Based on 6 NHTSA reports, the most commonly cited components are: Vehicle Speed Control, Vehicle Speed Control,Engine, Engine And Engine Cooling. These percentages are based on the component field in owner complaints.

Is P2104 serious on my FORD F-150? ▾

Of 6 NHTSA reports for this code on FORD F-150, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my FORD F-150 shows P2104? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.

P2104 on Other Vehicles

→ All codes reported on FORD F-150