The Lemon IndexThe computer found a throttle problem and is holding the engine at idle for safety.
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
Failing throttle body. Then: pedal sensor fault; wiring fault.
Owners named P2104 in 30 complaints to the U.S. government, most often on the Ford F-Series.
Cars owners report it on
Complaints that name P2104, by model. Raw counts, not a failure rate: popular models get more complaints.
Years owners report it on most: 2005 Ford F-Series · 2005 Ford Expedition · 2009 Ford Fusion · 2005 Ford Freestyle
The details
What P2104 means
The computer found a throttle problem and is holding the engine at idle for safety. The car may barely move.
Can I drive with P2104?
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
40% of the owner complaints that name P2104 also say the car stalls or shuts off. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P2104
- Failing throttle body
- Pedal sensor fault
- Wiring fault
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Stalls or shuts off: 40% of complaints
- Loses power or goes into limp mode: 23% of complaints
- Rattles or knocks: 7% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P2104 most
2005 Ford F-Series (6), 2005 Ford Expedition (3), 2009 Ford Fusion (3), 2005 Ford Freestyle (2).
Related codes
P2106 P2101 P2107 P2110 P2111 P2112 P2118 P2119
Quick answers
What does P2104 mean?
Throttle Actuator Control System - Forced Idle. The computer found a throttle problem and is holding the engine at idle for safety. The car may barely move.
Can I drive with P2104?
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
What causes P2104?
Failing throttle body; Pedal sensor fault; Wiring fault.
Counts: NHTSA owner complaints whose text names P2104. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.