2010 Ford Focus: misfire or rough idle

6 of the 287 complaints about the 2010 Ford Focus describe misfire or rough idle.

owner complaints: 6
of this car's complaints: 2%
typical mileage: 28,000
recalls: 0

Is there a fix? 2 service bulletins cover this area of the car. See below

Misfire or rough idle by model year

2018
14
2017
11
2016
16
2015
5
2014
13
2013
18
2012
15
2010
6
2009
1
2008
2
2005
3
2002
4
2001
7
2000
9

What owners say

Filed Jul 10, 2019 · Fuel system, Transmission · AL

Mil comes on intermittently with a p0451 (3-4 driving cycles after a cold start ) dtc, no obvious repair conditions present. Rough idle, power loss, hesitation, decrease in mileage. Issues go away on their own after PCM reset, come back shortly after mil sets again. Mil goes off randomly, and problems go away shortly after. Have run multiple diagnostics and no repair issues found. Was told the PCM itself might need to be replaced or reprogrammed.

Filed Nov 22, 2014 · Engine · 28,000 miles · WA

My 2010 ford focus will frequently experience a very rough idle, and will almost stall while stationary. This happens almost immediately after slowing down. My local ford dealer seems to be aware of the problem, they said they can replace my throttle body with an "updated version that doesn't stick". If this is a systematic safety problem, a recall should be issued.

Filed Jan 4, 2014 · Acceleration, Fuel system · 82,000 miles · NY

Experiencing rough idle and complete loss of power at normal speed, engine check and wrench light comes on at time of issue. Had a diagnostic check at advance auto and error code p2135 throttle position sensor/switch a/b voltage correlation and also error code p2111 throttle actuator control system stuck open. I believe this to be a safety issue due to complete lose of power at normal driving speed and just enough time to pull over or almost getting hit from behind.

Filed Oct 28, 2013 · Acceleration · 74,099 miles · NC

Error codes coming up p2135 and p2111 loses power and runs rough.

Filed Jul 26, 2011 · Engine · 25,000 miles · NY

Tl* the contact owns a 2010 ford focus. The contact stated that the ignition wiring was exposed and would cause the third cylinder to misfire. The vehicle would also stall while driving 10 MPH. The vehicle restarted immediately, but the contact had to continuously apply pressure to the accelerator pedal due to the loss of the third cylinder. The vehicle was taken to an authorized dealer, who stated that the wiring was chewed by a rodent, resulting in the stalling. The vehicle was repaired by replacing the exposed wiring. There was no recall for this failure. The manufacturer was notified, and stated that it was up to the dealer whether or not to repair the vehicle. The failure mileage was 25,000.

Filed May 11, 2011 · Transmission · 27,000 miles · CA

2010 ford focus was having rough idling while stopped and the car being on and on park. Took it to the ford dealership because it's still under warranty, the supposedly checked and fixed it. It stopped doing that for a few days then it started back again within a week I took it back to the dealership. They kept the car for a day and a half and when they returned it they didn't say what was wrong with it they just cleaned out the throttle as per the paperwork the gave me. Then about a week later I was driving on the freeway and the gas pedal (acceleration) stopped working and the wrench light came on! It's amazing how many people really don't pay attention on the freeway I almost got rearended. So I had to have it towed to the dealership at almost 10pm saturday night. Come monday afternoon they wanted to release the car because they could not find anything wrong with it. I told them there is no way I am taking the car back. A car doesn't stop working in the middle of the freeway for no reason now come wed. Still have not heard anything as of yet!!!!