2010 Ford Focus: sudden loss of power

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 Jun 5, 2018 · Acceleration · 530,000 miles · GA

While driving on city streets the engine (35 MPH) the engine lost power and dropped in speed yo a few mpr. Shut engine down and then restarted the engine I drove about a mile and the same thing happened again only this time the engine icon lite came on. I then called for a wrecker which towed the car to the dealer. There they said it was the e throttle body.

Filed Aug 30, 2016 · Transmission · 77,210 miles · FL

Sudden loss of power while in motion, wrench light coming on. My teenage daughter has almost been involved in a couple of serious accidents because of this. I understand it is a known issue with the throttle body, but while ford has extended the warranty on explorers and a few other models so owners can have new parts installed, it has not extended the warranty to the focus ' this despite thousands of online complaints from focus owners. This repair will cost me about $700, and I cannot afford it. I will never again purchase a ford.

Filed Jun 14, 2015 · Fuel system · 29,801 miles · CA

We own a 2010 ford focus. While my daughter was driving home from her college town at 75mph, the care suddenly lost power. Luckily they were able to coast to the side of the road. At that point multiple dashboard lights came on. They started the car again and it immediatly died. We had it towed to a repair shop. By the time the repair shop had a chance to look at the car, it started up without incident and they could not replicate the problem. After inconclusive diagnostics by the repair shop and my research on this website, we had to assume it was similar to too many other identical complaints. My daughter drives this car to and from college, each one way trip being about 180 miles. This is not something we could "hope" would not happen again. It sounded like there have been too many similar complaints to not have it repaired. We had no choice but to replace the entire throttle body at our own expense to the tune of about $800. We will never spend another dime on a ford product. We bought this car brand new so our daughter would have a safe car. I am extremely disappointed in the ford motor company. I fail to understand how a problem like this, which sounds much to common, can be ignored. Ford should be forced to issue a recall, as well as reimburse all the car owners that have paid out of their own pockets to have this fixed. We are grateful that our daughter was able to safely get to the side of the highway, but it is only a matter of time until this factory defect causes a one or more fatalities. We have lost all confidence in the ford moto company for not stepping up much, much earlier to correct this.

Filed Jun 4, 2015 · Transmission · 70,252 miles · KS

We own a 2010 ford focus and for the past 6 weeks we have started having problems with the car losing power while driving. The car does not shut off but all ability to accelerate is gone. Once we stop the car, turn it off and restart it, the ability to accelerate is restored. This has happened several times in the past six weeks. It is especially dangerous when it happens on a four lane road when there is no chance to coast over to the side and you have to stop in the middle of fast moving traffic, turn off the vehicle and restart it. It also happened when turning onto a busy four lane road from a shopping center. We were turning left across traffic with plenty of room and time to make the turn until we lost acceleration, putting us in harms way with oncoming traffic. Fortunately the oncoming drivers were paying attention and stopped while we were stopped, turning off the ignition and restarting to regain ability to accelerate. In researching online and talking to the local ford mechanic, it looks to be a very common problem with the ford focus. The problem centers around the throttle body and sensors, causing a disengagement with the ability to accelerate. So far we have been fortunate and have not been in an accident but I can no longer put my family in this vehicle until it is repaired. It is just too unsafe with this issue.

Filed Mar 20, 2015 · Acceleration · 140,000 miles · NH

Tl* the contact owns a 2010 ford focus. The contact stated that while driving at various speeds, the vehicle would suddenly lose power and failed to accelerate. During the failure, the check engine light illuminated. The vehicle was taken to the dealer, who diagnosed that the throttle body was faulty and needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The VIN was not available. The failure mileage was 140,000.

Filed Mar 4, 2015 · Engine · 59,000 miles · OH

The engine hesitates, at various speeds, it seems like it cuts out, but there is no loss of power, everything functions. It happens at irregular intervals.

Filed Sep 16, 2014 · Acceleration · 58,000 miles · VA

Tl* the contact owns a 2010 ford focus. The contact stated that while traveling at any speed, the vehicle was idling rough. In addition, there was a loss of power and the wrench warning light illuminated. The vehicle was taken to an independent mechanic, who diagnosed that the throttle body needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 58,000.

Filed Jun 3, 2014 · Engine, Fuel system · 68,000 miles · NH

I drive approximately 1 hour each way to work and back. During this trip I am spend a lot of time on two lane major access roadways with speeds of 55 MPH. Driving at a steady 60 MPH throughout most of my trip, I had a sudden loss of power in heavy traffic and the orange wrench that signifies "limp home mode" came on. Since half of my trip is on roads that are rural in amenities, I was unable to limp to the nearest ford dealership or auto parts place the offer testing services. I coasted to the side of the road and restarted the vehicle which could be done under a roll as it is a 5spd. The car restarted immediately and ran perfect the rest of the way home (about 25 miles). This vehicle ran fine for three more weeks and then began doing the same thing again. One of the things I noticed the most is that it does not seem to do this over 60 MPH as one day a week I am traveling at more highway speeds (70 ish) and it has never done this under that type of load. This had been an off and on occurrence since april, yet has become more common. I borrowed a scan tool from my neighbor, drove the car with it plugged in, and today came up with two codes in less than 11 miles of driving. P2135 and p2111 which when I contacted my ford service technician came out to be throttle body codes. To date it has happened 27 times while driving, has not left me stranded, yet, but has caused rapid deceleration in some heavy traffic. Car does reset itself and runs fine for a while right after, however I am concerned that this could become much more of a hazard as time goes on. Currently has 74,500 miles on car.

Filed May 8, 2014 · Acceleration, Fuel system · 38,000 miles · MI

I was driving on the freeway when my focus suddenly lost power and speed despite my foot remaining on the gas pedal. I had to get over to the shoulder suddenly and narrowly missed being hit by a semi. The car would not start back up immediately and a check engine / wrench light appeared. I lost power several more times on my drive to work. It was a nightmare. The car would not accelerate beyond 55 anymore until fixed. It turned out that the throttle body assembly went on the car. It cost $700 to fix the issue despite the car having only 38,000 miles. This problem should not occur on a car with such low mileage. This was a very dangerous problem!

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 Jul 13, 2012 · Driver assistance, Electrical · 58,000 miles · IL

When I was driving, the car would lose power. Sometimes, it would just slow randomly, and many times it would just lose all throttle and stop. It happened on the highway going over 65 MPH, on a busy street traveling 40 MPH, and in the middle of a turn at a busy intersection. Apparently, this is happening to many ford focuses (http://www.focusfanatics.com/forum/showthread.php?t=271461), and something must be done about this. It is dangerous. Not only is it not covered under the powertrain warranty, it is $600 to fix! This is awful, and it should be re-called. Someone will end up getting killed, and ford should be sued for their death. If this is happening to so many cars they should not pay to fix it, it should be recalled!