2010 Ford Fusion: misfire or rough idle

Filed Apr 11, 2016 · Engine · 130,000 miles · NJ

The vehicle starting having a rough idle and stalling out at a red lights. I immediately had it checked, and the technician cleaned the throttle body which seemed to help for a few days. Then, with no warning I saw smoke/steam pouring out from under the hood so I immediately called for help and asked what to do. I was advised by the technician to immediately pull over and shut the car. I had the car towed to lilliston ford in vineland, nj. I was told I needed a new motor. When asked why, I was consistently told that they were not sure without taking the motor apart but that they found all of the coolant in the engine pan, mixed with the motor oil. It seems to be that the most likely scenario is that the head gasket went bad and coolant leaked into the motor causing two things to happen - it mixed with the engine oil (which is obviously bad), and since now all of the coolant was out of the radiator the car overheated and warped the engine block. This vehicle is only 6 years old and was religiously maintained and should not be having major issues as such. Case number: cas-9188661.

Filed Oct 13, 2015 · Fuel system · 94,000 miles · IL

This has happened sporadically since july 2015. There's no warning, no check engine light. You're driving the car and all the sudden the power to the engine is cut. It maintains a very rough idle as you attempt to maneuver to a shoulder in traffic and once stopped the car shakes violently. When this issue occurs the "wrench" on the dash electronics illuminates. Once you shut the car off and restart the car, it sometimes runs fine for a while, other times this issue occurs again. We've had the car into the shop twice, but because there's no check engine light sourcing the problem is incredibly hard. This is extremely unsafe, especially if it occurs on the interstate or other congested areas. Ford needs to be held liable for such and should issue a mandatory recall. I attached a picture of numerous complaints about the same issue and some say it's the throttle bodies which had an extended warranty for a little bit, but one should not have to have this occur before getting it fixed.

Filed May 28, 2015 · Acceleration, Transmission · 43,500 miles · WI

I was driving for about an hour down the freeway in cruise control. The car jerked slightly and went limp, decelerating while maintaining a rough idle around 1000 RPM's. The gas pedal was non-responsive while idling and I was able to coast off to the side of the road where there was no throttle response. The wrench light was on the dash. I turned the car off and tried to start it again, it started fine and I was able to drive it the rest of the way home without further incident. I have been afraid to drive anymore on the freeway since or any serious length knowing there is a serious issue with the vehicle. This is a terrible feeling knowing I have a fairly new car that I cannot trust to drive safely in. I have read others stories about this problem and seriously hope the vehicle's issues do not cause me to be involved in any accident on the freeway at high speeds. There is obviously an issue with a serious flaw and needs to be addressed.

Filed Nov 30, 2014 · Engine, Transmission · 88,500 miles · SC

Traveling at 55mph I suddenly lost power in engine and was unable to shift into another gear. My engine slowed to a rough idle. I safely was able to pull to roadside and turned off the car. I restarted the vehicle noting a rough start but the car performed normally after I began driving it down the road. About a half hr later I was traveling at 35mph with the same thing occurring, I was able again to pull safely off the road and able to turn off and restart the car noting again a rough start but the car performed again normally and the wrench went away again. I went to a service center and hooked my car to a computer finding p code 2111 with actuator stuck open. Ford initially told me this was my issue to fix when I called. The second time I called I spoke to a different rep and informed them of the known the federal safety agency investigation and the customer service program already established. A case number was started with them. I am unable to get to a ford dealership until tues due to work.

Filed Oct 9, 2014 · Engine, Fuel system · 66,000 miles · MI

Twice the vehicle ran properly and was parked. Upon starting the vehicle, it ran fine for some seconds. As I pulled into traffic, the vehicle inexplicably lost nearly all power. The engine ran extremely rough and the car would barely move at all. I could barely get off the road because of the extreme loss of power and very rough idling. The wrench indicator light came on both times, but the service engine light did not come on either time. After shutting off the car and restarting it, the car operated normally.

Filed Apr 7, 2014 · Engine, Fuel system · 70,500 miles · MD

After driving for ~20 minutes and the engine warming up, the engine will surge when coming to a complete stop after braking. There is also a smell of gas. Immediately after refueling, the engine is difficult to start. Once started it runs rough for a few seconds and wants to lurch away.

Filed Jan 31, 2014 · Fuel system · 50,000 miles · MN

After gas fill up. Car difficult to start. Takes several tries to get it going and then stumbles and runs rough for a while. When car was new it did it a few times. Incident occurred more and more as miles increased. By 90,000 miles, it almost always happens.

Filed Dec 19, 2013 · Acceleration, Electrical · 18,176 miles · FL

Yesterday, 12-18-13 while driving at approx. 65 MPH on highway car throttle stopped responding and went into rough idle. Did same thing 4 times and I narrowly escaped being rear ended. Had to get to side of road and turn off engine. After letting car set for approximately 2 minutes car restarted and seemed to run fine until the next unpredictable incident. Today 12-19-13 on way to dealership pulled into traffic and was almost broadsided. Almost being killed 4 times in 24 hrs. Suggests a major safety issue. Dealership was aware of problem as soon as I mentioned it indicating this was not first time. Dealership fixed issue even before discussing price as they said I could not drive car if this part was not replaced (again indicating a major safety issue that they were already aware of). According to the federal safety agency action # pe13003 this complaint has been under investigation since feb. 21, 2013. I feel this issue needs to be addressed before it leads to fatalities. Called ford customer service on this date and was given very little assistance on the issue other than they would report it for internal investigation. Feel that an immediate recall should be issued.

Filed Dec 16, 2013 · Transmission · 61,800 miles · OH

Lost power in the center lane of I-75, almost caused a large accident. Car was rough idling in median. Took it to a ford dealership,replaced the throttle body. Fixed the problem. Now I see there are many others that have had the same problem. Needs to be a recall. This is very dangerous, I could have killed someone!

Filed Dec 11, 2013 · Acceleration, Fuel system · PA

This problem has happened twice within the past 3 days. At the first occurrence, we were driving rather slowly, appx. 35 MPH. The car lost power without warning, and started misfiring violently. Depressing the fuel pedal had no effect. The yellow wrench warning icon on the dash was lit. We were going down a slight hill on side street, so it was easy to drift to the side of the road. We put the car in park and allowed it to run for a few minutes, but it continued to misfire and seemed starved for fuel. It did keep running for about 5-10 minutes more before we shut it off. While waiting for the tow truck, my husband tried restarting the car. It started immediately and ran fine with no warning lights. The next day the mechanic checked it but could find no issue or record of an error code. He added "dry gas" in case the problem was due to water freezing in the fuel line. The weather is quite cold. The third day (today) I filled the fuel tank and added another bottle of "dry gas". I drove appx 35 miles (in several segments) then the problem happened again. This time I was in traffic, going appx 55 miles per hour. The behavior was identical: pronounced misfiring, no power, fuel pedal had no effect, wrench warning light on. I was fortunate to have barely enough momentum to get most of the way off the highway. This time I restarted the car after about 10 seconds. Again, it started right up and I was able to drive the final 6 miles of my commute. In researching the problem, it seems that the cause may be the throttle assembly. We will be taking the car back to the repair shop and I will be happy to report back on the resolution.

Filed Nov 27, 2013 · Electrical, Fuel system · 25,780 miles · SD

Driving on highway at approximately 60 MPH when all power to the engine was lost. The vehicle decelerated quickly as I pulled over to the side of the road. An orange "wrench" light was illuminated on the dash, but no check engine light. Engine was idling roughly and a loud misfiring sound was coming from the exhaust. No matter how hard I pushed the gas pedal, I could not get above 3 MPH. I re-started the car, and the engine ran normally. However, the messages "service advancetrac" and "check brake system" appeared on the screen while two yellow traction control lights and the red brake light were illuminated. Upon restarting the vehicle once more, both of these indicators were gone. I was able to drive safely to the dealer who didn't perform any diagnostics nor drive the vehicle, but was still "90% sure" that the problem is the throttle body. Ford does not cover the throttle body under the 5 yr/60,000 mi powertrain warranty, nor will my aftermarket "exclusionary coverage" warranty by portfolio. The estimated cost to install a new throttle body is $321 without diagnostics. No repair has been done yet at this time, as I am waiting to hear back from ford motor company as well as the dealer that sold me the vehicle used.

Filed Nov 17, 2013 · Acceleration, Engine · 25,000 miles · NY

The car started to run rough, the engine light went on, there was no response to the gas pedal. I had enough speed to move to the shoulder. I turned off the car and the issue seemed to resolve itself. I happened two more times in the last three miles to my house.