Three problems related to wiring have been reported for the 2013 Ford Fiesta. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Ford Fiesta based on all problems reported for the 2013 Fiesta.
While driving the vehicle all power was lost and the car was not controlable. The engine malfunction lilght did come on. I did have the car towed and is apparently a know wiring issue related to service bulletin TSB-131115.
Engine malfunction error and loss of performance due to manufactor defect in wire harness. Ford claims this is a issue done during manufacturing and the fix is to re wire the harness under dash but is not covered due to it being a wiring issue. Loss of performance in vehicle is a safety issue if driving on a free way or other roads and you car loses most power. Ford has said that this issue is not the worry but it is a very known issue and consumers just have to pay and have it fixed which is costs in the thousands for there manufacturing defect. This issue happens when accelerating or just driving on highway or city streets. It happens non stop randomly and has been happeniing for about 6 months with no help from Ford to fix the issues. This is a safety issue because when it happens your car does not want to accelerate it jolts and starts not buring gasoline all the way it also will cause smog issues due to check engine light and you also need to pull vehicle over where ever you are at to turn it off wait a few mins and then it back on so you can keep driving.
First time it almost completely died on me getting on the highway, then all of the sudden it gunned it and took off. About 3 miles down the high way engine lights and service lights came on. I got to work and they towed it. They said they changed some kind of wiring under the front window and dash. That didn't fix it. The next day I was pulling out of wendy's and give it some gas and nothing happened. I rolled then all of the sudden it gunned it again. I almost got hit. Got it home and parted it. Took it in the next day and they changed the throttle body on it. It still hesitates as you go down the highway. Has very little take off and merging power. The only thing I am glad I did when I bought this car was I got a straight drive. It would have no power if it was an automatic.