2014 Ford Fiesta: jerking or lurching

Filed Mar 24, 2026 · Transmission · CT

Transmission was supposedly rebuilt back July 26, 3021. Now transmission has had a new dual clutch replaced but other concerns are still there jerkiness on accelerations. In 2021 the transmission was not fully rebuild as per recall. Only clutch assembly was done and not the back end. Which now could be the problem. Second, colonial Ford sated transmission rebuilt has lifetime warranty which a lie. Colonial Ford doesn’t offer lifetime. The service advisors lie about this all the time. Now the car jerks on acceleration after clutch replacement. Dealer and Ford still take no responsibility over the product! The car has 145,000 miles still under the 150,000 mile warranty isssue by you!

Filed Jul 24, 2025 · Engine, Transmission · 69,000 miles · MD

The contact owns a 2014 Ford Fiesta. The contact stated that while his wife was driving at an undisclosed speed, the vehicle jerked, and an abnormal sound was coming from the engine. Several unknown warning lights were illuminated, and unknown messages were displayed. The contact's wife continued driving at slower speeds. The vehicle was towed to an independent mechanic who diagnosed that the transmission control module (TCM) and engine control module (ECM) had failed and needed to be replaced. The vehicle was not repaired. The vehicle was towed to the dealer; however, the vehicle was not diagnosed or repaired due to the cost. The manufacturer was not notified of the failure. The failure mileage was approximately 69,000.

Filed May 8, 2025 · Acceleration, Electrical · VA

The vehicle has experienced ongoing failures with the DPS6 PowerShift transmission system. Symptoms included slipping between gears, failure to engage 6th gear, jerky shifting, and bucking during acceleration. A transmission warning light appeared multiple times. These issues occurred daily and worsened over time. Eventually, the vehicle became unsafe to drive—it would over-rev, buck violently, and lose power during traffic conditions. A retired Ford Senior Master Technician confirmed the issue is consistent with a faulty Transmission Control Module (TCM), which is covered under Ford’s Customer Satisfaction Program (CSP) 14M02. Despite this, the dealership refused to replace the TCM. Instead, they replaced a speed sensor and returned it to me. The vehicle broke down again within minutes and had to be returned. The dealership has now suggested dropping the transmission for further inspection at a cost of $2,500, rather than honoring CSP 14M02. They also encouraged me to trade in the vehicle instead of repairing it. The TCM failure has not been resolved, and the vehicle remains unsafe to drive.

Filed Aug 31, 2024 · Brakes · CA

I started to notice a bit of resistance when pressing on the brakes. Minor initially, but then if you had to apply slightly more pressure the car would jerk/pull hard to the right. The harder and faster you had to press, the more intense the jerk. I took her in to the dealership and they noticed something with the reservoir into the hydraulics unit that feeds fluid into the brakes. The fluids are not circulating back into it and the caliper is not building enough pressure to close. They said it's the ABS Hydraulic Control Unit: D2BZ-2C405-E and the part is on national backorder with no ETA. The car is unsafe to drive without the part. She's a 2014 with only 28k miles and it seems strange to have this failure with such low mileage. I just have texts with the dealership right now. I spoke with Ford directly today and they guesstimated 5-6 months for the part. I ordered a used part and will take her to another mechanic to get it replaced in the interim since the dealership won't work with a used part. At that point I will have invoices. Thanks.

Filed Aug 23, 2024 · Transmission · MD

Car jerking and sometimes will not move

Filed Mar 27, 2024 · Transmission · 109,000 miles · MO

The contact owns 2014 Ford Fiesta. The contact stated while driving at an undisclosed speed, the vehicle experienced jerking, lunging, and a hard deceleration without depressing the brake pedal. The contact stated that the failure occurred without warning. The wrench and check engine warning lights were illuminated. The Service Engine Soon and Hill Start Assist not available messages were displayed. The vehicle was taken to the dealer where the vehicle was diagnosed with a failed clutch. The vehicle was not repaired due to the cost. The manufacturer was notified of the failure. The failure mileage was approximately 109,000.

Filed Nov 2, 2023 · Transmission · 38,000 miles · TX

The contact owns a 2014 Ford Fiesta. The contact stated while driving 30 MPH, the vehicle started to jerk and made an abnormally loud sound while shifting gear. Upon arriving to her destination and attempting to reverse into a parking space, the vehicle failed to shift into reverse. The vehicle was taken to the dealer, who diagnosed a failure with the clutch and transmission. The vehicle was not repaired. The manufacturer was notified of the failure but referred the contact to the federal safety agency Hotline for assistance. The failure mileage was 38,000.

Filed May 10, 2023 · Transmission · 55,000 miles · NV

The contact owns a 2014 Ford Fiesta. The contact stated while driving 30-35 MPH, the vehicle decelerated, then accelerated unintendedly. The contact released the accelerator pedal and continued driving. The contact also stated that the vehicle jerked and was not operating as needed. The vehicle was taken to an independent mechanic, where it was diagnosed that the transmission element A was stuck. The vehicle was repaired; however, the failure reoccurred while driving. The vehicle was taken to the dealer, where it was diagnosed that the TCM had failed and needed to be replaced. The dealer then diagnosed that the transmission clutch assembly, the transmission lever, and bearings needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The contact stated that she had previously filed a complaint regarding a similar failure. The failure mileage was approximately 55,000.

Filed Aug 23, 2021 · Transmission · VA

The DSP6 transmission is slipping out of gear and into neutral. This causes the car's momentum to fall below safe advised speeds on highways, and also can cause the car to jerk suddenly at intersections. Ford knows about this issue but is refusing to repair it.

Filed Apr 13, 2021 · Transmission · 61,750 miles · WI

From a dead stop at 2045 hrs central time as. I was coming home from work I was stopped at a stop sign on northland avenue on the way to florida avenue to my sons house. When I went to take a left hand turn onto meade street (located in appleton wis) I pressed the accelerator my engine reved but my car would not move. It lurched suddenly grabbing power then stopped in the middle of the intersection. I checked to see that it was in drive and not in any other gear. As I pressed the gas again the transmission and car struggled to engage what I could only imagine was the clutch. Finally I the car engaged and jerked me forward. I was very worried I was going to get hit stranded in the middle of an intersection ! This car was bought new off the lot!! It has 61,750 miles on it! I'm a 64 year old little old lady who takes care of her car! This is absolutely outrageous and uncalled for! Please conduct an investigation into fords 'non-serviceable' transmission! You can't even add fluid or check the level of the transmission fluid. I've told my son at times as well I've smelled what I thought was hot transmission fluid. The smell was distinct. This car has been maintained. I've never heard of a car you have to go to the dealer to get service for the transmission because it's sealed. Absolutely ridiculous and dangerous !!

Filed Jan 1, 2021 · Acceleration, Brakes · OK

Car jerks and when I unlock door only 1 door unlocks and that is driver's side transmission going out and every time I put gas act like does want to start up again and then its takes forever just to catch up speed

Filed Jan 3, 2020 · 62,000 miles · WI

My radio started acting strangely about 3 months ago. When the radio was on there was irregular squealing coming from it. When it first started, the squealing was only when the radio was on and I was driving the car. Later, the squealing also started to include loud popping noises, very much like an old stereo speaker losing its wire connection. The loud popping was very inconsistent . It then started happening every time I was in the car. It didn't matter if the radio was on or not. I even tried turning down the volume, while the radio was off. The popping noise was extremely loud and distracting while trying to drive the vehicle . Many time because the pop was so loud I would jerk the steering wheel in one direction or another. Passengers that rode in my car during some of the incidences had commented on it hurting their ears and making them jump or jerk in their seat. Then, one day the popping was happening almost continuously and then just stopped. Now leaving me without a radio and phone connection. I searched the internet to try to figure out the problem and have found that this is an extremely common defect in the ford fiesta. The erratic loud popping is a very dangerous distraction while you are driving and I feel it is very much a safety hazard.