2018 Ford Focus: shudder or vibration when accelerating

Filed Jun 30, 2026 · Transmission · 86,000 miles · MD

The contact owns a 2018 Ford Focus. The contact stated that while driving at an undisclosed speed, the vehicle shuddered, and the transmission was not shifting properly while accelerating. There was no warning light illuminated. The vehicle was taken to a local dealer, where it was diagnosed with a clutch failure, and a clutch replacement was suggested at 27,000 miles. The vehicle was repaired under warranty. The contact stated that the shuddering persisted, and the purge valves were replaced after the clutch repair at 69,000 miles. The contact stated that on another occasion, while driving at an undisclosed speed, the vehicle shuddered and almost stalled. The vehicle was pulled over into a parking lot. The vehicle was driven back to the residence. The vehicle was taken back to the dealer, where it was diagnosed with a second clutch failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 86,000.

Filed Jun 17, 2026 · Transmission · OH

The ford focus I drive is constantly shuddering and having trouble selecting gears. The problem has been consistent since I bought the vehicle and I have read that this is a common issue with the ford focus transmission. I bought the vehicle for my sons first car and I can’t even let him drive it

Filed Apr 7, 2026 · Engine · 62,000 miles · MI

The contact owns a 2018 Ford Focus. The contact stated that while driving at an undisclosed speed, the vehicle was shuddering, jerking, and hesitating to accelerate as needed. The vehicle then stalled. No warning light was illuminated. The vehicle was towed to the dealer, who determined that there was coolant intrusion into the cylinders and that the engine needed to be replaced. The vehicle was not repaired. The contact related the failure to the federal safety agency Campaign Number: 26V011000 (Equipment); however, the VIN was not included in the recall. The manufacturer was made aware of the failure. The failure mileage was approximately 62,000.

Filed Jan 6, 2026 · NM

My 2018 Ford Focus with DPS6 PowerShift transmission exhibits documented defect symptoms: shuddering, delayed engagement, jerking, slipping, and unpredictable low-speed behavior. Ford corporate has refused to open a defect case or provide arbitration review. This transmission family has known litigation history and systemic defect documentation.

Filed Dec 16, 2025 · Engine · NY

I was driving on a 40mph road, went to pass someone and touched the gas to do so and the car shuddered, lost power, and made a whining noise anytime the turbo would engage. The turbocharger had to be replaced. Luckily this occurred on a road that wasn't busy and was close to home. The car has 55,000mi on it and it meticulously maintained.

Filed Oct 5, 2025 · Engine · VA

My wife was driving her car home from work when her car suddenly overheated in light traffic. She pulled over and called me. I came by and we saw that the coolant level was low, so we filled it up to the normal level and she drove it another 20 minutes back to our home. She said it was shuddering the whole way back. I started it in the driveway later that evening and a large amount of white smoke came out of the exhaust pipe and the engine still seemed to be misfiring. I tried starting it again the next day and it would crank but not start. It seems to be an issue with the engine, my guess is a ruptured head gasket. The shuddering caused by the misfires made the car unstable to drive especially if it died while she was at speed with other cars around. The car was towed to a dealer over 30 days ago and they said that it may be related to the open recall, but they won't know until they tear it down. Which they still haven't done. There were no engine codes or prior lamp indications until the overheating event.

Filed May 30, 2025 · Transmission · 130,000 miles · IL

The contact owns a 2018 Ford Focus. The contact stated while driving at an undisclosed speed, the vehicle shuddered abnormally while attempting to shift gear. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed and determined that the clutch assembly had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was approximately 130,000.

Filed May 2, 2025 · Acceleration, Engine · WA

My 2018 Ford Focus (DPS6 dual-clutch automatic transmission) suffers from severe hesitation and shuddering when accelerating from a stop, especially under 10 mph. More concerning, the car has stalled multiple times while merging into traffic and during right turns at intersections. We can no longer safely take free right turns due to the risk of the car dying mid-merge. This poses an immediate safety hazard and mirrors known failure patterns in earlier Focus and Fiesta models. Ford previously extended warranty coverage for the same TCM defect in 2011–2016 models, but my 2018 — which uses the same DPS6 system — has been excluded without explanation. The dealership acknowledged the TCM failure but refused to cover the repair. Instead, they charged me $300 to tell me they would not perform the service Ford originally recommended (a fuel injector purge) and that I now need to replace the TCM entirely. This is a known, documented issue that Ford has admitted to in other years. My car has lost power four times in the last three months, and all signs point to this being the early stages of the same defect. Allowing this failure to persist without coverage or recall is negligent and dangerous. Ford is knowingly placing families like mine at risk by refusing to act. I request an the federal safety agency investigation into the 2018 Ford Focus DPS6 models, which are experiencing the same failures that have already led to recalls, lawsuits, and warranty extensions in earlier years.

Filed Jan 16, 2025 · Transmission · OH

Slowed down to enter roundabout, when acceleration out of roundabout transmission shuddered, check engine light illuminated and failed to accelerate greater then 35 mph. When stopped transmission continued to shudder, and shifted awkwardly.

Filed Dec 9, 2024 · Transmission · 20,000 miles · IL

The contact owns a 2018 Ford Focus. The contact stated while driving at an undisclosed speed, the vehicle shuddered abnormally. There was no warning light illuminated. The vehicle was taken to a dealer where it was diagnosed and determined that the clutch assembly needed to be replaced. The contact researched and was made aware of the federal safety agency Campaign Number: 18V169000 (Power Train); however, the VIN was not included. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline to report the failure. The failure mileage was approximately 20,000.

Filed Aug 26, 2024 · Engine, Fuel system · 125,000 miles · CA

The contact owns a 2018 Ford Focus. The contact stated while driving and exceeding 45 MPH, the vehicle shuddered and hesitated to respond. The check engine warning light was illuminated. Additionally, the contact stated while driving 60-65 MPH, the vehicle stalled. The contact pulled over to the side of the road. The vehicle failed to restart and made a whining sound. The vehicle was towed to an Auto Parts store, where it was diagnosed with high-pressure fuel pump failure. The contact stated that the failure had occurred while driving at highway speeds, causing the vehicle to be towed several times. The dealer was not notified of the failure. The contact related the failure to the federal safety agency Campaign Numbers: 18V735000 (Fuel System, Gasoline), 18V845000 (Power Train), and 23V905000 (Engine and Engine Cooling). The manufacturer was notified of the failure and informed the contact that the VIN was not included in the recalls. The manufacturer referred the contact to the dealer for diagnostic testing. The failure mileage was approximately 125,000.

Filed Aug 23, 2024 · Acceleration, Steering · VA

Car shuddered horribly on interstate. RPMs revving up like crazy. Transmission struggling. This caused the car to slow down drastically in the middle of traffic, nearly causing myself a fatal accident amongst others around me. No warning indications, just Transmission Fault Service Now as soon as it happened. In the past this vehicle has had transmission issues fixed and replaced by Ford themselves, due to the same shuddering and stalling as listed above. All those times, no check engine light or warning lights. Care would accelerate/jerk/shudder badly. Making it unpredictable to drive.