2019 Ford Fusion: shudder or vibration when accelerating

Filed Sep 21, 2026 · Electrical, Fuel system · LA

I am the original single owner of a 2019, paid-off, gas Fusion with less than 54,000 miles, a spotless maintenance record, and no accident history. The vehicle suffered a sudden, instantaneous total loss of motive power. The loss of electric power steering assist and loss of power brake assist while driving through a live intersection with no warning lights or prior engine shuddering nearly caused a severe, life-threatening, or even fatal collision. The vehicle was removed from the intersection by physically pushing it with the assistance of other passing motorists and local police. I immediately called and requested towing services through the manufacturer. Services arrived 2 hours later. They started the car with no issue and drove it onto the tow truck. No engine lights or warning lights were present; the vehicle did not stutter or shake, and the vehicle had a 1/4 tank of gasoline. The vehicle was delivered directly to the Dealership. After it stalled and once it was removed from the intersection, no attempt was made to restart the vehicle until the towing service arrived. The dealership has had the vehicle for 2 weeks and claims they cannot diagnose the cause; there are no active diagnostic codes, and they have not been able to replicate the failure regarding this potentially fatal electrical shutdown. It is completely unacceptable and dangerously irresponsible for a dealership to hold a vehicle for 2 weeks, then suggest "picking it up, add some gas" simply because they haven't found any issues and "it should be fine." I cannot, in good conscience and out of protection of myself, my family, and other motorists, continue operating a vehicle that exhibits life-threatening intermittent failures.

Filed Jul 1, 2026 · Engine · ID

My 2019 Ford Fusion 2.0L EcoBoost (89,000 miles) experienced a sudden, severe engine malfunction due to a known manufacturing defect. The vehicle exhibited severe engine shuddering and a harsh cold-start misfire upon ignition. A diagnostic scan revealed trouble codes P0316 (Misfire on Startup), P0302 (Cylinder 2 Misfire), and P0304 (Cylinder 4 Misfire). A mechanic verified that these codes are the result of internal coolant intrusion into the engine cylinders, exactly as documented in Ford Technical Service Bulletin TSB 19-2346. The structural design flaw in the engine block allows engine coolant to breach the cylinder head gasket area and pool inside the combustion chambers. This presents a critical safety hazard: the vehicle is at risk of sudden engine stalling while driving on public roads, a complete loss of motive power in traffic, and potential engine hydro-lock, which can cause catastrophic mechanical failure or an engine compartment fire. Ford is refusing to address this safety defect outside of warranty, leaving a hazardous vehicle on the road.

Filed Mar 12, 2025 · Engine · 56,000 miles · TX

The contact owns a 2019 Ford Fusion. The contact stated while driving at an undisclosed speed, the vehicle shuddered and loss automotive power. No warning light was illuminated. The vehicle was towed to an independent mechanic where it was diagnosed and determined that the spark plugs needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was towed back to the independent mechanic where it was diagnosed that the coolant reservoir tank needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was taken to a different independent mechanic where it was diagnosed that the engine needed to be replaced. The contact researched and was made aware of an unknown recall; however, the VIN was not included. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 56,000.

Filed Dec 19, 2024 · Engine · 86,900 miles · SC

The contact's wife owns a 2019 Ford Fusion. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated, and the vehicle shuddered abnormally. The contact discovered that smoke was coming out of the exhaust. The contact researched and was made aware of an unknown recall however, the VIN was not included. The vehicle was taken to a dealer where it was diagnosed that there was internal coolant intrusion into the engine and that the engine needed to be replaced. 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 86,900.

Filed Sep 20, 2024 · Engine · 80,000 miles · CT

The contact owns a 2019 Ford Fusion. The contact stated while driving at an undisclosed speed, the vehicle shuddered. The check engine warning light was illuminated. The contact was constantly adding coolant to the coolant reservoir. The vehicle was taken to a dealer and the contact was informed that coolant was leaking into the engine. The vehicle was repaired. The contact researched online and became aware of an unstated the federal safety agency Campaign Number; however, the VIN was not included. The manufacturer was notified of the failure. The failure mileage was 80,000. The VIN was not available.

Filed Jul 10, 2024 · Engine · 95,790 miles · FL

The contact owns a 2019 Ford Fusion. The contact stated while driving 40 MPH, the vehicle lost motive power and started to shudder. The check engine warning light was illuminated. The vehicle was taken to the local dealer, who determined that the failure was due to a misfire in cylinder #3 and was associated with DTC code: P0303. Additionally, there was coolant intrusion into the engine block. The vehicle was not repaired. The contact stated that the failure was related to Customer Satisfaction Program: 21N12. The manufacturer was contacted and opened a case and referred the contact to the federal safety agency Hotline. The failure mileage was approximately 95,790.

Filed Jul 5, 2024 · Engine · 87,500 miles · FL

The contact owns a 2019 Ford Fusion. The contact stated while driving 25 MPH, the vehicle started shuddering. The check engine warning light was illuminated. The vehicle was taken to two independent mechanics, where the spark plugs and two coil packs were replaced; however, the failure persisted. The vehicle was taken to a third independent mechanic, where it was diagnosed that cylinder #2 and #3 were misfiring due to coolant intrusion into the engine. The mechanic determined that the engine needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was approximately 87,500.

Filed Mar 20, 2024 · Engine · VA

I am second owner. At just before 110,000 miles the motor expirenced shuddering, with misfires, from P0303. I was able to get it to a Ford Service Center. Diagnosis with a borescope reveled coolant into cylinders 2and 3. Almost 8,000 dollars later, a new motor. In my Opinion, the cost of the actual motor should be free, or at least less then 2,700. I do not think it's very fair for Ford to profit from their own defective design. Thanks.

Filed Aug 11, 2023 · Engine · 88,000 miles · KS

The contact owns a 2019 Ford Fusion. The contact stated while driving at various speeds, the vehicle failed to properly accelerate. The contact stated that the vehicle was shuddering and vibrating. The contact stated that the engine was consuming an excessive amount of coolant. The vehicle was taken to a local dealer who diagnosed that there was coolant in cylinder #2, causing the engine block to crack. The contact was informed that the engine needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 88,000.

Filed Jun 28, 2023 · Transmission · 29,000 miles · FL

The contact owns a 2019 Ford Fusion. The contact stated that while driving at various speeds, the vehicle shuddered with an engine misfire. There was no warning light illuminated. The vehicle was taken to the dealer on three separate occasions and diagnosed with a defective torque converter. The torque converter was replaced after remaining in dealer's possession for more than 30 days. The engine misfiring returned, and the vehicle hesitated while depressing the accelerator pedal. The vehicle was taken back to the dealer, but the contact was offered no assistance. The manufacturer was then notified of the failure and the contact was referred to the federal safety agency Hotline. The vehicle was not repaired. The failure mileage was approximately 29,000.

Filed May 10, 2021 · Engine · 28,700 miles · IL

Car shudders/shakes intermittently on cold starts. Check engine light came on may 3 at 11am. Taken to dealer on may 3 at 4pm. After dealer inspection, advised on may 5 that coolant leak into cylinders is requiring a new engine at 28,700 miles. Dealer advised there is a tsb on this and it is a common problem with the engine.