Lincoln Navigator engine failure problems

Filed Jul 2, 2026 · Fuel system · 70,300 miles · NJ

The contact owns a 2021 Lincoln Navigator. The contact received notification of NTHSA Campaign Number: 25V455000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The local dealer was contacted. The dealer confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact stated that vehicle failed to accelerate as needed due to a lack of fuel going to the engine. The contact stated that that the engine seized with the check engine warning light illuminated. The failure mileage was approximately 70,300.

Filed Jun 30, 2026 · Transmission · 170,000 miles · FL

The contact owns a 2018 Lincoln Navigator. The contact stated that while driving at 70 MPH, the transmission seized, and the vehicle failed to accelerate. The contact stated that several unknown warning lights were illuminated during the failure. Additionally, the brake warning light was illuminated, and the message “Loss of Power” was displayed. The failure was a recurring failure. The contact associated the failure with the federal safety agency Campaign Number: 26V402000 (Power Train). The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 170,000.

Filed Jun 2, 2026 · Seat belts · 93,000 miles · TX

The contact owns a 2019 Licoln Navigator. The contact stated while the vehicle was parked, the front driver and passengers seat belts retactators seized. The vehicle was taken to the dealer where it was diagnosed with failed front drivers and passenger seat belts retractor. The contact was informed that the front driver's and passenger's seat belt retractors needed to be replaced. The vehicle was not repaired. The contact was informed of an open recall assoicated with the contact's VIN, the federal safety agency Campaign Number: 26V344000 (Seat Belts) however the parts were unavailable. The contact was advised to contact the federal safety agency Hotline and report the failure. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately

Filed May 11, 2026 · Engine · NV

While operating my 2013 Lincoln Navigator under normal driving conditions, a spark plug ejected from the cylinder head, causing immediate and catastrophic engine failure. The engine lost power and began producing severe mechanical noise, creating a potential safety hazard due to sudden loss of propulsion. Inspection by both an independent mechanic and an authorized Ford dealership confirmed that the spark plug ejection allowed debris to enter the combustion chamber, destroying internal engine components. The vehicle was properly maintained and this failure occurred without warning. This issue appears consistent with known problems involving the Ford 5.4L Triton engine design. Ford Motor Company has refused to escalate or investigate the failure despite documentation. Ford Motor Company Customer Relationship Center P.O. Box 6248 Dearborn, MI 48126 Re: Goodwill Assistance Request & Notice of Latent Defect Vehicle: 2013 Lincoln Navigator – 5.4L Triton V8 VIN: [XXX] Case Number: To Whom It May Concern, I am the original purchaser and continuous owner of a 2013 Lincoln Navigator equipped with the 5.4L Triton engine. For more than three decades I have exclusively owned Ford and Lincoln vehicles, including multiple Lincoln Navigators, Ford Expeditions, and Ford trucks — all purchased new. I also still own a 1991 Ford Mustang 5.0 GT Convertible acquired new in 1992 and a 1999 Ford pickup currently exceeding 350,000 miles. My history reflects long-standing brand loyalty and confidence in Ford durability. This Navigator has been properly maintained throughout its life. Oil changes were performed approximately every 3,000 miles by both independent mechanics and authorized service facilities. The vehicle currently has approximately 140,000 miles and remains in exceptional cosmetic and interior condition. The vehicle has never been used for towing or severe duty. While operating under normal driving conditions, the check engine light illuminated and the engine imme INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO

Filed Mar 9, 2026 · Electrical, Engine · VA

The vehicle has experienced repeated mechanical failures involving the engine, cooling system, drivetrain, and electronic systems. Documented failures include the navigation/APIM module, transmission jerking and drivability issues, transmission valve body concerns, cam phaser failure, driveshaft repair, front wheel bearing/IWE failure, coolant leaks from heater core hoses, and engine vibration requiring extensive diagnostic work including a short block engine repair. The vehicle has also experienced multiple overheating incidents despite prior repairs. Overheating occurred in May 2025, December 2025, and February 2026. During these events the engine temperature rose abnormally and coolant had to be added to the reservoir. Drivetrain problems including transmission jerking, vibration, and driveshaft repair also created drivability concerns while operating the vehicle at highway speeds. These issues have been inspected and confirmed by an authorized Lincoln dealership service department. Numerous repairs and diagnostics have been performed including APIM replacement, cam phaser repair, heater hose replacement, wheel bearing/IWE replacement, driveshaft repair, and engine diagnostic work approved through warranty processes. Symptoms prior to failures included overheating, vibration, excessive fan noise, whining while driving, and transmission jerking. The vehicle and components are available for inspection upon request. The repeated overheating events combined with drivetrain and engine failures raise concern that this vehicle may have an underlying safety-related defect that could result in sudden loss of power or engine failure while operating in traffic.

Filed Feb 11, 2026 · Engine · OK

Regularly maintained 2020 Lincoln Navigator at 78,000 miles experienced engine failure with no warning. No check engine light until we experienced power issues and engine shuttering. We took the vehicle directly to the mechanic within an hour of check engine light. They changed the oil and said to go to the dealer. Dealer assessed the vehicle as follows: Bottom end failure of the short block which caused a knocking noise. Confirmed metal debris in the engine oil. Seals failed and leakage occurred. Recommend complete engine replacement. This is the same issue occurring in newer models. Recalls and class action lawsuits filed due to this exact issue. This is premature engine failure requiring complete engine replacement on a 5-year-old vehicle. Major safety concern since the engine can seize up at any time. Imagine going 70 miles per hour down the highway and your engine seizes up with semi trucks around you, and your entire family is in the vehicle. This is beyond unacceptable. Now Lincoln expects us to pay $15,000+ for a new engine. Federal and state oversight organizations are created and funded by our taxpayer dollars to stop these problems and hold these manufacturers accountable. Please do something about this failure.

Filed Aug 29, 2025 · Engine · MI

Catastrophic engine failure on 2020 Lincoln Navigator at 93,000 miles. Oil contamination in cylinder 6 caused complete compression loss due to piston ring failure. The engine suffers from failed cam phases and excessive carbon build up which are known failure points of this engine. Ford Technical Service Bulletins 20-2423 and 23-2143 document this as a known manufacturing defect for vehicles in my build timeframe, proving Ford was aware of this problem before production. This is premature engine failure requiring complete engine replacement on a 5-year-old vehicle. The failure pattern matches ongoing class-action lawsuits against Ford for EcoBoost engine defects. Safety concern: Catastrophic engine failure without warning while driving creates risk of sudden loss of power and potential accidents. Lincoln customer service has admitted these vehicles have this issue but refused escalation despite documented manufacturing defect and broken multiple callback promises. Request the federal safety agency investigation into 2020 Lincoln Navigator 3.5L EcoBoost engines for premature piston ring/compression failures related to carbon buildup and failed cam phasers as documented in Ford's own service bulletins.

Filed Aug 15, 2025 · Seat belts · 97,000 miles · OK

The contact owns a 2019 Lincoln Navigator. The contact stated that the passenger’s side seat belt had seized. The contact stated that the seat belt was inoperable and could not be used safely. There were no warning lights illuminated. The contact called the local dealer and was referred to the manufacturer for assistance. The vehicle was not diagnosed or repaired. The manufacturer was contacted and declined to provide a goodwill repair. The failure mileage was approximately 97,000.

Filed Jun 23, 2025 · Engine · FL

Purchased a 2019 Lincoln navigator in 2024 used at a dealership in Orange Park Florida. The vehicle was taken to the same dealership for an oil change, which is a Volkswagen dealership. I started to hear a loud shaking noise after starting it up. I took it to O’Reilly‘s auto parts and had to put on a machine and I also took it to Paul, Clark Ford and Yulee Florida. I was told by both that it was the cam phaser. The vehicle was also leaking coolant, and now the engine has completely blown in the vehicle. It has been sitting at a Lincoln dealership for three weeks with a blown engine due to the cam phaser Echt that was never addressed or corrected by Ford. The vehicle is just sitting. It’s now a boat anchor.

Filed Apr 21, 2025 · Engine · TX

No warning light on dash. Issues engaging in gears. SUV failed to shift in gear and engine rev up And takes 2 to 10 seconds to catch again before engine engages. No accidents yet. Additionally, during cold start my SUB is making a rattling and ticking sound and the SUV would shake. There were no engine failure or warning lights that came on and the engine doesn’t sound like it’s running correctly.