Engine And Engine Cooling Problems of Lincoln MKC - part 1

I am filing a formal safety complaint regarding my 2017 Lincoln Mkc equipped with the 2. 0l ecoboost engine (VIN: [xxx]). The vehicle has experienced a severe, progressive engine failure caused by internal coolant intrusion into cylinder 1, directly matching the structural design defect detailed by the manufacturer in technical service bulletin TSB 22-2229. This defect allows pressurized engine coolant to continuously leak directly into the combustion cylinders while driving and during engine rest. This creates an immediate safety risk of vehicle hydro-locking during ignition, sudden mid-drive engine stalls at highway speeds due to severe misfires (fault code p0301), and unexpected engine overheating. The manufacturer has knowingly built these open-deck engine blocks with narrow coolant grooves prone to fracturing, creating an ongoing risk of sudden thermal failure and power loss in active traffic. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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There is coolant intrusion into the cyl. It is a known concern and many complaints on line. Lincoln refuses to assist in the engine repair or replacement. Going down the road the engine misses and looses power causing difficulty controlling vehicle causing unsafe conditions for all traffic.

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2. 0 ecoboost coolant intrusion in cylinder #4 issue with block defect. Ford motor company wont cover issue.

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Check engine light p0302 engine misfire cylinder 2. I noticed low coolant in the overflow tank. Went to dealer they did a pressure test found coolant intrusion inside cylinder 2 open TSB 22-2229 car or SUV if coolant gets into cylinder can cause engine failure.

Misfiring and then smoke in tail pipe. Just hit 70,000 miles and the engine needs replacing. A defect that's been known since I bought the car.

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I am thoroughly disappointed and overwhelmed. My vehicle has 122,000 miles on it. Yes that may be considered many for some but this vehicle has been taken care of extensively and all routine scheduled maintenance has been performed. I purchased from preston Ford in pittsville, MD and the vehicle had 48000 miles as a used vehicle. I have had many minor issues,(fuel flap), a/c issues and 2 recalls for back up camera and the vehicle had a recall stating the car may catch on fire so don't park near other structures. Supposedly both recalls were taken care of by the seller of my vehicle. Now I am told I need a new engine, my engine light came on and I thought it was the purge valve assembly. Now this is my first Ford product so I am sad to report this. I still owe on this car and was told a new engine would cost about 10,000. I use the car for work and is my livelihood. I do not know who to contact and would hate to see someone else with this same experience. I feel if you take care of your vehicle it should get more than 122,000 miles.

The engine on my 2019 Lincoln Mkc has failed due to coolant intrusion. A known issue with this model car between 2017-2019. There are two cracked cylinders on the engine block. The dealership says that the engine must be replaced.

Component: engine (2. 0l ecoboost) — coolant intrusion into cylinders what failed: the engine in my 2019 Lincoln Mkc (2. 0l ecoboost, approximately 83,000 miles) failed due to internal coolant intrusion into the cylinders. This is a known defect in this engine, documented by the manufacturer in TSB 22-2229 (superseding TSB 19-2346), which acknowledges coolant leaking into the cylinders on 2. 0l ecoboost vehicles and specifies complete long block engine replacement as the only repair. My vehicle and the failed engine are available for inspection upon request. The car/engine is currently at the [xxx] Ford in draper, ut. Safety risk: coolant intrusion causes engine misfires and can cause sudden loss of engine power while driving, hydro-locking of the engine, and — per the manufacturer's own bulletins and pending litigation — overheating, cracked cylinder heads, and engine fires. The check engine light began flashing while I was on the highway. I am also a dialysis patient awaiting a kidney transplant, and a sudden engine failure or stall while driving to medical treatment poses a serious safety risk. Confirmed by a service center: yes. On or about xxx, [xxx], a franchised Lincoln dealership, performed a borescope inspection of the engine and confirmed the failure, stating the engine must be replaced at a quoted cost of $7,897. 45. I have the written diagnosis and repair estimate. Inspected by the manufacturer or others: no police or insurance inspection was involved, as this was a mechanical failure rather than a collision. Warning signs before failure: unexplained low coolant level requiring repeated top-offs; white smoke from the exhaust, especially at cold start; check engine light, steady or flashing; rough running or misfire, often with codes p0300–p0304 or p0316; sweet coolant smell. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Engine has coolant intrusion at 57,000 miles. Mechanic recommends full engine replacement.

Check engine light came on. Next day had a diagnostic run on it and found the coolant intrusion into cylinder 2. A new TSB 19-2208 was recommended. Talked with dealership and they advised to contact Ford customer care, who had roadside assistance come and pick up the 2018 Lincoln Mkc and take to dealership. Dealership called to advise that the cost to me would be $9400!!!. Called Ford customer care again and was told that there is no recall or program to assist with repair, but. . . . If enough people make a call in then down the road there "might" be a recall. My info will go to corporate, however, being as the car is years, 9 months old --there probably won't be any help. My vehicle only has 59, 300 miles on it. !!!! while it is not a customer issue, but a Ford issue, and Ford has replaced other tsbs, this one doesn't seem have enough "call-ins" yet to get Ford's attention.

About 3 weeks ago, I was driving, and a red flashing light came on, signalling that my coolant was low. I bought radiator fluid and put it in up to the fill line. I visited my daughter, which is 11/2 hr. Away. I checked the radiator reserve when I arrived at her house. The reserve was empty again. I brought it to a local mechanic shop. They diagnosed that I have coolant intrusion in the engine. They said I would need to pay for a new engine around $8800-$9200. I had purchased a lifetime extended warranty when I purchased the car. The Ford dealership diagnosed my car with the same problem as the local mechanic. They said the repair was not covered by the powertrain warranty do to it being a manufacturing failure. I brought the car home and it has been parked since.

The contact owns a 2019 Lincoln Mkc. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The contact stated that the following day, while attempting to start the vehicle, the contact noticed white smoke coming from the exhaust. The contact stated that while driving at an undisclosed speed, the vehicle idled and drove unusually rough. In addition, the contact stated that the vehicle misfired. The vehicle was taken to the dealer where it was diagnosed with a failed engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact referenced two technical bulletins, TSB 19-2346 and TSB 22-2133, which had similar failure descriptions. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 96,000.

Lincoln Mkc 2017 engine failure due to coolant leak. Bought new Lincoln Mkc 2017. The current mileage is 52, 500. Upon starting, engine would shake for about 10 seconds. The engine light would come on. Engine light would turn off and on for few weeks. The dealership diagnostic indicated code p0301. I was advised full engine replacement. Currently the engine is not starting at all. I have heard it's a design issue with the engine. I have contacted multiple Lincoln dealerships, and each one has its own engine replacement costs. Lincoln concierge declined my request to help in anyway although it seems to be a design issue with the engine.

The contact owns a 2017 Lincoln Mkc. The contact stated upon starting the vehicle, the vehicle idled roughly, and there was white smoke coming out of the exhaust. The contact stated that the vehicle was experiencing excessive coolant consumption, and the low coolant temperature warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed that the engine had failed and needed to be replaced due to coolant intrusion. The vehicle was then taken to an independent mechanic, where it was determined that the engine replacement was not required, but the head gasket needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in a recall. The failure mileage was approximately 135,000.

Dealer confirmed there is a coolant intrusion in the engine and the engine needs to be replaced due to a known defect.

The contact owns a 2016 Lincoln Mkc. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to a dealer, where it was diagnosed that the supercharger-a and the under boost needed to be replaced. The vehicle was repaired; however, the check engine warning light was illuminated again. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000.

Engine failure TSB 19-2346, a known/common issue with this engine. The car only has 73,790 miles on it. The car started shaking when started, engine light on, empty coolant reservoir and off then parking brake came on randomly several times , and the brakes locked up twice, which resulted in going over a curb. Discontinued driving the vehicle after that incident obviously due to safety. Ford service center gave a $13,000 repair estimate. The vehicle is still at Ford and available for inspection.

I took my vehicle to the local Ford dealership for service due to a check engine light being on. They pulled the spark plug and found the cylinder full of coolant and found TSB-22-2229. I called Lincoln and was told they wouldn’t assist me because I fell outside their time and mileage limits. This issue should have been a recall due to their defective engine design. Engine replacement is very costly and the company should take responsibility for this flaw.

Issue description: the vehicle developed a check engine light and was diagnosed with a p0302 cylinder #2 misfire. The condition persisted after basic troubleshooting, and the vehicle was taken out of service to prevent further damage. The vehicle was subsequently brought to an authorized Lincoln dealership for diagnostic evaluation. The dealership confirmed that the vehicle requires a full engine replacement due to internal engine failure. The estimated cost of repair is approximately $9,500–$10,000. This failure occurred at approximately 64,000 miles, which is significantly earlier than expected for a major engine failure. Safety concern: the engine misfire and internal failure can lead to loss of power while driving, creating a potential safety hazard, particularly at highway speeds or during acceleration. Additional information: manufacturer technical service bulletins describe coolant intrusion issues in 2. 0l ecoboost engines that can lead to misfires and engine damage. The symptoms experienced in this vehicle are consistent with those described conditions. The manufacturer was contacted for assistance but declined to provide support. Summary: premature engine failure at low mileage requiring full engine replacement, with symptoms consistent with documented issues affecting this engine type. This condition presents a potential safety concern due to possible loss of power while driving.

The contact owns a 2017 Lincoln Mkc. The contact stated that while driving at an undisclosed speed, the vehicle sputtered with a misfire coming from the engine, with the check engine warning light flashing on the instrument panel. The vehicle was taken to the dealer where it was diagnosed with coolant intrusion in cylinder #3, which caused the engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 111,000.

Related to previous recall [xxx] I had the recall repair done. But my car with only 86,744 miles now has coolant in cylinder 3 and it's misfiring so badly the car shouldn't/can't be driven. Dealership says the entire engine needs to be replaced. I have never had a car this low of mileage that an entire engine needed replacement. This is a design flaw in the 2. 0 ecoboost and I now have a probably $20,000 or whatever it may have been worth when it ran. . . Paperweight. It's just sputtering and spitting out loads of smoke as described in original TSB. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The check engine light came on and car started to over heat when taken into shop was told need to replace entire engine this is a known issue in these make / model cars with these engines and it is not being addressed.

The contact owns a 2019 Lincoln Mkc. The contact stated that the engine experienced rough idling after starting with the check engine warning light illuminated. The vehicle was taken to an independent mechanic, who replaced the spark plugs and coil pack; however, the failure recurred with the vehicle shuddering while driving. The vehicle was taken to the dealer, who determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 58,000.

Purchased a 2019 Lincoln Mkc from Mazda and stokes on ashley phosphate in north charleston, south carolina. I was told that the vehicle had recalls and they identify the recalls about the battery and the rear camera when I asked was there anything else wrong with the vehicle, they said no when I drove the vehicle home after a few days the engine light came on. After doing some diagnostics at the dealership, it will discovered that there was a misfire in the engine. They did a complementary repair. It took a couple of days when I received the vehicle. I took it home and after about a week, the engine light came back on for the same problem after further diagnostic come to find out that if this problem persist is because of coolant intrusion come to find out that this is common among engines that are 2. 0 l eco boost engine engines in the 2019 Lincoln Mkc. I am making a complaint because I found out also that I will not get reimburse my money. Neither will they take the vehicle back. I called the Lincoln dealership and they will not do a goodwill repair so I purchased a car about three weeks ago with them, knowing this problem and did not disclose it to me or told me about it cause this is common knowledge for this vehicle and they sold it to me and now I have payments on a broke vehicle, which I can’t afford $11,000 new engine or a long block.

My 2019 Lincoln Mkc has the widespread coolant intrusion engine defect acknowledged by Ford. This is a premature internal engine failure due to design.

Ford's 2. 0l ecoboost engine has seen recalls and technical service bulletins (tsbs) primarily for coolant intrusion leading to engine failure, affecting models like the 2017-2019 Mkc with issues stemming from a block design flaw and faulty head gaskets that allow coolant into cylinders, causing overheating, corrosion, and potential engine fires. This vehicle is confirmed to have coolant intrusion in the cylinders, resulting in premature engine failure.

The contact owns a 2019 Lincoln Mkc. The contact stated that the messages "service advancetrac", "hill start assist not available", "system off - to save battery please turn off ignition or start engine" were displayed. The vehicle was taken to the dealer, where it was diagnosed, and determined that the battery and the battery monitor sensor had failed and needed to be replaced. The parts were ordered to repair the vehicle. The vehicle was not yet repaired. The contact related the failure to NHTSA campaign number: 23v378000 (engine); however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was approximately 98,000.

Vehicle overheated, due to collant entering #1 cylinder. This coolant intrusion is apparently a well documented issue, from an acknowledged engine defect. (TSB 19-2346, TSB 22-2133) Ford dealership recommended an $11,000 + tax engine replacement, with no relief, as car is past its warranty. The vehicle has 58540 miles. Lincoln customer service also declined any goodwill repair. Independent service dealer (craig’s auto repair service 281-469-5949) first diagnosed the issue, recommended taking the vehicle to Ford dealership (tomball Ford).

Engine warning light went on. Replaced spark plugs and coil to cylinder # 2. Then, traction control light indicated system off. Technician advised the need for dealership software upgrade to abs. Dealership advised that engine block allowing coolant intrusion into #2 cylinder. Needs a new engine. And need for a new abs module, also defective.

I have a coolant leak and the dealership states that it's located in the engine.

Vehicle unresponsive after sitting idol at traffic light. When trying to accelerate, no power. Vehicle was still running, but unable to accelerate. Finally able to accelerate after rpms up to nearly 3000 rpms, and slow to respond and accelerate. Engine warning code on dashboard soon after. Error code is p0751, shift solenoid a performance stuck or off. Similar issue when under warranty in 2022 with 22,000 miles.

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The head gasket has failed, leading to coolant intrusion into the number 2 cylinder. Several misfires occurred due to this. This is a known issue due to the design of the lower block, which uses a channel, thus causing a very small surface area for the head gasket between the channel and the cylinder, which accelerates wear. Spent $3,000 to fix this well-known design issue. Car at ~100k miles.

My 2019 Lincoln Mkc with only 52,200 miles experienced unrepairable engine damage due to an internal coolant intrusion condition that directly matches Ford TSB 22-2229. On or around Jan 1st or 2nd, a check engine warning light came on as I was driving home at night. I did not drive my car any further except to the dealership for service on 1/5/2026. The engine failure was diagnosed by the dealership on 1/6/2026. This engine failure occurred well below a reasonable engine life expectancy, and is caused by a documented design defect. The manufacturer’s refusal/delay in recalling these engines with a known design defect places drivers at risk of being stranded at any time of day or night, and drivers risk becoming a road hazard to themselves and others when experiencing complete engine failure.

The 2017 Lincoln Mkc requires a full engine replacement due to a serious, well-documented defect: coolant intrusion. This is a major issue that can destroy critical engine components, including the head gasket, cylinders, and even the engine block. Ford/Lincoln is aware of this problem. They issued multiple tsbs (22-2133 and 22-2229, to name a few), yet customers are not informed. Because there is no recall, if the car is out of warranty, dealers refuse to perform the necessary repairs unless the customer pays tens of thousands of dollars for something that is a known manufacturing defect, leaving them vulnerable to catastrophic engine failure and potential accidents, injuries or worse. This is a known manufacturing defect, and consumers should not bear responsibility for the resulting safety hazards. Ford/Lincoln must take immediate action and issue a recall before it leads to serious injuries or fatalities.

I was driving home from work on December 24th 2025 and my 2018 Lincoln Mkc 2. 3l shut off on me while I was in motion. There were several cars that had to swerve and not hit me. The car would not start but I was able to put the vehicle in neutral and roll to the shoulder of the road. I was very scared and angry because this vehicle only has 54,646 miles currently, give or take 50 miles. I had to get the towed to my home. This needs to be resolved and fird/Lincoln needs to faithfully fix this dangerous defect, I could have died. Please please do something because I do not want anyone else to deal with this.