Engine And Engine Cooling Problems of Honda Accord - part 1

The vehicle, a 2019 Honda Accord, experienced a catastrophic engine failure (blown head gasket) and entered "limp mode" after being operated for approximately 18 months with an unaddressed, high-priority federal safety recall (NHTSA 23v-858). The vehicle currently displays dtcs p0100, p0113, and p023d, which indicate severe air/fuel metering and boost pressure correlation failures. Primary cause: consequential thermal stress the primary cause is likely thermal degradation of the head gasket resulting from a prolonged "lean-burn" condition. Recall defect: the recalled fuel pump impeller is known to deform, restricting fuel flow. Lean condition: a restricted fuel supply causes the engine to run "lean" (too much air, not enough fuel). Lean combustion is significantly hotter than normal combustion. Heat accumulation: over 1. 5 years of operation with this restricted flow, the engine experienced repeated, excessive thermal cycles that compromised the structural integrity of the head gasket. Limp mode trigger: the stored codes (p0100/p0113) show the ecu was struggling to compensate for the erratic fuel/air environment created by the failing pump. Secondary assessment (the dealer's claim): the service advisor (paul) has alleged that aftermarket components and a missing turbo gasket caused the failure. Assessment: while aftermarket parts increase scrutiny, a missing external turbo gasket typically causes an exhaust leak or loss of boost, not an internal head gasket failure. Contradiction: the dealer must provide empirical proof that these parts caused the failure, whereas the NHTSA recall is a pre-documented, manufacturer-admitted defect known to cause the exact stalling and "limp mode" symptoms the vehicle is currently exhibiting. Conclusion: the most probable cause is manufacturer negligence. By failing to provide a remedy part for 18 months, the manufacturer forced the vehicle to operate under a documented defect that creates the exact high-heat conditions required to cau.

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I own a 2019 Honda Accord equipped with the 1. 5l turbocharged engine. At approximately [142,000] miles, the vehicle began overheating and losing coolant with no visible external leaks. A Honda dealership diagnosed the vehicle with a blown head gasket caused by coolant intrusion into the engine. The repair cost quoted was several thousand dollars. Honda has denied goodwill assistance dates Dec 16, 2025 at 1:35pm, despite documented maintenance and the widespread nature of this issue in Honda 1. 5l turbo engines. This failure occurred under normal driving conditions and presents a safety concern due to sudden overheating, loss of engine power, and potential engine failure while driving. I believe this is a known design defect affecting multiple Honda vehicles, and Honda has failed to properly disclose or remedy the issue.

Unknown I was not advised or informed of any recall.

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I had a coolant link problem they couldn't find or fix even after taking it in over 4 times ,how I have a blown head gasket ,also different components in my ac keep going out have had to fix 3 times in the last 3 years, both these are know issues for this year Honda.

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After vehicle got serviced an open recall for fuel pump, my car has been having issues. I know is related to the head gasket/fuel injections. My car has been great, monthly maintenance service up until I got that recall fixed. I now regret it getting repaired, but I had to, to be able to receive my dmv tags. I was driving about 45 mph and vehicle stopped accelerating will not speed over 20 mph and the check engine light turned on. Just got full transmission flush and oil change and this happened. I read many article online that this happens after this recall repair to the Accord 1. 5t ex2018.

I had just left my job in albany and was headed to the latham area, while merging into traffic on I-90 west my 2020 Honda Accord ex-l started to rattle and slow down, numerous lights illuminated simultaneously on my dashboard. I immediately pulled off the north shoulder and restarted my vehicle to no avail, the dashboard lights were still lit and my vehicles speed and steering were compromised. My safety was put at risk due to the immediate issues as previously described while in heavy traffic, I could have easily been involved in an accident due this issue. The system keeler Honda advised me that had failed was allegedly the head gasket leaking coolant into the engine by means of cylinder four. I was later informed by keeler that this is a common issue with the Accord 1. 5 l turbo engines. The problem has been verified by keeler Honda. There was no prior warning light on my dash that would have indicated there was an issue with my vehicle, the lights only all appeared once the incident had occurred.

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The fuel system on my 2022 Honda Accord malfunctioned and caused a sudden loss of power while my teenage son was driving. On 12/03/2025 at approximately 4:50 pm, the vehicle went into reduced-power (limp) mode while traveling in heavy highway traffic on a busy highway in a metro-area of >450,000 people. There was no shoulder available in which he could navigate onto. He was unable to accelerate and had to coast approximately one mile at low speed while many, many cars were driving around him during rush hour traffic , which created a dangerous situation with vehicles traveling at normal highway speeds. A Honda dealership has previously inspected and confirmed the problem. On 07/28/2025, the service center documented lean fuel condition, misfire codes (p0301, p0304), failed fuel-rail pressure, and injector-related faults. They recommended replacement of fuel-system components. The printed report and repair estimate are available for inspection upon request. Prior to the safety incident, the vehicle intermittently displayed symptoms such as hesitation during acceleration and irregular engine operation, but no permanent warning light stayed on. The failure has progressed over time and the same loss-of-power condition can recur at any time. This poses a risk because loss of propulsion in moving traffic can lead to a collision. The component issue has been confirmed by the Honda dealer, and documentation is attached. I am filing this report because the failure creates a safety hazard, has been reproduced by a local dealership, and has not been resolved. The repair show suggested I return to Honda for repair. Furthermore, during my research of this problem, I discovered tens of thousands of complaints from others experiencing this exact issue, including new low mileage vehicles. These complaints are available on all social media platforms and search engines, with each complaint indicating problems with the fuel injectors on engines using direct fuel injection.

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Head gasket caused by 1/4 inch head bolts and torqued to 50 lbs multiple people have filed a class action lawsuit regarding this and it’s affecting most Hondas with a 1. 5l engine. It caused misfiring and jerking it was inspected and confirmed by Honda service center that my head gasket was blown and I had purchased the car 12k miles ago.

While driving the car at approx 45mph on a busy roadway the vehicle suddenly accelerated heavily I tried applying the breaks but the pedal did not go down and had no affect of slowing the vehicle. I was forced to swerve around several vehicles to avoid a collision then just as suddenly the car returned to normal operation. The duration on the incident was approx 5 to 10 seconds. Very dangerous and very scary.

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Started the car and the system was not booting up properly. Had to restart the car a few times for the system to boot up properly. Took 3 min to start up after restarting the car. No error codes just major lag and delay. Car was updated to the most current update and no new updates were available at the moment. Bluetooth also has a hard time connecting to mobile devices. Engine makes weird sound when accelerating on the highway in eco mode. Sometimes feels like misfires when accelerating. When entering the car from outside the seat sometimes does not adjust back to the original position stays at the extended position it does when getting out of the car. Requires me to adjust my seat consistently.

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Vehicle accelerated on its own and propelled the vehicle over a curb and into a building. This occured even though the gear shift was in the park position. My grandchild and I were thrown forward as vehicle hit the building. Vehicle has not been inspected since incident occurred just yesterday, 11/20/2025. No warnings preceded the incident,.

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The contact's girlfriend owns a 2021 Honda Accord. The contact stated that while his girlfriend was driving at an undisclosed speed, the check engine warning light and several other unknown warning lights illuminated. Additionally, the contact stated that the engine was slightly misfiring while driving. An independent mechanic replaced the spark plugs and the ignition coils at the residence; however, the failure recurred 3 weeks later. The mechanic inspected the vehicle but could not determine the cause of the failure. The vehicle was taken to the dealer, where it was diagnosed with head gasket and fuel injector failure. The contact was provided an estimate for the repair. The vehicle was not repaired due to the cost. The manufacturer was not notified of the failure. The failure mileage was approximately 74,000.

Within 48 hours of taking possession, the vehicle suffered a blown head gasket, a catastrophic mechanical failure that constitutes a pre-existing latent defect—a serious condition that existed prior to the sale but was not disclosed to me. This defect renders the vehicle unsafe, inoperable, and unfit for its intended use. Claims that I did not purchase the optional 2-day cooling-off period or that the vehicle is covered under a manufacturer warranty are legally irrelevant. Under California civil code §§ 1791. 1 & 1792 (implied warranty of merchantability), a dealer is obligated to sell a vehicle that: 1. Is safe and operable at the time of sale 2. Is fit for ordinary driving purposes 3. Does not contain major latent defects that make the vehicle unsafe, inoperable, or unusable immediately after purchase the presence of a pre-existing latent defect is a direct violation of these provisions. The manufacturer warranty does not excuse the sale of a vehicle with a defect that existed at the time of purchase. I am therefore demanding, without delay: 1. Immediate rescission of the sales contract by raceway Nissan 2. Full refund of all funds paid, including deposits and trade-in credits 3. Coordination with valley strong credit union to fully rewind the auto loan, including principal, interest, fees, and any other charges 4. Confirmation that I will have no financial obligations related to this purchase once the rescission is completed.

Engine knock caused by oil dilution which is known manufacturing issues with my model of car.

I had to have the injectors replaced in April 2025. In November I was told a had a busted head gasket $5800. 00 to fix. Many Honda owners have had this problem. Honda customer services refuses to help.

Defective turbocharged engine that is prone to overheating, head gasket failure and other problems. Design defect that causes engine coolant to leak into the cylinders.

I am the original owner of a 2019 Honda Accord hybrid that I have taken to envision Honda of milpitas. I have been consistently maintaining According to Honda’s recommended service schedule. No prior issues were noted. What happened to it is beyond normal wear and tear (failed head gasket). My car only had 78,731 miles on it when incident happened. I did not have any concerns with the vehicle until 11/12/2025 while driving on freeway. On 11/12/2025, while commuting home from work in the evening on the freeway, all warning lights came on (10/10 lights, including the check engine light). The vehicle could not exceed 50 mph on freeway, and began rumbling. The vehicle had no prior issues. I exited the freeway with hazard lights activated and contacted aaa for assistance. I took my car to envision Honda of milpitas the next day (11/13/2025) was informed that the head gasket was blown off. "cylinder leak down test done and found head gasket is blown on chamber 1 causing the coolant to leak inside the combustion chamber and causes cylinder to misfire. Recommend to perform teardown and inspection, head gasket replacement and re-check. " it was dangerous as I was not able to speed more than 50 mph in the freeway while other cars were going fast. I am currently pregnant and was scared.

Car has lost power or gone into "limp mode" while driving on multiple occasions. Car was never listed under the fuel pump recall but had all associated symptoms & problems. Had to have fuel pumps replaced in December 2023 due to car not starting because of faulty fuel pumps. Car has been properly maintenced since purchased brand new in February 2018. Currently around 121,000 miles. Car overheated this past summer, coolant seems to be leaking somewhere as just filled with coolant month ago and needed to refill with about quarter to refill to correct amount. Oil also seems to be having slow leakage problem somewhere within the engine as there is excessive oil on drip pan. Had all 4 spark plugs changed in March of 2025. Car has been going into limp mode and looses power for few seconds to minutes sometimes, almost causing multiple accidents while driving on highways. Pull over to shut off and give few minutes to restart and able to resume driving no warnings before this occurs. Randomly all dashboard lights light up 2 weeks ago and put car into limp mode, was driving on highway at high rate of speed (65mph) safety was compromised several times while this occurs. Engine seems create knocking sounds to known due to oil dilution problem. Cold weather seems to affect issues to onset more often. Also been having stalled or rough start ups in colder weather or when engine is not warmed up. Researching these issues seems to be that 2018 Honda Accords had known head gasket failure. This should become a class action lawsuit and also a recall.

My Accord v6 suffered catastrophic engine failure due to a bent connecting rod/seized bearing while driving at highway speeds. This is the exact same failure described in recall 23v-751 for other Honda v6 models.

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This has happened out of the blue and randomly more than once recently. Loss of power/no acceleration. Once it had no acceleration when taking off from a stopped position, and then again it lost acceleration while driving at a speed of around 50mph the car would no longer accelerate, had to pull off to the side of the road and turned the car off and let it sit for a few minutes and then restarted the car and it resumed to function normally. There are no codes in the system, no warning lights, this has happened 4 different times now. Honda says they cant do anything if they cant make it repeat the problem when they diagnosis it and if the system doesnt have any active codes in it.

While driving on the NJ garden state parkway on an incline, the car went into limp home mode in the middle of heavy traffic causing the speed to get dangeriousily very slow. I had to make my way across many lanes to get the edge of the road. After shutting off car I was able to restart and drive to work. My father came to my work and looked at car and added Honda antifreeze becuase it had seeped into combustion chambers then drove the our Honda dealer. Just before he got to dealer driveway the car missed and hesitated but was able to make it to dealer. Dealer determined it was the common problem with the 1. 5t engines, the head gasket failed. Check engine light never went on or any overheating (I was lucky) . While engine was apart, other work was agreed to as being cost-effective. The car prevousily had Honda car with 0 deductable until 100,000 miles. Car has always been serviced by dealer with more service than Honda requires and I have all service records from purchase to prove it. Last service before incident was 10/14/2025 . What makes this worse is that my son (2018 civic) and my brother (2020 Accord) also have Honda cars that are destined for the same failure based on what is known about the defective 1. 5t engines.

The problem I am having with my vehicle Honda Accord 2018 is with the head gasket. I was on the highway and as I was driving suddenly all the signs came on the display and gave a warning that my vehicle is overheating and it came down to 20mph while I was on the highway. This was very risky to me and the other vehicle around me.

Engine head gasket- the engine sucked the water from the radiator. Car overheat in highway and I had to wait for help to open the radiator to fill it with water an independent service center yet- I will take it to a dealer Wednesday the 12th the dash lights came up and the next day the temp indicator was going up and down.

The problem I am having with my vehicle Honda Accord 2018 is with the head gasket. I was on the highway and as I was driving suddenly all the signs came on the display and gave a warning that my vehicle is overheating and it came down to 20mph while I was on the highway. This was very risky to me and the other vehicle around me. Then when I took it to the dealership to diagnose they said it is a head gasket failure. The repairs they have recommended are very expensive and after researching this problem it shows this is a very common problem Honda vehicles are having. This is a manufacture problem which they should have a recall on hence with such expensive repair and I only have 93k miles on my vehicle. I always thought Hondas were the best vehicle going long term and as I am first time owner and this being my first vehical brand new I am very disappointed with the problem I have been facing with my vehicle.

I was driving the car and it stopped working the car was just rolling, it lost speed in the road! all the warning lights were displaying, including the engine light. I took this car in to have a dynastic test at the Honda dealership. They reported it was the head gaskets. I’m very disappointed and don’t have the extra money for experience repairs.

My vehicle is losing power while traveling on the road. All of the system lights are flashing and the gas mileage is ridiculous. It sputters uncontrollably and just stalls out and drops speed really quick. I’m really concerned for my well being. I’ve spent so much money trying to fix these issues and I don’t think it’s fair to me or any other Honda owner to have to be held responsible for something that is clearly a manufacturing issue. Although there was not a crash during this incident, it’s very dangerous and I’m terrified to drive my car but I have no other transportation right now.

Blown head gasket at 98. 5k miles.

While driving my 2019 Honda Accord, after about five minutes on the road, multiple warning lights suddenly appeared on the dashboard. The emission system, brake system, power steering, tpms, acc, hill start assist, collision mitigation, and vehicle stability assist warnings all came on at the same time. The alerts caused concern for safety, as several major systems such as steering assist, braking, and driver-assist features appeared to malfunction simultaneously. The issue seems related to an electrical or charging system failure (such as the alternator or battery), since all of these systems rely on stable voltage to operate correctly. The incident occurred without warning and could have resulted in loss of steering assist or engine power while driving.

I took my 2018 Honda Accord into the dealership to get the fuel pump recall fixed, which took a year to get scheduled. I got that fixed in August, prior to getting the replacement I hadn’t had any issues with the car. About a week ago my car started sputtering and bucking while I was driving it. It felt like it wasn’t getting any fuel. The car left me sit on the highway, threw an engine misfiring code and almost caused an accident because it wouldn’t accelerate, and there were angry drivers behind me. I called the dealership, managed to get it there and they are now telling me I have a bad head gasket, which they want $5000 to replace. I had no prior issues and there initial inspection of the car after changing the fuel pump recall, had nothing about any issues with my coolant or gaskets. Is this a recurring problem with the 2018 Honda Accords 2. 0t. Since this was the first year this engine was made.

Cylinder 2 scorned to sever to fix.

2018 Honda Accord sport, 1. 5 l motor, 60k miles. Loss of power under throttle. Bad head gasket. Diagnosed by dealership.

Defective fuel pump from fuel pump recall led to faulty fuel pump injectors, which led to all warning lights to come on at the same time. Honda is refusing to take responsibility of faulty parts that put the consumer at unnecessary risk of injury.

The car when pressing the accelerator will decelerate and go limp and won’t move. This is happening to a lot of Honda Accords. This will cause an serious accident.

Blown head gasket, car never overheated. Suddenly lost power in highway and car died. Dealership is stating blown head gasket. Seems to be a common issue.

Oil leaking on to spark plugs.