Engine And Engine Cooling Problems of Honda Accord - part 1

Two premature blown head gaskets and warped cylinder heads, the first at 95,000 miles, while driving on the freeway the car started to shake and all warnings lights came on, luckily I was not far from the dealership and took it right in. The second at 137,000 miles. The first repair was done at Honda of concord dealership and was covered under the extended warranty. Warranty has since expired and the issue has happened again. This time Honda is recommending that I replace the engine, while denying my request for a goodwill repair. The dealership quoted me $10,000 for repair, and my car is maybe worth only $13,000. Honda knows that there's a design flaw with the 1. 5l engines, but won't take any accountability for it.

See all problems of the 2018 Honda Accord 🔎.

I have a 2019 Honda Accord sport 1. 5. I was driving on the freeway last week and my car did not allow me to accelerate anymore. Car went to an unsafe highway speed and it was hard to get to a shoulder where can safely stop. I felt my safety was compromised by this issue. All the warnings appeared on my dash and all the lights went on. No warnings prior to this problem. I am needing a new head gasket and repairs are estimated over 5k. I know there is a class action lawsuit against Honda because this issue is extremely common. I need help. I can’t afford these repairs and I depend on my car for transportation to work and child care daily. Please hole Honda accountable for this is very dangerous and very common.

See all problems of the 2019 Honda Accord 🔎.

My Honda Accord keeps trying to turn off in the middle of the fwy and I know it’s due to the fuel pump, I have a misfire and all the warning lights came on. This is due to Honda having the fuel pump recalled that has damaged all the fuel injectors. It took them almost a year to get the recall parts and now myself and a ton of others are now having to pay for these fuel injectors to have a car that doesn't stall and die on the road. Honda should have taken care of this knowing it damaged the fuel injectors. Also issue with air bad supplemental issues.

I own a 2018 Honda Accord equipped with the 1. 5l turbocharged engine. At approximately 53,666 miles, the vehicle developed a rough idle, engine shaking during startup, intermittent check engine light, and a cylinder 1 misfire code (p0301). I took the vehicle to a Honda dealership for diagnosis. The dealership confirmed coolant intrusion into cylinder #1 after performing a cooling system pressure test and borescope inspection. The dealership determined that the engine has a failed head gasket and provided a repair estimate exceeding $6,000. The dealership advised that the vehicle should not be driven because coolant entering the cylinder can cause further engine damage, loss of power, engine stalling, overheating, or complete engine failure while driving. I believe this is a safety concern because the engine may misfire, lose power, or fail unexpectedly during vehicle operation. A major engine failure at only 53,666 miles is not consistent with normal wear and tear. I am submitting this complaint so that NHTSA can investigate potential defects involving coolant intrusion, head gasket failure, and cylinder misfires in Honda Accord vehicles equipped with the 1. 5l turbocharged engine.

Coolant leaks into engine components, causing overheating, loss of power, and contamination of engine oil. Head gasket failed.

There were no warning lamps or messages prior to the failure. My family was out of town, when the fire occurred. However, the neighbors were home and their home also sustained some damage. My home was a total loss. On June 16, 2026 I received a call while out of town that my home was on fire and it was a total loss. Statements from the neighbors and fire marshal were that the garage was on fire and then spread to the rest of the home. The only thing in the garage that could have started the fire was my hybrid vehicle.

See all problems of the 2023 Honda Accord 🔎.

Known issue by Honda; 2018 Honda Accord sport, 1. 5l 6s manual transmission. Head gasket is blown, alongside failed fuel injectors for the 1. 5l motor. Vehicle has been misfiring. Not accelerating properly which is causing the vehicle to suddenly slow down in traffic, promting potential vause for accidents. Almost was involved in 2 accidents due to the sudden and complete loss of power at a decent rate of speed. Cel came on twice, which then disappeared and the vehicle acted "normal" until acceleration. Took vehicle to a Honda dealer and was told it was the "spark plugs and the coil packs", even after explaining to them that there was engine oil on the piston heads, and low coolant. Left the dealer upset that they barely did any diagnostic work, and took it to an independant shop that actually completed a proper diagnostic performance, and confirmed the head gasket is leaking coolant, and the fuel injectors are failing. Known common issue that Honda is failing to recognize.

While driving the vehicle stops accelerating, it seems to have lost power and will not accelerate. It gives an error that says "check charge system" the vehicle has stopped accelerating while driving, most recently on the freeway while driving the car would not accelerate and I had to navigate to the side of the road while the car lost speed, causing hazardous conditions for myself, my children that were in the vehicle, and others around me. The car has been towed multiple times because of the same issue. I have attempted to have this vehicle repaired numerous times, at this point the mechanic has said that it is an issue with the vehicle itself and has suggested to contact Honda directly. The vehicle has only been worked on by independent mechanics. The lights on the dash blink while it occurs but there doesn't seem to be any forewarning that the issue will occur. It happens at random, no specific rate of speed. The issues started happening about a year ago, I have replaced the battery multiple times and have paid for other repairs but have not resolved the issue.

See all problems of the 2017 Honda Accord 🔎.

The contact owns a 2018 Honda Accord. The contact stated that the vehicle was taken to the dealer for an oil change; however, after leaving the dealer, the vehicle stalled while driving 25 mph. The contact returned to the dealer and notified the dealer of the issue. The contact was informed that the vehicle had experienced head gasket failure and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, and the contact was referred to the NHTSA hotline for additional assistance. The failure mileage was 99,000.

I am writing to file a complaint regarding a serious issue with my Honda vehicle involving the turbocharger system. The turbocharger appears to be failing, causing a significant reduction in vehicle speed and performance while driving. During operation, the vehicle suddenly loses power and acceleration, making it difficult and potentially unsafe to maintain normal traffic speeds. At the same time, multiple warning lights illuminate on the dashboard, indicating possible engine and system malfunctions. This issue creates a serious safety concern for both myself and other drivers, as the vehicle may unexpectedly slow down while traveling on highways or busy roadways. The condition has negatively impacted the reliability and dependability of my vehicle. I am requesting that Honda investigate this matter promptly and provide assistance in diagnosing and correcting the issue. If this problem is related to a known defect, recall, service bulletin, or warranty extension, I would appreciate being informed immediately.

See all problems of the 2022 Honda Accord 🔎.

Multiple misfires, dealer says blown head gasket after replacing coil and spark plugs. Quoted 6,500. Car still runs is not running hot no exhaust smoking. Told this is common issue after fuel pump was on recall and replaced. After fuel pump replaced car smelled of gas for 3 weeks.

Dashboard displayed multiple messages and icons/warnings. Steering wheel locked, acceleration was low, barely any power to drive. Engine running rough condition. Obd2 scanner p0302 and p0303 detected. Engine misfire. Honda dealership diagnosis car. Main concerns include a head gasket blown or crack. Coolant leaking into cylinder 2 and 3. Tie rod cracked. Pressure test low. The vehicle has no prior history of cylinder head removal or head gasket replacement. Vehicle has been properly maintained through consistent oil changes.

The contact owns a 2024 Honda Accord. The contact stated that while driving 50 mph, the instrument cluster lights illuminated. The message “emissions system power reduced – see dealer” was displayed. An unknown transmission message was displayed. The engine was not working properly. The message "pull over and turn off vehicle" was displayed. The contact pulled over for 10 minutes, restarted the vehicle, and continued to drive to the residence. The local dealer was contacted, and a service appointment was scheduled. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 75,000.

See all problems of the 2024 Honda Accord 🔎.

While driving my 2019 Honda Accord hybrid at highway speed, the engine suddenly suffered catastrophic failure. The engine block ruptured, leaving a large visible hole with internal engine components exposed. Oil was expelled into the engine bay and ignited/burned briefly. This occurred without prior warning at highway speed and created a sudden loss-of-propulsion hazard. The vehicle has approximately 48,500 miles and has had regular on-time maintenance via Honda dealership. No warnings or other symptoms were active prior to engine rupture event. Fire dept & nys police arrived on scene prior to being towed. The vehicle is currently preserved at sussex Honda dealer for inspection and awaiting diagnosis.

Blown head gasket. Engine lost power and forced me to pull over. The problem is well documented with this generation of Honda 1. 5t engines, Honda dealership confirmed problem and second opinion from independent shop also confirmed, citing they had another Honda with the same 1. 5t engine with the same blown head gasket issue. No clear warnings prior to event, all the dashboard lights flashed on when car lost power.

2018 - 2022 models of the Honda Accord sport are known to have a issue with the head gasket overheating and cracking causing cylinder miss fires and engine issue. Honda has refused to acknowledge the issue as a recall and my car recently suffered the same issue.

See all problems of the 2020 Honda Accord 🔎.

Blown head gasket between cylinders 2 and 3 at only 100k miles. Leaking coolant and causing overheating.

While driving, my check engine light cam on suddenly, along with my entire dashboard lighting up with all kinds of warning lights. At that moment, the engine ran very rough while attempting to push the accelerator pedal to maneuver out of traffic, feeling like there was no power. With that, I also noticed the temperature gauge start to increase towards the hot limit, though there was no venting of steam from the radiator. I stopped my car on the side, turned the car off, and waited u til it cooled down before attempting to start it again. When restart after a period of time, I noticed what smelled like coolant coming from the exhaust. I have not been able to bring the vehicle to a mechanic to diagnose the issue just yet.

I turned my car on and about 10 warning lights came on the car- drove it straight to the dealer where they told me the head gasket was leaking into cylinder 3 gave me an estimate of over 5k. Every mechanic I have called has told me how unusual it is for a car not very old and not over heating to have a blown gasket head. I was looking online and have seen how common the blown gasket head was on Honda Accord models 1. 5 from 2018-2022. There is nothing in the car no over heating no damage though could have cause it to leak unless it wasn’t properly installed which seeing how common it is might be the case. And how unusual it is According to many mechanics. The car has 115000 miles but has never had an issue and I wasn’t driving or anything when the warning lights came on.

I am filing a complaint regarding the premature head gasket failure on my 2021 Honda Accord, which failed on may 28, 2026, with only 89,000 miles on the vehicle. A head gasket is a critical engine component that should last well beyond 89,000 miles under normal driving conditions and proper maintenance. I purchased this vehicle because of Honda's reputation for reliability and longevity, and I am extremely disappointed to experience such a major engine failure at this mileage. After researching the issue, I found numerous reports from other Honda Accord owners experiencing similar head gasket failures, particularly in newer models equipped with the 1. 5l turbocharged engine. Many owners report engine misfires, coolant loss, overheating, and costly repairs at relatively low mileage. This suggests there may be a broader issue affecting these vehicles rather than normal wear and tear. My vehicle has been properly maintained, and I did not expect to face a repair of this magnitude before reaching 100,000 miles. The cost of replacing a failed head gasket is substantial and places an unfair financial burden on owners who reasonably expect Honda vehicles to provide dependable service. I respectfully request that Honda review this matter, investigate the growing number of similar complaints, and provide assistance with repair costs. I believe Honda should stand behind its products and support customers who experience premature component failures. Thank you for your attention to this complaint. I look forward to a prompt response and a fair resolution.

See all problems of the 2021 Honda Accord 🔎.

Engine began running rough and warning lights came on the dash indicating multiple issues and the engine light. Brought it to Honda and the tech diagnosed a head gasket failure. Honda recommended a head gasket repair. Car only has 137,000 miles on it.

I have owned my Honda Accord for under a year, puchased around 100k miles. My head gasket blew at 118k miles. There was no overheating of the engine or warning lights before hand, my car was idling after work and I turned it on and then I had about 5 different warning lights on. I find out that it was a cylinder 2 misfire and took it to joyce koons Honda for them to inform me of a head gasket failure and quoted me for around $7,000.

While driving the car it went in to limp mode, restricting the ability to maintain normal driving. It did this because the head gasket needs to replaced because coolant is leaking into # 3 cylinder. My wife and others were put at risk when she had to pull over in an area that was unsafe According to a summerville police officer who came to her aid and helped her get the car to a safe area.

While driving on the highway at approximately 65 mph with my child in the vehicle during rush-hour on may 21, 2026, my 2018 Honda Accord hybrid touring (105,746 miles) suddenly dropped speed, and began backfiring and stopped responding to the gas pedal. The check engine light flashed and the vehicle ran rough. I activated emergency flashers and drove slowly to the shoulder. Sunnyvale Honda (sunnyvale, CA) diagnosed coolant intrusion into one of the cylinders and head gasket failure. The vehicle had never overheated and showed no prior warning signs. All maintenance was performed at Honda dealerships per the maintenance minder schedule. The dealership performed a head gasket repair costing $7,500+ out of pocket. On the first highway drive after pickup, again with my children in the vehicle, the identical failure occurred: backfiring, complete loss of throttle response, vehicle unable to exceed 48 mph with the accelerator fully depressed. The repair did not resolve the defect. The vehicle is currently back at the dealership for further investigation. This failure created an immediate safety hazard on both occasions: sudden loss of speed on highway with no warning. Honda customer service denied goodwill assistance. I am aware of numerous similar complaints involving coolant leak and head gasket failure on 2018-2022 Accord including complaints documenting the same failure on the Accord hybrid 2. 0l engine. Nhtsa should investigate this as a potential safety-related defect affecting multiple Honda engine variants.

While driving my vehicle suddenly would not accelerate above 20 mph and warning lights all over the dash lit up (check engine, abs brake system, adaptive cruise control, vehicle stability, power steering, hill assist, and brake hold). I took it for a diagnostic, it gave a code for cylinder 3 misfire. I got a tune up the next day along with a fuel system cleaning just to be safe. After about 35 miles of driving I had the same issue 2 days after the tune up, this time no warning lights. I took it back to the shop and this time the spark plug in cylinder 4 was bad. I believe I am at the beginning of what many others have complained about with these same symptoms. This problem makes operation of my vehicle unsafe and uncertain, at any time this issue can kick in and now you are limping along at 20 mph while cars zoom all around you. While trying to get the vehicle to the shop I created traffic buildups and was almost hit multiple times due to the vehicles diminished acceleration.

I am temporarily at [xxx]. The brake light on the dash will pop up in orange while driving and the steering wheel will turn from left to right at certain times while driving. I am not too close to another vehicle. The air bag indicator light flashes at times. The driver car seat will move forward when I unlock the vehicle at times. The trunk pops open at times after having been securely shut. I have had some work done on it at lucas tire and automotive in brewton, al. I have had personal property and money stolen out of it as well as paperwork containing personal information/financial information stolen. It’s created substantial loss from me. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2016 Honda Accord 🔎.

I take my car for updates (recall) and now I am being told that the head gasket is blown and damaged the injectors the powertrain might pay for the blown head gasket but not the injectors (which were damaged due to the head gasket blowing) no coolant but the car never ran hot. Honda is trying to stick to me to pay out almost $7000. 00 which is wrong when it went to them for a recall.

Blown head gasket after multiple spark plug replacements for misfires.

The head gasket failed on my 2018 Honda Accord 2. 0t at 81,000 miles due to weak factory head bolts stretching under turbo boost, causing cooling system over-pressurization and risk of engine stalling/overheating.

- the car's automated systems randomly applies severe breaking at improper times - the cars head gasket has blown and in turn has blown the radiator and thermostat.

The head gasket was blown on highway even though the car was functioning perfectly fine and was well maintained.

The head gasket malfunctioned/ broke. It has been confirmed by the Honda dealer where I currently have my vehicle. There were no messages or symptoms prior to failure. My safety and others were put at risk because my vehicle began to turn off as I was driving up a hill with no warning. The vehicle began to decelerate.

My car has under 100k miles and has regularly been serviced throughout its life. The head gasket failed due a known design flaw.

10th gen Honda Accord has a major engine design flaw allowing coolant to pass through the gasket mixing with fuel in the cylinders causing premature head gasket repair which also puts the injectors under immense stress due to high compression. While driving my 2019 Honda Accord to the dealership for inspection. All the lights started flashing on the dash. Highlighting - critical failure detected please stop driving when safe. After a few mins the car’s infotainment system shut off no electrical activity and the car shut off mid drive. Luckily, it was in the morning and not during peak traffic congestion. Had I been going on the expressway I could’ve harmed myself, or someone else. This is highly unacceptable that a car with only 96k miles has a serious engine issue like this. I have maintained the oil changes at the required intervals, changed the fuel pump under recall, tires, brakes etc. After towing to the dealership. Diagnostics were performed and it was confirmed that the coolant was empty and radiator low. Which then prompted the dealer to perform a borescope test for the cylinders and it was found that cylinder 3 had a misfire and was leaking coolant into the cylinders causing premature wear on the gasket as well. The car is out of warranty and the service advisor said to me that they had another Honda just like mine with the same issue. This isn’t an isolated incident and many owners with the 10th gens have the same exact issue nationwide and Honda turns a blind eye and expects us to pay over 6,000 for the repair it’s a total scam! they are making money hand over fist without any recall and just scamming their customers. This is truly unacceptable and should be investigated immediately and Honda reprimanded!.

My vehicle will not drive past 20 mph,it randomly goes into limp mode with traveling ! I’ve have it tested multiple times and no one seems to know what the issue is !.