Blown Head Gasket, Coolant (possibly oil) leaking into combustion chamber. Confirmed by Honda of Kenner after getting Diagnostic. Car suddenly shook and temperature of car rose, misfires occurred shortly after with a flashing check engine light
2018 Honda Accord engine complaints
Page 8 of 21: complaints 191 to 220 of 587, newest first, as owners wrote them.
My 2018 Honda experienced a catastrophic engine failure (blown head gasket) at only 30,012 miles. A head gasket is not a wear item and should not fail at such low mileage. I previously reported related symptoms during dealer service visits in July 2024 and August 2025, including signs consistent with cooling or engine performance issues, prior to the complete failure. The vehicle has been properly maintained, has not been abused or modified, and shows no signs of neglect. Honda has denied goodwill assistance solely due to vehicle age, despite the extremely low mileage and premature nature of the failure. This appears to be a durability defect resulting in premature engine failure well below expected service life.
My car is having the head gasket issue which caused an issue while driving.
My 2018 Honda Accord Touring with a 1.5L turbocharged engine began experiencing intermittent warning lights and error messages starting around 28,000 miles. I reported these issues to a Honda dealership on some visits however in most cases, the warnings were appearing and disappearing prior to my visit. However the error continued to appeared since then. At approximately 55,000 miles, multiple warning lights and error codes reappeared consistently. I took the vehicle to a Honda dealership for diagnosis and was informed that the issue may involve internal engine damage and that a full engine teardown would be required to determine the cause, at an estimated cost of approximately $2,000, before any actual repair could be identified. Seeking a second opinion, I took the vehicle to a different service location and completed a full tune-up at 63,000 including all standard maintenance expected at that mileage. Less than one week after the tune-up, the same warning lights and error codes returned. I took my car back to the same place where I had the tune-up completed and the same error codes appeared indicating the issue was not related to routine maintenance. I began to research online some common issues with my car, I became aware of a class action lawsuit (Bissell v. American Honda Motor Co., Inc.) describing a known defect in Honda 1.5L turbocharged engines where coolant leaks internally near the cylinder head, causing engine misfires, efficiency warnings, and internal engine damage. The symptoms described in the lawsuit closely match the ongoing issues with my vehicle. The repeated warning lights and potential for engine failure raise safety concerns. The issue has been reproducible and unresolved despite inspection and maintenance.
Head gasket blown at 75500 miles. This appears to be an issue with the 1.5T engine in these cars, as reported several times and at issue in a class action lawsuit Bissell v. Honda.
My 2018 Honda accord had coolant leaking in cylinder 3. Which caused the head gasket to blow. My car stopped on me in the middle of the hwy. I took my car to a shop down here to get fixed he couldn’t get it to run. All dashboard lights are on.
My wife was driving on a highway while taking our grandchildren to day care. The vehicle lost power causing her try ti pull to the side of a main highway. All of the check engine lights went on. We brought the vehicle to Honda and the dealership said they found coolant in the combustion chamber. It needs a head gasket, at a cost of $4800.00. The car has 76,000 miles on it. We understand that there is currently a class action lawsuit for Honda Accords of this year and make. Kindly advise us as to what we can do as this is causing us extreme stress and financial hardship. We need help. Thank you for your assistance. Sincerely, [XXX] and [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Emissions and engine light turned on which caused enginue to lose power and stall. Took car to dealership for diagnosis, and two codes related to failed fuel injectors and failed turbocharger. Tech said it is a known failure with this vehicle model, especially with the Honda turbo engine, so much so the warranty was increased from 100,000 miles to 150,000. Unfortunately my car was 15,000 miles over warranty and will be a costly bill. Online research yielded that tech was right, it is a known failure issue with this model but I missed the warranty extension. If this is a known issue by the manufacturer, should this not he a recall issue?
As I was driving myself and child on the interstate 65 mph the vehicle all of a sudden dropped speed and would not accelerate. I drifted the car off the interstate off ramp and pulled into a store parking lot. Luckily, we did not cause an accident or hit anything or anyone. All the lights on car's dashboard blinking some examples are EPS, VSA, Malfunction lamp, Breaking system, check engine light, etc. My car did not show that it was running hot, was not smoking, however would not accelerate. The car had a slight rattle, running bad, shaking slightly; all in all, not working appropriately. No earlier indication that something was wrong just came all of a sudden, no warning at all. Car was brought to Billy Navarre in Lake Charles, LA, where they concluded that head gasket was blown. I had to come out of pocket to fix the head gasket and all of the other problems that it caused. Car milage 84,097, bought brand new in 2018. This is a major safety issue for the public! Multiple people have this same problem. I have documentation on all the work the dealership completed. And I have filed a report to Honda.
I have a 2018 Honda Accord Sport 1.5 The issue started after getting my fuel pump replaced as part of the recall. While driving, all of the dashboard lights came on. Warning messages kept flashing on the dash. This car was driving perfectly fine before the fuel pump was replaced. When the codes are cleared, the car drives perfectly fine. The dashboard lights will periodically turn off but ultimately come back on and as a result, the car goes into limp mode. Coils, sparkplugs, breakers have been switched out and oil levels have been checked. When the car is scanned, the codes are reading a misfire with the coils but, the coils that are allegedly misfiring were JUST replaced. The car jerks while attempting to accelerate, and after a few miles, it goes into limp mode. I have tried every type of repair that has been suggested to me by the mechanic but the issues persist.
Fuel pump is bad causing the car not to start.
Hi, to whom it may concern my dashboard lights have been on for months now and I’ve taken it to the dealership I purchased my car from and it comes back that it’s the turbo that needs replacing. The pricing of that is ridiculous and I’m currently not the ONLY one with this issue ! It’s an ALL AROUND THE WORLD thing! I’m not sure about anybody else but I don’t have that type of money plus while paying other important bills ! There should be a recall against the turbo replacement as well! And just what if I was to get the turbo replacement and then the lights come back on, because I’ve seen multiple people saying the replacement didn’t help with the lights and still have gotten other things done and the lights only off for a couple days ! Indeed of answers because this is ridiculous!
Blown head gasket
The head gasket of my 2018 Honda Accord, 1.5L turbo engine blew, allowing coolant to leak and pool into cylinder 3 of the engine. The engine was inspected by a Honda dealership and confirmed the defect/failure. I don’t have the failed gasket, but do have images of the coolant running into the cylinder from the inspection. My family’s safety was put at risk as due to this failure the engine misfired and would no longer accelerate on two different instances. Once in a local 55 mph road where the car would get above 30 mph. The second was when my wife was driving in a 70 mph turnpike when the misfire happened. There were no warning lamps or indicators of the failure. The symptoms were duffle, which included worsening engine performance, gas mileage, rough idling, and jerking while driving due to poor combustion in the bad cylinder. They first appeared around 87,000 - 88,000 miles (within this last year - 2025).
Vehicle: 2018 Honda Accord Sport 1.5T, VIN [XXX] , 108,584 m, registered Indiana. Vehicle suffered from well-known 1.5L turbo oil dilution defect (TSB 19-091) since 5/24/21, 35k m, towed Honda dealership check engine light on, loss acceleration. Dealership diagnosed misfires cylinders 2 &3 caused by faulty fuel injectors from gasoline contaminating engine oil, 4 injectors,related parts $1,495.53. Defect persisted, ongoing issues: VTEC solenoid failure, spool valve replacement, turbo full assembly replacement, multiple spark plug replacements over four+ years, due to same oil dilution causing fouling/misfires. $3,855+ spent related repairs, due to defect. 6/14/25 & 6/21 car decelerated, 9 warning lights illuminated. Examined, diagnostics clear. 10/29/25 engine light, loss of acceleration, almost resulted in highway crash. Towed Victory Honda Highland, IN 11/10, sat 40+ days. No communication. Eventually diagnosed blown head gasket, leaking injectors. No loaner provided despite request. Corporate requested teardown 11/25 wasn’t done. Manager demanded deposit before teardown. American Honda denied goodwill, refused escalation 3xs, assigned same unresponsive manager, but out till New Year. Broke 48-hour callback promise 12/17. Upon request, Honda towed Team Honda Merrillville, IN no repairs done at Victory. Since transported Team Honda nothing repaired, waiting teardown confirmation, leaving my family without transportation 2+ months. Defect documented TSB 19-091, ongoing class-action suit 1:22-cv-02662, N.D. Illinois 1,200+ the federal safety agency complaints identical failures. ‘18 Honda Accord Sp 1,200 + documented similar complaints, yet Victory Honda, Team Honda, & American Honda not addressed issue. Lack of communication, refusal to address known safety issue. Should investigation/mandatory recall/coverage. Safety Risk: Sudden loss of power on highway = crash hazard. Spent $3,855+; car undrivable, family without vehicle to/from work. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S
Full pump engine
My fiance has a 2018 Honda Accord Sport Touring, this past Sunday he was giving me a ride and about 5 min of driving , after stopping for a red light , the light turned green he pushed the pedal and the car starting moving then all of a sudden warning lights were flashing , the engine light , remote not in car, oil light, air bag , low tire, etc. there was alot at the same time when the warning lights came on as he pushed the gas pedal the car stopped accelerating, and he said he had no power in the pedal ,there was heavy traffic, a car could of rear ended us but he was able to put his hazards on and coast around the corner before the car stopped. He shut the car off and back on and it drove like normal again. I was scared of course and just wanted to go home. When we got home he remembered he still had his fathers Obd scanner tool so he plugged it in the car and it showed no error codes. So that was really strange. He went to the store down the street the next day, but other then that he drives his work van and I have my own car. I was reading newsbreak and seen that honda recalled only hybrid and newer years and thought thats odd I should let someone know this happen to his 2018 accord , because Im sure it has to happen to others. We didnt take it in or call the police , but this clearly could of caused a crash had he not remained calm and put his flashers, everything happened so fast. Im sure he would let you inspect it, he works during the morning. I have no clue why it did that and neither does he. Thank you for your time.
Head gasket issues and turbocharger issues
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.
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.
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
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
All my warning lights keep coming on in dashboard and my car isn’t accelerating in cold weather after sitting overnight
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.
The contact owns a 2018 Honda Accord. The contact stated that while driving at various speeds and depressing the accelerator pedal, the vehicle failed to respond as intended. The contact stated that the engine was revving, and the tachometer was showing an elevated RPM level before the vehicle slowly responded. The contact stated that there were several unknown warning lights illuminated on the instrument panel. Additionally, the check engine, traction control, and brake warning lights illuminated and remained illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the turbocharger needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 143,000.
The contact owns a 2018 Honda Accord. The contact stated that while depressing the accelerator pedal from a complete stop, the vehicle lunged forward. The vehicle was taken to the dealer, where it was diagnosed that the fuel injectors and spark plugs had failed and needed to be replaced. The contact stated that the failure recurred approximately 5 years later while accelerating from a complete stop at a stoplight, and the vehicle failed to accelerate at the intended speed. The vehicle was towed to the dealer, where it was diagnosed that the transmission sensor had failed. The vehicle was repaired; however, the failure recurred while attempting to leave a parking lot. The contact stated that the failure remained persistent and was recurring more frequently. The vehicle was taken to another dealer, Carson Honda(1435 E 223rd St, Carson, CA 90745), who performed a dual-clutch transmission check, but no failure was found. Additionally, the dealer diagnosed that there was excessive misfiring on cylinder #3 due to a head gasket leak. The dealer determined that the head gasket kit, the spark plugs, and the fuel injectors needed to be replaced, and an oil change needed to be performed. The vehicle was not repaired. The contact stated that the vehicle had become inoperable. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was unknown.
I am submitting this complaint to report a potential safety-related defect in the 1.5L turbocharged engine used in the 2018 Honda Accord. My vehicle experienced a sudden and severe head gasket failure that appears to be related to a known design flaw affecting a significant number of Honda 1.5T engines. Many owners are reporting the same. Vehicle Information: Owner: [XXX] VIN: [XXX] Mileage at failure: 127,000 miles Location: [XXX] Phone: [XXX] or [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
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.
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
After having fuel pump replaced by recall at random times dashboard will light up with all system lights, car will go into limp mode and loose power for a few seconds and then I am able to resume driving. Extremely scary as there is no warning. This has happened both on the freeway at high rates of speed and on neighborhood roadways. Safety has been compromised several times and Honda dealer is not able to reproduce the issue, retrieve any warning codes or offer any assistance. This has randomly been occurring for several months. When not having this exact issue car runs with no other issues.
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