2020 Honda Accord: engine overheating

Filed Nov 5, 2026 · Engine · 112,000 miles · TN

The contact owns a 2020 Honda Accord. The contact stated that after coming to a stop, the vehicle experienced a loss of motive power, accompanied by multiple warning lights illuminating on the instrument cluster and an abnormal coolant odor entering the cabin. The vehicle was towed to an independent mechanic, where an inspection determined that the head gasket failed. The vehicle was towed to the dealer, where diagnostic testing determined that the engine and head gasket required replacement. The dealer informed the contact that coolant leaked into the engine, causing damage to the timing chain guides and timing chain tensioner. The manufacturer was notified of the failure. The contact associated the failure with Technical Service Bulletin: 26-003. The failure mileage was 112,000.

Filed Jun 6, 2026 · Engine · AL

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.

Filed May 12, 2026 · Engine · MD

1. What component or system failed or malfunctioned, and is it available for inspection upon request? The suspected failed components involve the 1.5L engine system and head gasket on my 2020 Honda Accord. The vehicle experienced frequent overheating along with repeated check engine light activation. Multiple mechanics, including Heritage Honda Parkville, indicated that head gasket failure is a common issue with this engine type. The vehicle remains available for inspection upon request. 2. How was your safety or the safety of others put at risk? My safety was put at risk due to the vehicle frequently overheating while driving. An overheating engine can lead to sudden vehicle breakdown, engine failure, loss of power, or being stranded unexpectedly in traffic or unsafe locations. The recurring check engine light and unresolved engine concerns created uncertainty regarding the reliability and safe operation of the vehicle during daily commuting and long-distance travel. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. The concern was initially discussed by technician [XXX] at Heritage Honda Parkville during my service visit on March 19, 2026. The technician advised that the “most common issue” with these engines along with my vehicle is head gasket failure. Additionally, multiple independent reputable mechanics later echoed the same concern, stating they have seen numerous Honda Accord vehicles with the 1.5L turbo engine require head gasket replacement and, in many cases, full engine replacement. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle was inspected by Heritage Honda Parkville service personnel and has also been evaluated by multiple independent mechanics. The issue has additionally been reported to American Honda Corporate under Case Number XXX. The vehicle has not been inspected by police or insurance representatives. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO

Filed Mar 10, 2026 · Transmission · CT

2020 Honda Accord Sport 1.5. Routine maintenance always done on time. At 108K turn my car on after a routine 45 minute drive an hour or so previous and all warning lights come on. TPMS, Brake System Problem, road dept system, emissions system. Dealer reports Head Gasket needs replaced and 3rd cylinder misfire, coolant leak etc. Quoted $5K to repair. Only 108K miles. Honda isn’t what it used to be. Quick search reveals the 10th Gen accords and civics suffer from early failure of this product routinely. Surely a known defect worthy of recall.

Filed Jan 16, 2026 · Engine · TX

Honda accords have a 1.5 L engine, which all have an issue with the head gaskets either overheating or mixing coolant into the cylinders. They’re all doing it eventually because there is a design flaw Honda doesn’t want to honor it and the car will just stop on you on the freeway because coolant touches the spark plugs. Honda is denying the issue when there’s a whole Facebook page and Internet, page of people saying the same thing they’re quoting and unreasonable amount to fix it almost the cost of the car. It is a very dangerous safety issue and eventually someone could die and needs to make a recall immediately before that happens. Most shops don’t even want to touch the car because it’s a safety issue. If we can get this past ASAP for anybody who has that car or anybody that’s gonna buy that car the safety for them in their family.

Filed Oct 13, 2025 · Engine · 85,741 miles · CA

Was driving on the freeway approximately 70 mph on saturday October 4th, When car goes into limp mode and throws a engine light on, leaving me stranded on the freeway. Another occurrence one week later on Saturday October 11th when car went into limp mode again driving around 35 mph in the city. Both cases I turned the car off and on and returned back to normal, come to find out with the dealer it is a blown head gasket and their is coolant leaking into cylinder 3. A BLOWN HEADGASKET!!!!! Everyone is having these problems

Filed Aug 15, 2025 · Engine · OK

When I turned my car on after work every warning light on the dashboard was on. A few of the warning messages read: Collision Mitigation Braking System Problem, Adaptive Cruise Control System Problem, Hill Start Assist Problem, Electric Power Steering System Problem. I first took it to Oreilly's to have the diagnostics ran. They told me the ignition coils needed to be replaces. We replaced the ignition coils and the spark plugs. The lights stayed off for about 3-4 days and then the same thing happened again. I took it to the dealership to be checked out and they told me that the head gasket had failed and coolant was leaking into the cylinder and causing the engine to overheat.

Filed Apr 18, 2025 · Engine · CT

•Alleged Defect:
The defect is described as the engines' inability to handle the increased heat and compression of a turbocharger, causing coolant leakage and damage to the engine's head gasket.