Last updated: 2026-10-10
Honda Accord Engine Problems
Head gasket failure on the 1.5-liter turbo is the most common Honda Accord engine problem, with coolant in the cylinders and sudden power loss.
- Owner complaints
- 423
- Share of all complaints
- 12%
- Crash / fire / injury reports
- 4 / 3 / 1
- Related recalls
- 0
Accord engine complaints by model year
The 2018 model year stands far apart, with 270 engine complaints and the highest rate per vehicle sold, plus the most crash and fire reports. The 2019 year follows with 77, and 2020 has 31. Counts then fall steadily, but head gasket reports still appear on 2021 and 2022 cars, including hybrids and the 2.0 turbo. The 2023 through 2026 years show very few complaints, though those cars have had far less time on the road to collect them. Low numbers there do not prove the engines are sound.
- 2018270 · 9.3/10k sold
- 201977 · 2.9/10k sold
- 202031 · 1.6/10k sold
- 202116 · 0.8/10k sold
- 202214 · 0.9/10k sold
- 20237 · 0.4/10k sold
- 20247 · 0.4/10k sold
- 20251 · 0.1/10k sold
Owner complaints filed with NHTSA under engine, engine and engine cooling. Newer model years have had less time to collect complaints.
What goes wrong
Head gasket failure is the main engine complaint on the Accord, mostly on the 1.5-liter turbo. Owners describe coolant leaking into a cylinder, then a misfire, a flashing check engine light, and limp mode. Nearly every warning light on the dash comes on at once. Dealers sometimes find no stored codes at first, and spark plugs and coils replaced as a guess often fix nothing. Failed fuel injectors, fuel pumps, and turbochargers fill out most of the remaining reports.
The risk is real because the power loss comes without warning. One owner described dropping from 70 mph to 20 mph in seconds on an interstate. Reports include crashes, including a fuel pump failure that killed the engine on an express lane, and fires in the engine compartment. A 2024 hybrid jerked, threw warning lights, and then burned under the hood. Engine complaints make up 12% of all complaints for the model.
Symptoms owners report
Head gasket coolant leak
Coolant leaks into a cylinder. Owners report coolant loss, white smoke, overheating, a temperature warning, and a misfire. The car may shake on cold starts or idle rough. A dealer diagnosis then confirms the gasket.
Limp mode with every warning light
The car suddenly loses power, often at highway speed, and the dash lights up with engine, braking, steering, and driver-assist warnings. Some cars will not go past 20 mph. Dealers sometimes find no stored codes.
Fuel injector and fuel pump failure
Failed injectors cause rough idle, misfires, and limp mode, and one owner reported two sets in about a year and a half. A failed fuel pump can stall the engine with no warning lamp beforehand.
Gasoline in the engine oil
Some 2018 owners report a strong gas smell on the dipstick and inside the cabin, especially with the heater or defroster on. One said gas was back in the oil 100 miles after an oil change.
Hybrid shudder and stutter
On 2024 hybrids, the car shakes and stumbles when the gas engine starts at idle or low speed, sometimes as early as 1,100 miles. Dealers often find no fault codes. Repeated injector replacements are reported.
Turbo and timing chain failures
A few reports describe an early turbocharger failure, including one after a head gasket repair. One 2021 report cites a stretched timing chain on the 1.5-liter turbo.
When the problems start
Owners place many head gasket failures between about 70,000 and 116,000 miles. Specific reports include 68,425, 78,731, 94,000, and 95,000 miles, often with on-schedule maintenance. Some cars fail earlier, such as a head gasket case at 59k miles and a misfire at 37,000 miles. Injector failures show up around 59,000 and 78,000 miles in one car, and fuel in the oil was reported at 47,000 miles.
Repairs and recalls
Owners report head gasket quotes from about $3,700 to nearly $6,000, with the higher one including valve damage from coolant in the engine. Some cars needed injectors replaced in the same visit. Replacing spark plugs and coils first often did not help. Some owners say Honda declined to cover the repair, while one injector job was covered by an extended warranty. Federal recall records list no recalls in this engine area for the model.
Checking a used Accord for engine problems
- Ask for service records showing any head gasket, injector, or fuel pump repair, and who paid for it.
- Start the engine cold and watch for shaking, rough idle, or a check engine light in the first minute.
- Check the coolant reservoir level and look for white smoke or a sweet coolant smell from the exhaust.
- Pull the dipstick and smell the oil for gasoline. Skip the car if the odor is strong.
- Test drive on a highway on-ramp with firm acceleration and watch for hesitation, misfires, or limp mode.
- Have a mechanic scan for stored and pending codes and run a cooling system pressure test before you buy.
A VIN check shows whether the car you're looking at had its recall work done, plus accident and title history.
Honda Accord Engine Problems: common questions
- Which Honda Accord years have the most engine problems?
- The 2018 model year has the most by far, with 270 engine complaints. The 2019 year has 77 and 2020 has 31. Later years have far fewer, but newer cars have had less time to collect complaints, so a low count does not clear them.
- Is it safe to drive an Accord with a head gasket problem?
- Owners say no. Failures often bring sudden power loss at highway speed, and some cars overheat or stall in traffic. Reports include crashes and engine fires. If you see coolant loss, misfires, or a flashing check engine light, stop driving and get it diagnosed.
- Is there a recall for Honda Accord engine problems?
- Federal recall records list no recalls in this engine area for the Accord. Owners say Honda has declined to pay for some head gasket repairs. Ask a dealer to run the VIN for open recalls and any extended warranty coverage before you pay.
- How much does an Accord head gasket repair cost?
- Owner reports range from about $3,700 to nearly $6,000. The higher quote included valve damage from coolant in the engine. Costs rise when injectors, a turbo, or other parts fail in the same visit. Independent data puts overall annual repair cost for the model at about $400.
- Do hybrid Accords have engine problems too?
- Yes. Owner complaints include head gasket failures on hybrids, one at about 93,500 miles and one at 78,731 miles. Some 2024 hybrids shake and stutter when the gas engine starts, and one burned under the hood. Complaint counts for hybrids are small.
Other Honda Accord problems
More on the Honda Accord
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