2018 Honda Accord · symptom sheet
Engine failure, knocking or rod bearing
- 167owner reports
- 95,000median miles
- $4,600median quote
- 1involved a crash
Newest report Sep 18, 2026 · checked Oct 2, 2026
581 of the 1,883 complaints on this car are about the engine. 167 of those describe engine failure.
Tick what matches of 167 reports
Engine failure on other Accord years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2014, 2015, 2016, 2017, 2020, 2021, 2022, 2023, 2024, 2025, 2026.
What this problem usually is
These are the reports nobody wants to file. The engine started knocking or ticking, the oil light came on, and then it seized or had to be replaced. Some owners had the replacement covered under warranty or an extension, and plenty were told they'd pay. Several narrower sheets split this group into knocking, seized engines and rod bearing failure.
What got replaced
Owners who name the part that was replaced mention the engine (106 reports) and the turbo (31 reports).
Recalls and investigations
No recall on the engine covers the 2018 model year as of Oct 2, 2026.
NHTSA investigations into the engine on the Accord
Honda high engine speed. Closed may 4, 1987.
None of these investigations covers the 2018 model year.
What owners paid
58 of the 167 reports quote a price. Each dot is one quote. The middle half runs $2,500 to $6,100.
When it happens
The middle half of failures fell between 75,500 and 116,000 miles, from the 80 reports that gave a mileage.
What owners wrote
“All warning lights came on whilst driving. Scheduled a diagnostic at the dealership. Dealership confirmed the head gasket had blown due to the design flaw of the coolant pathway between cylinder #2 and #3. This is a common problem with this engine. Vehicle is out of warranty. Now faced with a big repair bill.”
Filed Aug 16, 2026
“The head gasket on my car blew before 150,000 miles. I had my car repeatedly serviced to include the recall for the fuel tank. I had to replace fuel injectors in a head gasket on this vehicle.”
Filed Jul 15, 2025 · 150,000 miles
“Head Gasket Leak at 75,000 miles, eventual blown head gasket due to lack of symptoms beforehand”
Filed Mar 31, 2025 · 75,000 miles
“Blown head gasket with low mileage. No warning or symptoms before issue occurred. Car cut off on highway.”
Filed Jan 6, 2025 · 98,868 miles
Should you keep driving it?
This page can't tell you that. 1 of 167 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found
Other problems on this car
- Engine overheats or leaks coolant 349 reports
- Check engine light or misfire 282 reports
- Brakes grind, pulse or wear early 255 reports
- Engine stalls or loses power while driving 250 reports
- Brakes on its own (automatic emergency braking) 228 reports
- Fuel pump failure 155 reports
- Multiple warning lights come on at once 124 reports
- Infotainment, screen or backup camera fails 109 reports
- Adaptive cruise or lane keeping misbehaves 103 reports
- Turbo failure or loss of boost 101 reports
- Forward collision warning goes off or the camera drops out 92 reports
- Airbag warning light or recall 60 reports
- A/C blows warm or the compressor fails 55 reports
- Battery dies or the car will not start 42 reports
- Loses power when accelerating 41 reports
- Seat belt or seat problems 36 reports
- Paint peels or body rusts 28 reports
- Traction control or StabiliTrak light comes on 26 reports