2011 Honda Accord: Engine complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 35 owner complaints for the 2011 Honda Accord that list the engine component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11713516 (filed 01/27/2026): “I'm having symptoms of cold startup engine rattle type clatter sound for approximately 2-3 seconds and then it goes away. doesn't do that again unless the car sits for a period of time. if it's been started recently like within 1 hour or 2 hours it will startup with out making that metal rattle/cla…”
- NHTSA complaint ODI #11625340 (filed 11/14/2024): “Engine, c1 misfirers, this has occured over the past two years and has costs me thousands to fix but its not a permanat fix, it's been a bandaid to this issue. its the same issue as you all are investagating with the new models, honda did acknoledfge this issue but they said after 2014 you no longer…”
- NHTSA complaint ODI #11560847 (filed 12/19/2023): “The contact owns a 2011 honda accord. the contact stated while driving approximately 65 mph, the check engine warning light was flashing. the contact stated that the vehicle was vibrating and was losing motive power. the contact drove the vehicle back to the residence and later had the vehicle towed…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Pro
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
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