2016 Honda Civic: misfire or rough idle

Filed Nov 9, 2026 · Engine · TX

The cylinder head gasket on this 2016 Honda Civic Touring suffered an internal failure and breach, leading to progressive coolant loss, engine overheating, sudden rough idling, check engine warning lamps, and vehicle misfires while driving. The sudden loss of power and risk of engine stalling created an immediate safety hazard while operating in traffic on public roadways. The vehicle is currently held and available for inspection at an authorized dealership, where the service center confirmed a catastrophic internal head gasket breach. The failure caused extensive coolant intrusion and fluid emulsification inside the crankcase, which completely destroyed the motor's internal lubrication and subsequently starved the turbocharger bearings, causing the turbocharger to malfunction as well. This component failure matches the exact systemic defect parameters detailed under Honda Service Bulletin 26-099.

Filed Dec 4, 2024 · Electrical, Engine · OH

All light are coming in off and on in my car , keys will lock my car but when I walk away it unlocks and rolls all my windows down on its own. Had to remove key batteries for it to stop and had a diagnostic ran and it shows the body control module is misfiring and having issues. Was told there was a recall on 10th gen honda civics but you sight doesnt show it

Filed Dec 2, 2024 · Engine · IL

Driving on highway to work when check engine light came on in addition to "Emissions System Problem", "Hill Start Assist", "Power Steering Issue", etc. When scanned for codes it showed misfire codes P0300, P0301, P0302, P0303, P0304. When spark plugs and coils were changed one set showed signs of rust. The misfires persisted after changing out these parts. When taken to the dealership they stated that the powertrain warranty had been extended to 6yrs from the original date of purchase because of an oil dilution issue. My car was outside of this warranty and the dealer did not offer to help with repairs. I called Honda of America and explained the situation - they also stated that it was outside of warranty. My mechanic has recommended an engine replacement and estimates repair costs over $4000+ for a used engine. Radiator fluid had been topped off 3-4 times this year but we did not realize it was leaking into the engine. A full recall should be issued for this, it is a known issue and Honda is aware of it. The warranty extension is not enough if the issue is going to keep occurring.

Filed Nov 11, 2024 · Engine, Transmission · TX

Over a several month period the car was losing radiator fluid. I figured it was probably a stuck thermostat and the fluid was coming from the overflow. But only once did I see a minimal amount of fluid. Not near the amount that had been lost in the cooling system. Fast forward a few months and I am driving home. Top speed starts out at the speed limit of 70 and slowly slips to 65 then 60. Giving it more gas would increase the rpms but no power or forward thrust was making to the tires. It was as if, it was falling into neutral. The next morning drive to work was much worse. starting with a top speed of 65 within 10 miles on the highway the top speed went to 55 then to 45 then 35. When the top speed was 45 mph I took the first exit and made it through a stop sign on the service road. With a crawling speed of 10 mph it limped into a strip-center parking lot. Once it was stopped, pushing the gas pedal would increase rpms but no forward movement. So, I assumed a new transmission (CTV) was in my future and had it towed to a local dependable, honest, five-star reviewed auto shop. They found it misfiring and upon investigation find radiator fluid in the oil. So, they tell me the engine died and they could not even check the transmission. In the end, a used engine with 40K miles was put in it, a newer used transmission, and a new turbo (it was bad too). $14,000 + dollars is what the shop charged in June of 24 and Dec of 23. I tried to no avail to have the turbo covered under a lifetime warranty of an autobody shop that had replaced it following a road hazard claim that damaged it.

Filed Aug 8, 2022 · Engine · MA

Received recall notice on my vehicle per cylinder 2 & 3 misfiring. I brought my vehicle into service and I was told this recall did not apply to my vehicle as it was specific civics that had this problem (with my VIN on this recall) Honda then took this notice and disposed of it. I received another recall for drivability of my vehicle, still nothing done. About a year later my car was in and out of Honda due to my check engine light being illuminated. This was the trend from at least October 30, 2021 to present time. When my vehicle was brought in due to the check engine light being illuminated and the vehicle juddering, Honda replaced the solenoid purge valve as it was misfiring ($147). October 29, 2021 preformed a transmission fluid service ($159.95) and brake system fluid flush ($129.87) which I never approved of as I have never done any flush on any of my vehicles. December 10, 2021 my car was loosing power while car had only been running for less than 5 minutes, then died out in the middle of the road. Had car towed to Honda for diagnostic once again.. they performed a valve adjustment and replaced the gasket cover ($408.10). Which did not fix the problem but I was still responsible for the bill. Resulting in a “cracked engine” block per Honda’s diagnosis after all this extra work was put into my vehicle. I was giving a diagnosis of cylinders 2 and 3 being below specification (exact recall on vehicle, cylinders 2 and 2 under specification) resulting in the car needing a new engine, priced out to about $10,000 for a used engine and labor. Honda refuses to do anything about this problem.