Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2007 Honda Accord owners, lightly cleaned up (personal details are redacted by NHTSA).
I became the 2nd owner of this car. My ownership had been a blessing because of the 1st owner having such a profound history of care and maintained. I randomly had a misfire in my cylinder 2. I took my car to EL Cerrito Honda in El Cerrito, Ca. After my car came from this dealership all kinds of different things begun to take place. Ive never put cameras or listening devices of any sort, nothing that was not made with my car should have been added or changed to its original make. The PCM/ECM was reset by the HDS system which has played a part in the illegal malfunctions of its systems. I have been robbed, Followed and watched from inside my car which i HAVE NEVER given anyone consent to have access to my private life. …
Car revs up at a stop sign, red light, heavy traffic, recently when making right turn. While in heavy traffic, stop and go barely moving, car stopped with foot on brake, traffic not moving, car revved up extremely high, the harder I stepped on the brake the higher it revved up, as cars started to move I took my foot off the brake, car jerked forward fast and I hit another car. No injuries, no major damage. Have taken car twice to mechanic, can't find anything. Called Honda dealer same day of incident and brought in the car the following morning for diagnostic test, received phone call some hours later and told they can't find anything wrong. There have been no warning lamps, and it happens unexpectedly. It's happened before but very low and you can drive for months with nothing happening. I've been driving all year but this last time was different and happened 7/8 times. …
The contact owns a 2007 Honda Accord. The contact stated while driving 40 MPH, there was a misfire coming from the engine with the check engine warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the spark plug in cylinder #5 had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The vehicle was taken back to an independent mechanic but was not diagnosed or repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 89,000.
Electrical component malfunctioning Knock Sensor: code error: p0325 I noticed my check engine light had came on but wasn't on for long and had turned off on the dash. A few weeks later the check engine light reappeared and did not go back off. Upon this happening I noticed a major difference in my vehicle performance. The fuel consumption had significantly increased, I recognized these shake like vibrations when sitting in park or at a complete stop. A "knocking noise" I would hear coming from the engine, as well as rough idling almost as if there was a "stalling/hesitant" idling that sounded very off. Adding a very noticeable reduced power from the engine that was not there when the check engine light was not on. This has been a confirmed malfunction and should be replaced due to the importance the knock sensor provides to the engine of this vehicle. …
Tl* the contact owns a 2007 Honda Accord. The contact noticed smoke emerging from under the hood of the vehicle and the check engine warning indicator illuminated. The contact added power steering fluid to the reservoir. The vehicle was taken to an independent mechanic who stated that power steering fluid was leaking onto the catalytic converter, and the power steering hose needed to be replaced. The vehicle was taken to john Eagle Honda of houston (18787 northwest fwy, houston, tx 77065, [phone]) who stated that the vehicle was not included in NHTSA campaign number: 12V222000 (steering). The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was 192,867.
Spark plug in cylinder #4 was blown out while going freeway speeds, destroying the ignition coil and engine cover and denting the hood. The ejected spark plug landed in the front bumper /passenger fender igniting a fire!
Unexpected acceleration with engine stuck at full throttle.. Conditions at the time: snow on road; large snow banks at sides of road.. I had backed out of my driveway in order to turn my car around so as to point front-out.I then started to back down the driveway.the car got stuck against a pile of snow part way into the driveway (we just had a series of large snowstorms, but the night was clear).I placed the transmission in "'drive"' and attempted to exit the driveway.a wheel stated to spin (I believe it was the right front drivewheel), so I gunned the engine.the car got free, heading toward the snow bank on the side of the road opposite the driveway.I took my foot off the gas and onto the brake, applying force on the brake.the engine remained in full throttle despite my having moved my foot off the gas and onto the brake and my applying force to the brake..the car had propelled itself …
I had to replace rear suspension within first year & Honda dealer told me is very common; bad suspension on 07 hondas, but once replaced will last forever-so why not a factory defect!? Then at 3 years something in front suspension, same story. Now the vtc actuator needs replacement-rumbling noise at startup for less than a minute, which I'm finding out is the case with a lot of hondas now, old & brand new. Old hondas used to last; used to be excellent & all I've driven past 25 years. Now the Honda brand is unreliable - loyal Honda owners like me, after 25 years driving only Honda, are switching brands. Honda is not the reliable car it once was. I will never buy Honda again because of major problems I had on my 07 right from the start (I bought my 07 Honda brand new in 08) & had problems I never saw before in the past even with 15+-year old hondas.
Tl* the contact owns a 2007 Honda Accord. While driving 30 MPH, the contact noticed that the check engine indicator illuminated on the instrument panel. The contact assumed the cause of the failure was possibly the fuel cap, which was purchased at the dealer (russell & smith Honda, 2900 s loop w, houston, tx 77054). The contact had an independent technician replace the fuel cap, but the engine indicator was still illuminated. The contact drove the vehicle to a different dealer (gillman Honda, 10595 w sam houston pkwy s, houston, tx 77099) where the technician informed the contact that the cause of the failure was the catalytic converter. The contact stated that the catalytic converter was replaced in 2014. The manufacturer was not made aware of the failure. There were no recalls associated with the vehicle. The failure mileage was 142,136.
On exiting from a beltway on to a ramp and applying the brakes to slow the car, it accelerated the car and as I took my foot off the accelerator, it sped up further. I applied the brakes and the emergency brake and after going very fast over several curbs and through an intersection I was able to stop the car along side of another curb. This damaged the right fender and activated the passenger side airbag. All of the tires were flattened and the frame bent, so the car could not be repaired. The event was quite frightening and fortunately there were no cars in the road or intersection and the car stopped before hitting any structure. I was alone and not injured. I had the car inspected during the past year, since it had accelerated a few times after I removed my foot from the accelerator and applied the brakes.
Engine complaints in other Accord years
Frequently asked questions
How common are engine problems on the 2007 Honda Accord?
NHTSA has 54 complaints about the engine & cooling of the 2007 Honda Accord, 10% of the model year's 524 complaints. The component named most often is engine (4 mentions).
Is there a recall for 2007 Honda Accord engine problems?
No. NHTSA lists no engine & cooling recall for the 2007 Honda Accord, though it has 9 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2007 Honda Accord engine problems start?
Half of the complaints with a recorded mileage happened before about 70,000 miles, and 23% before 25,000 miles.
Is it dangerous?
Owners linked 6 crashes, 3 fires and 5 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.