2019 Honda Odyssey Engine Problems

[Incident Description & Manufacturer's Bad Faith] On April 6, 2026, an authorized Honda dealership (McConnell Honda in Montgomery, AL) diagnosed my vehicle (2019 Honda Odyssey EX-L, 143,097 miles) with DTC P219A (Rec replacing fuel injector set and fuel feed pipe at this time), requiring a fuel injector replacement. This exact mechanical failure is documented in Honda’s official Service Bulletin 21-010. The bulletin acknowledges that defective fuel injectors can cause engine misfires, loss of motive power, and engine stalling while driving. These conditions present an immediate and severe safety hazard. Honda established a 150,000-mile warranty extension limit for this defect in TSB 21-010. My vehicle has 143,097 miles and is well within this limit. However, American Honda Corporation has arbitrarily refused to repair the vehicle. Furthermore, on April 21, 2026, the assigned Honda Case Manager left a voicemail officially denying the repair. He explicitly refused my repeated requests to provide this denial in writing. In the voicemail, he falsely stated that my vehicle at 143,000 miles is "well outside the range" for assistance, directly contradicting Honda's own written 150,000-mile bulletin. Please review the attached documents, including the official dealership diagnostic report (DTC P219A), the repair estimate, and a copy of TSB 21-010. I have also secured the audio recording of the case manager's voicemail to prove their bad faith. Honda is knowingly leaving a dangerous vehicle with a confirmed, documented fuel system defect on the road, while actively providing false information to the consumer to avoid repair costs. I strongly request the NHTSA to investigate Honda's deceptive and dangerous practice.

There is a delay in acceleration. When at stop light, stop sign, or moving forward after backing out of driveway, we are experiencing a 2-4 second delay in acceleration after putting pressure on the gas pedal. This has caused scary incidents when trying to turn left at stop lights or stop signs. When talking to Honda dealers, they have not been helpful in determining the cause of this.

While driving, the check engine light appeared and the vehicle began running rough and hesitating during acceleration. The engine experienced a noticeable loss of power, which created a dangerous situation in traffic and nearly caused an accident when attempting to accelerate with surrounding vehicles. The vehicle was taken to a Honda dealership for diagnosis. The dealership confirmed a failed fuel injector on cylinder number four and a catalyst efficiency fault code (P0420). The dealership explained that the failed injector may have caused improper fuel delivery and contributed to damage to the catalytic converter. The dealer also indicated that similar fuel injector failures are addressed in Honda Service Bulletin 21-010 for this model year. However, my vehicle was not included in the VIN range covered by the bulletin even though it is a 2019 model and uses the same fuel injector part number referenced in the bulletin. The issue was confirmed by an authorized Honda dealership and the recommended repair was replacement of the fuel injector kit and catalytic converter. Honda corporate declined to fully cover the repair costs despite the similarity to the known issue described in the service bulletin. This engine malfunction created a loss of power while driving, which could present a safety hazard in traffic.

"Emissions system problem" engine warning light has been on for quite some time. I know there is a service bulletin related to this issue, but my VIN is not covered. There are also several other warning lights that occasionally pop up, and my Honda dealer believes these are all related to the initial warning light. They mentioned that sometimes these systems start shutting down so the vehicle runs properly. Recently I received "transmission system prolem" (in conjunction with the slew of warning lights I have frequently been getting). No apparent issues until recently when I was driving on the interstate. The engine started to become very loud and when I looked at the RPMs it was very high, over 5,000 RPMs. The car wasn't shifting out of first gear at 55MPH. I immediately slowed down and got off the interstate as soon as possible. After arriving home, we unhooked the battery, re-installed, and all of the warning lights were gone. Again, the Honda dealer believes all of these issues were realted to the "emissions system problem", which is part of a service bulletin that should be covered by warranty extension. I beleive my VIN should be included, and the recent transmission system problem which happened on the interstate was very dangerous and could have ended very badly, had I not been in tune with what was happening.

The contact owns a 2019 Honda Odyssey. The contact stated that while driving at approximately 65 MPH, the vehicle unexpectedly entered LIMP Mode, and the check engine warning light started flashing. The vehicle was able to restart following the failure. The vehicle was towed to an independent mechanic, where it was diagnosed that the connecting rods had failed. The contact was informed that the connecting rods needed to be replaced, or the engine needed to be replaced. The vehicle was not repaired. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 105,000.

The 2019 Honda Odyssey experienced an engine failure while driving on the highway in the Chicago area in Illinois. The engine began knocking, then failed completely. It was towed to a local Honda dealer, where the technician noted visible metallic flecks in the oil once drained. No check engine or other warnings occurred prior to the failure.

Life-Threatening Acceleration Lag: The vehicle is experiencing severe power loss during critical driving moments, for example, while entering intersections or attempting to re-accelerate into moving traffic. When I attempt to speed up, the engine fails to respond initially, leaving the vehicle stranded in the path of cross-traffic. The engine finally engages only because I am forced to floor the accelerator pedal out of necessity, which then causes the tires to squeal when power eventually returns. Intermittent Starting Issues: The vehicle frequently fails to start smoothly on the first attempt; a known symptom associated with the fuel pump impeller deformation described in Recall 23V-858. VCM Shudder and Hesitation: I am experiencing the distinct vibration and rhythmic shudder associated with the Variable Cylinder Management system. This symptom is most prominent during deceleration or coasting; specifically, when I lift my foot off the accelerator without applying the brakes, the system triggers a noticeable shudder as it incorrectly manages cylinder engagement/deactivation. Suspected Catalytic Failure (Codes P0420/P0430): Both catalytic converters are exhibiting inefficiency codes simultaneously, which are highly atypical and occur well before the expected component lifespan. This clearly points to upstream defects. Specifically, the catalytic substrate has been poisoned by carbon and phosphorus deposits from the documented oil-burning defect and has suffered thermal damage due to the improper fuel mixtures caused by the defective high-pressure fuel pump (Recall 23V-858).

I am getting a failing fuel injector that is not covered in Hondas openTSB. I am unsure how it was determined that only VIN are covered when it is the same engine for all 18 &19s. Honda is denying work but reporting because many others are having same problem and not covered on an odyssey forum. I believe it is an issue with more than the VINs in the extension. Recommending that NYSB collect data on all odyssey and see the failures

2019 Honda Odyssey (VIN: [XXX] ) - Fuel injector failure at 51,000 miles, November 2025. Cost: $1,260. KNOWN MANUFACTURING DEFECT: Honda Service Bulletins 20-100, 21-002, 22-002 acknowledge widespread fuel injector failures in 2018-2019 Odysseys caused by debris from manufacturing process. Honda extended warranty to 10 years/150,000 miles for certain VINs. My VIN excluded despite identical failure. EVIDENCE: (1) Same symptoms/codes as covered vehicles (2) Fuel pump replaced under recall same visit - proves manufacturing defects (3) Proper maintenance with receipts (4) Dealer admitted injectors shouldn't fail at this mileage (5) Hundreds of similar complaints online HONDA DENIED COVERAGE: American Honda denied goodwill because I don't have dealership service records. This makes no sense - manufacturing debris in injectors isn't caused by where you get oil changes. SAFETY ISSUE: Sudden power loss, multiple warning lights, stalling risk while driving. REQUEST: Investigate why Honda excludes certain VINs from warranty coverage for acknowledged manufacturing defect. Require expansion of coverage and reimbursement program. Pattern of defects (fuel pump recall + injector failure at 51k miles) indicates quality control problems. Thousands of owners affected. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On November 27, 2025, my 2019 Honda Odyssey experienced a sudden and catastrophic engine failure while traveling at highway speed. The vehicle had been serviced at an authorized Honda dealership the previous day (oil change and tire rotation), and the failure occurred approximately 55 miles after that service. While driving on the interstate, the engine abruptly lost power, expelled a large quantity of engine oil onto the roadway, and then caught fire in the engine compartment. The driver managed to pull over safely and extinguish the fire. This was a significant safety hazard to the driver, passengers, and surrounding motorists. The dealership later reported that the engine suffered internal mechanical failure involving broken connecting rods, which caused extensive engine damage and oil loss. I reviewed public information and discovered that certain Honda 3.5L V6 engines from similar model years have been recalled for internal engine defects that may lead to connecting-rod issues or catastrophic engine failure. However, my vehicle’s VIN is not currently included in those recalls, despite experiencing a similar failure pattern. This incident involved: Sudden loss of engine power at highway speed Immediate oil loss onto the roadway Engine compartment fire Risk of collision or injury Given the severity of the incident and the similarities to known recalls for related engine failures, I am submitting this report to request that NHTSA review this event as part of potential broader safety concerns involving this engine family. The underlying cause should be evaluated to determine whether a defect or pattern exists that could affect additional vehicles not currently included in recall campaigns. No injuries occurred, but the incident posed a serious risk to life and traffic safety.

The engine was the component that failed. While accelerating, I first noticed a slight knocking sound. At steady speeds the noise went away, but during the same drive it became progressively more frequent until it occurred under all driving conditions. When stopped at a light to make a left turn, the vehicle shut off immediately as soon as I released the brakes. There were no warning lights, diagnostic messages, or prior symptoms before the failure. Because the vehicle lost all power in the middle of a multi-lane intersection, my family and I were stranded in the roadway for approximately 1.5 hours until a tow truck arrived. The vehicle could not be moved out of traffic. After towing, a retired mechanic who operates his own shop inspected the vehicle. He performed a brief, approximately 15-minute preliminary evaluation and reported that the engine is seized. Based on his initial observation (without engine teardown), he believes the cause may be a failed crankshaft bearing, but this has not been confirmed. No dealer or manufacturer inspection has been performed. Insurance declined involvement because mechanical failure is not covered. No police report was filed.

While driving on the interstate the engine rod blew causing the motor to blow up and sustain a hole. This was confirmed by a Honda dealership during a video inspection. Several lights on the dashboard showed up shortly before the motor expired.

Traveling from appointment to home, vehicle started to rattle from engine, could not accelerate and shut off in the middle of the roadway. We couldn’t start the engine and “emission system failure “ message appeared for the first time. Prior to the event, we did not have any issues with starting, operating the vehicle and no warning lights on the dash. Police arrived to block traffic and ordered the tow to the dealership. Honda did a diagnostic for 240.00. Results were they found metal shavings in the oil and the engine needed to be replaced. We were surprised due to the fact that we just had a full synthetic oil change within the past month and no reports of metal in the oil were reported. Honda stated that recall 23V-751 addressed this issue but our VIN was not listed for coverage. Only choice is to replace the engine assembly, quoted $9,000.00. We are just thankful this issue didn’t result in any accidents or injuries when it reduced power and unexpectedly stalled on a city road. We are 1st owners and have had all services done professionally, per the maintenance schedule. It’s a 2019 Honda Odyssey Touring with 70000 miles. No prior notice or poor performance. Honda confirmed it was an internal bearing failure. Vehicle is available for inspection, currently waiting on engine replacement to arrive. Honda did complete the recall for fuel pump replacement that was needed.

Connecting rod bearings rattling at 72000 miles on my 209 Honda Odyssey. Loss of power.

I am writing to file a formal complaint regarding a serious engine failure on my 2019 Honda Odyssey, which experienced a rod bearing failure that has rendered the vehicle inoperable. This failure occurred despite the vehicle being properly maintained and driven under normal conditions. As a result of this engine failure, my Odyssey is currently parked and unusable, yet I am still required to make ongoing auto loan payments while I attempt to find a solution to cover the cost of repairs. This issue was first detected at 63,000 miles.

I was traveling approximately 65 MPH on Interstate 75 Southbound near Cincinnati, Ohio with the flow of traffic. Cruise control was not being used at this time. I felt a sudden loss of acceleration and heard a shrieking sound. I also observed the check engine light illuminate. I immediately signaled and moved toward the right shoulder from the middle left lane. Upon entering the far right lane, the same loss of power and shriek sound happened. I took the exit ramp to Sharon Road and upon releasing the accelerator, the vehicle's engine stalled. I coasted to a stop in the far left turn lane. I personally inspected the vehicle and upon using a scope into the spark plug holes, found that the center rear cylinder shows signs that the piston collided with at least one valve, and the piston does not move with the crankshaft. However, the rear valves do move. The front center piston and valves both move. This suggests a connecting rod issue.

Car shut down for idle stop when I let foot off break the car did not start back up. Car died and I needed to restart car.

The contact owns a 2019 Honda Odyssey. The contact stated that while starting the vehicle, the contact heard a ticking sound coming from the engine compartment. There was no warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the rod bearings had failed, and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 103,000.

Nothing has happened yet, but I have been unable to get the connecting rod bearings inspected per the Honda safety recall notice. I contacted the Honda dealer in January of 2025 to have the bearings inspected, as well as to have the fuel pump replaced (also under recall). I wanted them both done at the same time. I set up an appointment for May 21st of 2025, because that date was the first mutually available date for the dealer and me. Later in the day, on May 21st, I got a call from the service department that my fuel pump was done, but they did not do the bearing inspection. I went to pick up the vehicle at the dealership only to find that the check engine light was on, so I had to leave the vehicle overnight so that the check engine light problem could be corrected. It was then that I was told that they could not do the connecting rod bearing inspection because the procedure requires a "special tool" and Honda had to send it to them. I find this strange because of the number of months that went by, from when I first contacted the dealership until the appointment date, and I thought that they would have been better prepared to complete the work. I was also informed by Honda that all of the parts necessary to do the bearing inspection were available. I received that notification on September 4th of 2024. I also find it strange that, out of nearly 250,000 affected vehicles, I am the first to request this service at this dealership. I was not told how long it would be until the dealership service department would receive the tool. In the recall notice from Honda, a connecting rod failure could potentially result in "...a fire, crash, or injury". That's the risk. I was told by Honda to continue driving the vehicle if I was not having any symptoms of failure. I have had no indications, but I would like to have this recall taken care of as soon as possible.

This vehicle is horrible and should be bought back by Honda. They knowingly put this bad engine in the 2018-2019 year models for the Odyssey. The transmission grinds. The read door opens. The engine shuts off while driving at high rates of speed. You then have to pull to the side of the road and turn the ignition off, open the door, and restart the vehicle. I have complained to Honda for a buy back and they flat out said NO! Please help.