2009 Honda Odyssey Power Train

Honda installed a VCM (Variable Cylinder Management) in this engine which shuts down the back three cylinders to save fuel when the car warms up. You’ll know when it kicks in when you see ECO on your dash. When the cylinders shut down it starts an abnormal wear and tear on those cylinders. High oil consumption, fouled plugs, the need to repair the back three cylinders and misfiring of the engine are some of the problems. Honda did repair some vehicles if they experienced rough running and misfiring on those cylinders because they knew the issue was the VCM. However, when my 2009 Honda Odyssey started having those problems in 2024 they wouldn’t fix the problem and stated it was too late to fix the engine. The timeline, according to Honda, had passed to repair the damaged engine. I never received a recall for this known safety issue. The engine would cut out and the engine light would come on and it sputtered down the road on three of the six cylinders. Honda knew this was a problem but they wouldn’t fix my engine. If I had brought it in years earlier they would have fixed the known problem with the VCM but they wouldn’t deactivate the VCM to prevent it from destroying the repaired engine. The price to fix the engine was over $4200. I feel they should have repaired the engine and then deactivated the VCM by bypassing the the temperature sensor to prevent it from going into ECO MODE VCM. The safety of the occupants was at risk due to the lack of acceleration and the ability to drive the vehicle in a normal manner. I feel a safety recall is justified and the sensor should be deactivated to prevent further damage to the engine.

Transmission gears, while driving gears don't engage properly. It struggles to change gears specifically between 3rd to 4th gear. Also when parked and change to Drive makes a stump noise.

TL* THE CONTACT OWNS A 2009 HONDA ODYSSEY. THE CONTACT STATED THAT THE VEHICLE VIOLENTLY ACCELERATED WITHOUT DEPRESSING THE ACCELERATOR PEAL. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE CONTACT WAS INFORMED TO TAKE THE VEHICLE TO A DEALER. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 70,000.

TL* THE CONTACT OWNS A 2009 HONDA ODYSSEY. THE CONTACT STATED THAT THE STEERING WHEEL VIBRATED WHEN DRIVING APPROXIMATELY 20 MPH AND ABOVE. THE CONTACT ALSO STATED THAT THE VEHICLE MADE A DROWNING, LOUD NOISE AT THE SAME TIME IT VIBRATED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER SIX TIMES FOR DIAGNOSTIC TESTING. THE TORQUE CONVERTER WAS REPLACED, BUT THE REPAIRS DID NOT CORRECT THE VIBRATION. THE MANUFACTURER DID NOT AUTHORIZE ANY FUTURE REPAIRS ON THE VEHICLE. THE CONTACT STATED THAT THE FAILURE OCCURRED EVER SINCE THE VEHICLE WAS PURCHASED FROM THE DEALER ON DECEMBER 30, 2016. THE APPROXIMATE FAILURE MILEAGE WAS 60,223.

MY 2009 ODYSSEY 06/05/15 IT CURRENTLY HAS 115,000 MILES ON IT. THIS IS THE SECOND ENGINE LIGHT DEALING WITH THE TRANSMISSION. WHEN I FIRST GOT THE CAR I HAD IT ROUTINELY SERVICED AT THE DEALERSHIP. THE FIRST TIME IT WAS THE CLUTCH THIS TIME IT IS THE TORQUE CONVERTER, SO ALL INTERNAL. THE GEARS ARE FINE UNTIL 5TH OR OVERDRIVE.

TL* THE CONTACT OWNS A 2009 HONDA ODYSSEY. THE CONTACT STATED THAT WHILE DRIVING 50 MPH, THE VEHICLE VIBRATED AND JERKED ABNORMALLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS BUT THE DEALER WAS UNABLE TO DUPLICATE THE PROBLEM. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 40,000. *TR

TRANSMISSION DOWNSHIFTS ARE EXTREMELY ROUGH, ESPECIALLY FROM 45 MPH. WHEN SLOWING DOWN FROM THIS SPEED AND RE-ACCELERATING FROM 25 MPH (AS IN SLOWING FOR AN INTERSECTION OR TRAFFIC), THE DOWNSHIFTING AND UPSHIFTING ARE BOTH ROUGH - TO THE POINT OF WONDERING WHETHER THE TRANSMISSION WILL FALL OUT, OR NOT. THIS CONDITION HAS EXISTED FROM THE DAY I PURCHASED THE CAR. TOOK IT TO THE DEALER IN FEBRUARY 2010 FOR A HONDA-REQUESTED TRANSMISSION PROGRAMMING UPDATE. THAT DIDN'T DO ANYTHING. *TR

TRANSMISSION HAS ROUGH DOWNSHIFTS WHILE DECELERATING. FIRST ROUGH DOWNSHIFT OCCURS AROUND 40-45 MPH. THE SECOND ROUGH DOWNSHIFT OCCURS AROUND 25 MPH. DURING THE SECOND ROUGH DOWNSHIFT, IT FEELS AS THOUGH THE TRANSMISSION IS SHIFTING TWICE. YOU CAN ALSO HEAR A DISTINCT CLACK NOISE AND FEEL IT THROUGH THE FLOORBOARD OF THE VEHICLE. TRANSMISSION SOFTWARE UPDATED TWICE BUT PROBLEM STILL EXISTS. WE ALSO EXPERIENCE ABRUPT DECELERATION WHEN REMOVING YOUR FOOT FROM THE ACCELERATOR AROUND 30 MPH. THE VAN SLOWS DOWN ABRUPTLY AS THOUGH THE ENGINE HAS STALLED. WE FEEL THE TRANSMISSION BEHAVIOR IS A SAFETY ISSUE BECAUSE YOU DO NOT KNOW WHAT LEVEL OF ENGINE/TRANSMISSION BRAKING WILL OCCUR WHEN YOU TAKE YOUR FOOT OFF OF THE ACCELERATOR. THIS MAKES YOU FEEL UNCOMFORTABLE DRIVING THE VEHICLE. *TR

VEHICLE ABOVE 40 MPH HONDA DEALER REFUSES TO WORK ON IT ANYMORE. *TR

2009 HONDA ODYSSEY - VEHICLE HAS MODERATE VIBRATION AT AROUND 40 MPH. ROOT CAUSE ACCORDING TO HONDA IS DEFECTIVE TORQUE CONVERTER CLUTCH. HAVE NOT VERIFIED ROOT CAUSE WITH INDEPENDENT SOURCE. NO ACCIDENT REPORTED AS OF 10/26/09. *TR

VAN BROKE DOWN IN TEH MIDDLE OF BUSY HIGHWAY AND TRAFFIC. *TR