Engine ping, detonation, preignition issues. *tr
2009 Honda Odyssey engine problems
severe 31 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Failure mileage
Complaints
31
Recalls
0
Avg fix
$3,100
3fires
When does it fail?
Of the 31 engine complaints filed for the 2009 Honda Odyssey, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners have filed 31 engine complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
No new NHTSA engine complaint has been filed on this vehicle in over 15 years — the issue may be aging out of the active population.
The failure pattern owners describe
Buyer takeaway: The 2009 Odyssey's 3.5L engine has a widespread oil consumption defect that causes fouled spark plugs, misfires, power loss, and rough running—often starting in the 65,000-mile range. Honda acknowledges the issue in a class-action settlement but limits warranty coverage and disputes whether consumption rates require repair; owners report having to add oil every 1,000–2,500 miles. Additionally, rare but catastrophic engine fires have occurred with no warning lights.
The 2009 Odyssey's 3.5L V6 engine has a documented excessive oil consumption problem affecting multiple vehicles across a wide mileage range. Owners report the engine burning 1 quart per 1,000–2,500 miles with no external leaks visible. The oil internally coats spark plugs with carbon, causing them to foul repeatedly, triggering check engine lights and engine misfires. Vehicles lose power, stumble on acceleration, vibrate heavily while idling, and stall at highway speeds. A Honda dealership's own oil consumption test confirmed 1 quart per 1,000 miles in one vehicle, yet the manufacturer classified this as "within normal parameters" and refused warranty work. Honda issued a PCM software update and warranty extension (8 years/125,000 miles) under a class-action settlement, but owners confirm these fixes do not resolve the underlying consumption. Repair costs range from $125 to over $1,100 depending on whether dealerships replace plugs, valve stem seals, or piston rings; owners describe repairs as temporary. Low oil levels pose a serious risk of engine seizure, yet the vehicles' oil warning lights often fail to illuminate until the engine is nearly dry. Separately, two owners reported catastrophic engine fires—one at rest in a parking lot, another immediately after shutdown—with flames engulfing the engine compartment and destroying the vehicles. Engine mounts (rear, front, and side) have failed prematurely at 60,000–120,000 miles, and one owner reported engine bolts disintegrating at just 3,700 miles, causing a sudden stall.
Same Honda Odyssey engine reports on nearby years: 2006 · 2007 · 2008 · 2010 · 2011
Failure modes owners describe
Excessive oil consumption with fouled spark plugs and misfires
The engine consumes oil at rates between 1 quart per 1,000–2,500 miles without visible external leaks. The internal oil consumption—suspected by owners to stem from worn piston rings or valve stem seals—deposits carbon and oil on spark plugs, causing fouling and cylinder misfires. The check engine light illuminates repeatedly; the vehicle sputters, stumbles, loses power, and idles roughly. Honda's own oil consumption test confirmed rates of 1 quart per 1,000 miles in at least one case, and the manufacturer declared the rate 'within normal parameters,' refusing warranty repair.
When: 65,000–150,000 miles; earliest reported instance at 33,599 miles
Symptoms owners cite: Check engine light illumination; Engine sputtering and stumbling; Loss of power under load; Rough idle and excessive vibration; Fouled spark plugs (oil and carbon coating); Misfire diagnostic codes (P3400, P3497); Low oil pressure warning light; Burning oil smell in cabin; Catalytic converter and O2 sensor damage (secondary)
Codes mentioned: P3400, P3497, Cylinder misfire codes
Repairs/costs cited: Honda dealerships performed PCM software updates, spark plug replacement ($125–$619 for labor and parts), and in some cases piston ring replacement ($1,100+). Independent mechanics replaced valve stem seals; repairs are described as temporary fixes by owners.
Recalls/TSBs owners mention: Honda issued Service Bulletin WE-A13-080 for PCM software update and spark plug replacement. Extended engine warranty to 8 years or 125,000 miles whichever comes first (class-action settlement). This remedy does not resolve the underlying oil consumption. Honda refused valve stem seal replacement under goodwill citing lack of dealership service history. One owner was denied coverage three months after the 8-year warranty expired.
Engine fire—spontaneous combustion
In at least two separate incidents, the vehicle's engine caught fire while parked or immediately after shutdown, with no prior warning lights or service history indicating imminent failure. In one case, black smoke billowed from the engine followed by flames while the vehicle was parked at a store 15–20 minutes after a short drive. In another, the alarm sounded immediately after shutdown and the engine was engulfed in flames the moment the alarm was disarmed. Both vehicles were destroyed. One had just passed a state emissions test two days prior and had had a fuel pump replaced under recall.
When: Approximately 102,000 miles and unknown mileage (parked/post-shutdown)
Symptoms owners cite: Black smoke from engine compartment; Flames in engine compartment; No prior check engine light or diagnostic warning; Occurs at rest or immediately after shutdown
Repairs/costs cited: Vehicles totaled on scene; engine compartment destroyed. No root cause investigation completed by owners due to insurance or inability to inspect.
Engine mount failure—aluminum attachment shearing
Rear engine mount aluminum attachment sheared at approximately 120,000 miles on a well-maintained family vehicle with no collision or abuse history. The protective boot tore, allowing the mount to fail. Owner self-diagnosed the failure upon DIY replacement. Honda parts cost $650; dealer refused to remedy the situation and stated 'engine mounts break all the time,' despite the owner's engineering background indicating the part was undersized for the load.
When: Approximately 120,000 miles
Symptoms owners cite: Engine rattling or movement; Clunking on gear shifts and start/stop (per separate complaint #24)
Repairs/costs cited: OEM replacement part cost $650; owner purchased and self-replaced. Part appeared to fail by design overload rather than fatigue or defect.
Front and side engine mount failure
Front and side engine mounts failed before 60,000 miles on a vehicle operated with regular light use and no accidents. Engine clunked when shifting into gear and during starting and stopping.
When: Less than 60,000 miles
Symptoms owners cite: Clunking noise when shifting into gear; Clunking during start and stop
Serpentine belt fracture
Serpentine belt fractured without warning on two separate occasions at 96,852 miles, causing the engine to stall at highway speed (55 mph). The vehicle was towed to the dealer twice; technician diagnosed the belt required replacement on the second visit but the repair was not completed.
When: 96,852 miles
Symptoms owners cite: Sudden engine stall without warning; Occurs at highway speed (55 mph)
Repairs/costs cited: Serpentine belt replacement recommended by dealer technician; repair not completed by owner.
Engine bolt disintegration
At very low mileage (3,700 miles), engine bolts disintegrated causing the vehicle to stall without warning at 40 mph. The front of the engine had to be replaced. Dealer performed the repair; manufacturer refused assistance.
When: 3,700 miles
Symptoms owners cite: Vehicle stalled without warning at 40 mph
Repairs/costs cited: Front of engine replaced by dealer.
Recalls/TSBs owners mention: Manufacturer refused assistance with repair.
Synthesized from 31 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 4 most recent
Honda odyssey oil consumption-I have a 2009 odyssey that consumes oil. Roughly, every 1,000 miles, I am adding 1 to 2 quarts of oil every 3 to 4 weeks. No spots on the ground. Engine is consuming oil. Have read that this is a known problem with Honda.
Check engine light or check oil light warning lights go on. When dealer immediately checks oil upon arriving at dealership, dipstick shows no oil. This has occurred 3 times since 10/09. *ln
Tl* the contact owns a 2009 Honda odyssey. The contact stated that while driving at approximately 55 MPH, the serpentine belt fractured and the engine stalled without warning. The failure occurred on two occasions. The vehicle was towed to the dealer on two occasions. The technician diagnosed on the second occasion that the serpentine belt needed to be replaced. The vehicle was not repaired. The…
Had engine trouble with your 2009 Honda Odyssey?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2009 Honda Odyssey?
It's a meaningful issue. 31 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Across the 27 complaints that reported odometer mileage, most engine failures cluster between 33,599 and 129,000 miles, with the median around 96,852. A quarter of owners report trouble before 33,599; a quarter make it past 129,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2009/Honda/Odyssey.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.