WHILE WAITING AT A LIGHT IN MY 2010 FORD FLEX THE ENGINE WAS IDLING ROUGH, AFTER THE SIGNAL TURNED GREEN THE POWER SEEMED LOW AND SLUGGISH AS I ACCELERATED. WHEN I WAS AT ABOUT 45 MPH THE ENGINE POWER RETURNED AND SEEMED MORE NORMAL, SUDDENLY WITHOUT NOTICE THE ENGINE TURNED OFF AND ALL DASH LIGHTS ILLUMINATED. I WAS ABLE TO PULL INTO A DRIVE WAY BUT WAS VERY HARD AS THERE WAS NO POWER STEERING. I…
2010 ford Flex engine problems
moderate 29 complaints filed with NHTSA · avg repair $3,100
Complaints
29
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 5 most recent
TL* THE CONTACT OWNS A 2010 FORD FLEX. WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE STALLED. NO WARNING INDICATORS WERE ILLUMINATED. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE ENGINE AIR FILTERS NEEDED TO BE CLEANED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THIS ISSUE. THE FAILURE MILEAGE WAS 52,843. THE VIN WAS UNAVAILABLE.
PISTON RINGS FAILED AT 103,000 MILES. TOTAL LOSS OF COMPRESSION AND BILLOWING WHITE SMOKE PRODUCED FROM THE EXHAUST. ALWAYS SERVICED REGULARLY.
HEATER BLOWS COOL AIR WHEN IN IDLE OR PARKED. *TR
ENGINE STALLS OUT, WHILE DRIVING THE CAR AROUND TOWN. HAS OCCURRED TWICE, SEPARATED BY A FEW WEEKS. NO WARNING, OR ENGINE TROUBLE OR INDICATOR LIGHTS PRIOR OR AFTER THE EVENT. OCCURS WHILE DRIVING A LOW TO MODERATE SPEED BOTH TIMES, ABOUT 30 MPH. CAR CAN BE RESTARTED IMMEDIATELY AFTER AND DRIVES FINE. HAVE HAD MECHANICS CHECK FUEL AND AIR SENSORS AND LINES AND FIND NO OBVIOUS DEFECTS. OTHER …
Common questions
How serious is the engine problem on the 2010 ford Flex?
It's a documented issue but not catastrophic. 29 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
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.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. 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.
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