There are 4 owner-reported fuel system complaints for the 2011 Ford Flexin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Gas tank is leaking gas while parked and running
Fuel pump failure shut down engine in seconds on the freeway and left us stranded on the freeway with highspeed traffic. Problem confirmed by the dealer. Vehicle inspected by the manufacturer. No warning, engine just lost power on the freeway.
DRIVING DOWN THE EXPRESSWAY HAD AN ENGINE SHUT DOWN WITH NO CODES OR PREVIOUS SYMPTOMS. TURNS OUT IT WAS A COMPLETE MAF SENSOR FAILURE. NO ROUGH PERFORMANCE NO CHECK ENGINE LIGHT. NO WARNING JUST A COMPLETE SHUTDOWN. THIS WITH JUST 74,000 MILES
MY 2011 FORD FLEX IS BACK AT THE DEALERSHIP AFTER THREE TURBOS BEING REPLACED ON IT'S 3.5 LITER ECOBOOST ENGINE. OUR VEHICLE WAS AT THE DELERAHIP FOR A MONTH AND WE JUST GOT IT BACK ON THURSDAY. ON SATURDAY I WAS ON THE HIGHWAY WHEN IT BEGAN SHUTTERING AND JUST DIED. I WAS LEFT POWERLESS IN THE LEFT LANE OF A FOUR LANE HIGHWAY AND HAD TO MANUVER ACROSS THREE LANES TO GET TO THE SHOULDER WITH THREE CHILDREN ON BOARD. VEHICLE WOULD NOT RESTART AND WHILE TURNING THE KEY WHITE SMOKE BILLOWING FROM UNDER THE HOOD. VERY STRONG SMELL OF ELECTRICAL BURNING. I THOUGHT IT WA GOING TO CATCH ON FIRE AND HAD THE CHILDREN GET OUT OF THE VEHICLE ON THE SIDE OF A VERY BUSY HIGHWAY. THIS IS THE THIRD TIME AT THE DEALERSHIP FOR THIS CAR WITH ENGINE PROBLEMS. PLEASE ADVISE ON WHAT COURSE OF ACTION I NEED TO TAKE SO THIS DEFECTIVE ENGINE DOES NOT CAUSE DEATH OR INJURY.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026