2010 FORD FLEX Engine Problems

While driving at 65mph, vehicle started to accelerate funny and cel came on. was getting on the freeway and the vehicle overheated and CEL light came on. I was able to safely pull over before the vehicle died. Got vehicle towed to my home and when engine oil was checked, it was discovered that there was coolant in the oil. Took to a local shop where it was determined that the water pump had failed and dumped all of the coolant into the oil pan. Estimated cost of repair with labor is $5,000. Failure mileage was ~192,000. The oil was in good standing and gold in color 12 hours prior and was only driven ~45 miles at highway speeds before the failure happened. From what I can tell, this was a catastrophic failure of the water pump bearing seal that happened almost instantaneously. This needs to be looked into, as...

My 2010 Ford Flex began inadvertently surging forward in acceleration without me making it do this exactly 3 months after I purchased the vehicle. The Ford Dealer was unable to re-produce the problem on several occasions and said my vehicle was fine. No error messages reported in the computer. This has continued to happen sporadically since ownership. I have had another Ford Dealership (as well as an independent mechanic) try and reproduce and diagnose the problem with no luck. Several weeks ago I was driving my vehicle in my residential neighborhood when all of a sudden my car surged forward with great acceleration with no warning. I had to swerve into a driveway and cut the vehicle off to get the vehicle under control. I am 82 and have a heart condition. This safety issue is critical as someone could get hurt or killed. Ford has several complaints of this...

TL* THE CONTACT OWNS A 2010 FORD FLEX. THE CONTACT STATED WHILE STOPPED AT A STOP SIGN THE VEHICLE BECAME INOPERABLE. THE VEHICLE WAS TOWED TO THE RESIDENCE. THE CONTACT STATED THE WATER PUMP FAILED WHICH FLOODED THE ENGINE. THE VEHICLE WAS TAKEN TO PLANET FORD LOCATED AT (20403 I-45, SPRING, TX 77388 281-719-3700) AND THE CONTACT WAS INFORMED THAT A DIAGNOSTIC TEST COULD NOT BE SCHEDULED FOR 6-8 WEEKS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE MANUFACTURER STATED THAT THE ENGINE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 192,000.

2010 FORD FLEX WITH DURATEC 3.5L ENGINE - SUDDEN WATER PUMP FAILURE CAUSES COOLANT TO FLOOD THE ENGINE, WHICH CAN CAUSE THE ENGINE TO OVERHEAT AND CUT OFF WHILE DRIVING, WITHOUT WARNING. THIS HAPPENED TO ME WHILE DRIVING TO WORK. LUCKILY I WAS ABLE TO PULL OFF THE ROAD SAFELY. THERE ARE MANY OTHERS WITH THIS ENGINE WHO HAVE HAD THIS PROBLEM, BECAUSE THE WATER PUMP IS INSIDE THE ENGINE-- SEE E.G. HTTP://WWW.CARPROBLEMZOO.COM/FORD/FLEX/WATER-PUMP-PROBLEMS.PHP AND HTTPS://WWW.KTMC.COM/FORD-LINCOLN-WATER-PUMP-ENGINE-FAILURE .

WE HAVE REPLACED THE TURBOS IN OR FORD FLEX ECOBOOST 5 TIMES WITHIN 2.5 YEARS!! THE FRONT AND REAR TURBOS BOTH JUST WENT AGAIN WITHIN ONE MONTH OF EACH OTHER!! WE WERE FINALLY TOLD BY A LINCOLN MECHANIC THE ISSUE IS A BAD/FAULTY OIL SEPERATOR MADE BY FORD. IT IS PUSHING TOO MUCH OIL INTO THE TURBOS CAUSING THEM TO LITERALLY BLOW UP!! SMOKE EVERYWHERE AND CAR IS UNDRIVABLE. I HAVE SMALL CHILDREN AND THIS IS COMPLETELY UNSAFE AND DANGEROUS!!

WATER PUMP LEAKING INTO ENGINE OIL, WHAT SHOULD BE A $500 AT MOST REPAIR IS GOOD TO REQUIRE REPLACEMENT OF THE ENGINE BECAUSE OF POOR WATER PUMP DESIGN.

TL* THE CONTACT OWNS A 2010 FORD FLEX. WHILE DRIVING 30 MPH, THE CONTACT HEARD A POPPING NOISE COMING FROM THE VEHICLE AND THE AIR CONDITIONING BEGAN TO BLOW OUT HOT AIR. THE CONTACT ALSO NOTICED THAT THE VEHICLE BEGAN TO LOSE POWER, OVERHEAT, AND THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE CONTACT DROVE TO KEN GARFF WEST VALLEY FORD (4091 W 3500 S, WEST VALLEY CITY, UT 84120, 801- 559-0314) WHERE IT WAS DIAGNOSED THAT THE WATER PUMP FAILED AND CAUSED THE VEHICLE TO OVERHEAT. THE CONTACT STATED THAT THE ENTIRE ENGINE WAS RUINED DUE TO THE FAILURE AND WAS INFORMED THAT AN ENGINE REPLACEMENT WOULD COST APPROXIMATELY $8,000. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE MILEAGE WAS 178,000. THE VIN WAS UNKNOWN.

ACCELERATING ON INTERSTATE RAMP, VEHICLE STALLED AND SHUT OFF. IT WOULD NOT STAY RUNNING. IT SPUTTERS AND DIES AFTER CRANKING. WE HAD AAA TOW IT OFF THE ROADSIDE AFTER 90 MINUTES WAITING.

TL* THE CONTACT OWNS A 2010 FORD FLEX. WHILE DRIVING AT AN UNKNOWN SPEED, THE TURBOS FAILED AND CAUSED OIL TO BURN THROUGH THE MOTOR. THE FAILURE CREATED AN EXCESSIVE AMOUNT OF SMOKE TO COME THROUGH THE EXHAUST PIPES. HUBLER FORD IN SHELBYVILLE, INDIANA WAS MADE AWARE OF THE RECALL AND STATED THAT THE PARTS WERE UNAVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 110,000.

THE ENGINE SHUT DOWN DURING A LONG-DISTANCE DRIVE RETURNING FROM A VACATION. THE CAR WAS TOWED TO A FORD DEALERSHIP. THE TECHS AT THE DEALERSHIP DETERMINED THAT THE ENGINE FAILED DUE TO A FAULTY (LEAKING) WATER PUMP. THIS WATER PUMP IS INSIDE THE ENGINE BLOCK. THUS, THE LEAK CAUSED CORRUPTION OF OTHER PARTS OF THE ENGINE AND COMPLETE ENGINE FAILURE. THIS PROBLEM WITH THE INTERNAL WATER PUMP HAS BEEN THE SUBJECT OF A RECALL FOR OTHER FORD MODELS, BUT NOT THE FORD FLEX. THE NATIONAL DATABASE OF AUTOMOTIVE TECHNICIANS, IDENTIFIX, REPORTS LEAKING INTERNAL WATER PUMPS TO BE THE NUMBER 1 PROBLEM WITH THE FLEX. HERE ARE THE SPECIFICS OF WHAT HAPPENED: WE HAD BEEN DRIVING FOR APPROXIMATELY 6 HOURS. I WAS AT CRUISING SPEED OF 75 MPH. AS I APPROACHED LUBBOCK TX, THE TEMPERATURE WARNING LIGHT CAME ON AND THE TEMPERATURE GAUGE HAD PEGGED ALL THE WAY TO 'HOT'. I...

TL* THE CONTACT OWNS A 2010 FORD FLEX. WHILE DRIVING VARIOUS SPEEDS, THE TURBOS FAILED ON THE VEHICLE. THE CONTACT STATED THAT THE TURBOS WERE REPLACED ON THE VEHICLE FIVE TIMES WITHIN ONE YEAR, ALONG WITH THE CATALYTIC CONVERTER AND SOME SENSORS. THE CONTACT STATED THAT BLACK SMOKE EXITED FROM THE EXHAUST PIPES IN THE REAR OF THE VEHICLE WHEN THE TURBOS FAILED. PACIFICA FORD IN PHILADELPHIA, PENNSYLVANIA WAS MADE AWARE OF THE FAILURE AND REPAIRED THE VEHICLE, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VIN AND FAILURE MILEAGE WERE UNKNOWN.

WHEN I DRIVE MY VEHICLE & APPLY THE BRAKE, THE BRAKE PEDAL VIBRATES & THE RPMS INCREASE AND THE VEHICLE STALLS OUT. WHEN MY HEAT IS ON HIGH WHETHER VENTS OR THE FLOOR, AND APPLY THE BRAKE WHILE DRIVING, THE BRAKE PEDAL VIBRATES AND THE RPMS INCREASE AND THE VEHICLE STALLS OUT.

PISTON RINGS FAILED AT 103,000 MILES. TOTAL LOSS OF COMPRESSION AND BILLOWING WHITE SMOKE PRODUCED FROM THE EXHAUST. ALWAYS SERVICED REGULARLY.

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 FORD FLEX OWNERS REPORT SIMILAR PROBLEM SINCE 2009. RUMOR IS THAT REPLACING THE THROTTLE BODY CORRECTS THE ISSUE.

WAS TRYING TO ACCELERATE AROUND A CAR AND LOSS ALL POWER AND CHECK ENGINE LIGHT IMMEDIATELY STARTED FLASHING AND THE ENGINE STARTED MISFIRING AND LOSS ALL POWER AND NOW THE FORD DEALER SAYS THAT I NEED A NEW ENGINE.

WHILE MERGING ONTO A HIGHWAY THE ENGINE SUDDENLY LOST POWER AND BEGAN SHUTTERING/VIBRATING BADLY. THIS LOSS OF POWER NEARLY CAUSED A SEVERE ACCIDENT AS THE SUDDEN SLOW DOWN CAUSED CARS BEHIND US TO TAKE EVASIVE ACTION. THE CHECK ENGINE LIGHT ILLUMINATED IMMEDIATELY. WE DROVE THE CAR TO THE DEALERSHIP PER INSTRUCTIONS FROM THE SERVICE REP. THE VEHICLE HAS THE 3.5L ECOBOOST ENGINE. THE SERVICE TECH FIRST SAID AN IGNITION COIL WENT BAD AND REPLACED IT, ONLY TO DISCOVER THAT IT DID NOT FIX THE PROBLEM. THEY DID A CYLINDER COMPRESSION TEST AND WERE LOOSING COMPRESSION IN ONE CYLINDER. THE ENGINE HAD TO BE DISASSEMBLED TO DIAGNOSE THE PROBLEM. THE SERVICE TECH FOUND THE CYLINDER RINGS HAD FAILED IN ONE CYLINDER AND NOW HAS TO REPLACE THE WHOLE ENGINE AT A COST OF $7,800. THE ENGINE ONLY HAS 55,000 MILES ON IT! THERE WERE NO WARNING INDICATORS THAT ANYTHING WAS WRONG...

VEHICLE WAS TURNING OFF OF A STATE HIGHWAY INTO A SCHOOL ENTRANCE. WITHOUT WARNING (NO WARNING LIGHTS ON DASH) ENGINE STOPPED RUNNING. DUE TO ENGINE SHUT DOWN ALL AUXILIARY SYSTEMS LOST POWER. VEHICLE WAS MAKING A LEFT TURN INTO A SCHOOL ENTRANCE WHEN ENGINE TURNED OFF. IN THE MIDDLE OF THE TURN THE LOSS OF POWER STEERING AND POWER BRAKES MADE NEGOTIATING THE TURN UNSAFE. THE OPERATOR WAS UNABLE TO KEEP THE VEHICLE ON THE PAVED ENTRANCE AND ENDED UP OFF THE SHOULD AND INTO THE GRASS. FORTUNATELY THERE WERE NO PEDESTRIANS OR OBSTACLES. FAILURE COULD CAUSE A SAFETY ISSUE AT HIGHWAY SPEED DUE TO POTENTIAL FOR REAR ENDING DUE TO LOSS OF POWER. THIS ENGINE FAILURE IS DUE TO FORD 3.5 DURATEC INTERNAL WATER PUMP DESIGN. WHEN THE WATER PUMP SEALS FAIL, ALL COOLANT IS CONTAINED IN THE MOTOR AND COLLECTED IN THE OIL PAN. BY COLLECTING THE COOLANT...

TOTAL MOTOR FAILURE WHEN DRIVING! TRANSMISSION FREQUENTLY SLIPS. MOTOR HAD TO BE REPLACED. WHEN PRESSURE EXHAUST FOR ECOBOOST IS REDIRECTED TO CYLINDER 3 AND 5 THE HEAD GASKET FAILS ALLOWING WATER TO ENTER THE HEAD OF MOTOR WHICH THEM STEAM FRIES THE CYLINDERS. THIS IS VERY COMMON IN THE 2010 FLEX WITH ECBOOST AND NEED TO BE RECALLED ASAP! MOTORS UP TO 100,000. MINE HAD 74000 WHEN FAILURE OCCURRED. *TR

ECO BOOST ENGINE STALL DUE TO CONDENSATION OF AIR FROM THE COLD AIR COMPRESSOR IN THE TURBO CHARGER FOR THE ENGINE. HAVE HAD CAR SERVICED SEVERAL TIMES AND DEALER OR MECHANIC CAN NOT RESOLVE PROBLEM. HAPPEN IN FREEWAY AT HIGH SPEED BUT HAS ALSO HAPPENED IN THE STREET AT 20 - 30 MPH

MAJOR ENGINE FAILURE WHILE DRIVING 45MPH. ENGINE HAS 108,000 MILES. NOW ENGINE NEEDS TO BE REPLACED. ENGINE JUST SHUT OFF WHILE DRIVING IN TRAFFIC ON US HWY 41 IN LAND O LAKE FL, REPAIR ESTIMATED AT $6500.

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 WAS ABLE TO COAST TO A STOP SAFELY. ONCE STOPPED THERE WAS A VERY STRONG SMELL OF COOLANT. I OPENED THE HOOD AND FOUND A LARGE AMOUNT OF COOLANT ON RIGHT SIDE OF ENGINE. MY CAR WAS TOWED TO MY HOME TO FIGURE OUT WHAT THE ISSUE COULD BE. ON FURTHER INSPECTION IT IS SUSPECTED THAT THE WATER PUMP FAILED WHICH IS INTERNAL TO THE TIMING CHAIN COVER AND THEREFORE DUMPED A LARGE AMOUNT...

TL* THE CONTACT OWNS A 2010 FORD FLEX. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 70 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THERE WAS A MISFIRE ON CYLINDER NUMBER 3 AND 2 AND THAT THE FUEL INJECTOR NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, HOWEVER, THE FAILURE RECURRED WHILE DRIVING APPROXIMATELY 50 MPH. THE VEHICLE RESTARTED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 47,000.

AS INDICATED BY A NUMBER OF FLEX OWNERS, MY FLEX SIMPLY DIED IN THE MIDDLE OF THE FREEWAY GOING 70 MPH. NO WARNING - LIGHTS ON DASH WENT ON, LOST ALL POWER INCLUDING POWER STEERING. AFTER MUSCLING THE CAR TO THE SHOULDER, PUTTING IN PARK AND SITTING FOR A FEW MINUTES, IT STARTED BACK UP. TOOK TO DEALER WHO SAID THEY COULD FIND NOTHING WRONG. EXTREMELY DANGEROUS. I WAS ALMOST REAR ENDED. HOW MANY DIFFERENT PEOPLE NEED TO BE AFFECTED BY THIS PROBLEM BEFORE FORD AND NHTSA TAKE ACTION.

2010 FORD FLEX. CONSUMER WRITES IN REGARDS TO VEHICLE THROTTLE PROBLEMS. *SMD THE CONSUMER STATED THE VEHICLE WOULD ACCELERATE ON ITS OWN, WHICH THEN CAUSED THE VEHICLE TO GO INTO SAFE MODE. THE VEHICLE IMMEDIATELY SLOWED DOWN AND WOULD NOT GO ABOVE 10 MPH OR IT SHUT OFF COMPLETELY. FORD INFORMED THE CONSUMER, THE FIX WOULD COST $550. *JB

ORIGINAL OWNER 2010 FORD FLEX, ECOBOOST ENGINE: SUDDEN LOSS OF ENGINE POWER WITH SHUDDERING AND STALL IN FAST LANE; UP HILL WHILE PASSING AT SPEED, 60MPH TO 20MPH IN SECONDS CAUSING NEAR COLLISION FROM BEHIND. ENGINE WOULD NOT RECOVER, 20MPH IN FAST LANE WITH SEMI'S AND SPEEDING TRAFFIC, NO PULL-OFF AREA. CLEAR DRY DAY, TEMPERATURE AROUND 55 DEGREE. NOT THE FIRST TIME ENGINE SHUDDERING EXPERIENCED, BUT THE MOST DANGEROUS. ALWAYS OCCURS DURING ACCELERATION (PULLING OUT IN TRAFFIC OR PASSING, ETC.). BEGAN TO NOTICE LOSS OF POWER, WHINING AND GRINDING NOISES FROM TURBOS ABOUT TWO WEEKS AGO; SUBSEQUENT CATASTROPHIC FAILURE OF BOTH TURBO CHARGERS WITH BILLOWING BLACK SMOKE AND OIL DRIPPING FROM EXHAUSTS. 38K MILES, GARAGE KEPT, ALL SERVICE POINTS MAINTAINED, DRIVEN LIKE GRANDMOTHER SINCE NEW. FIST THE REAR BRAKES LOCKED UP WHILE DRIVING AT 18K MILES, NOW ENGINE FAILURE AT 38K. DO SOMETHING NTSB BEFORE THESE VEHICLES KILL SOMEONE! *TR

TL* THE CONTACT OWNS A 2010 FORD FLEX. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 75 MPH, THE ENGINE WARNING INDICATOR ILLUMINATED AS THE VEHICLE BEGAN TO VIBRATE VIOLENTLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR DIAGNOSIS. THE TROUBLE CODE DETECTED THAT CYLINDER NUMBER 4 HAD FAILED WITHOUT COMPRESSION AND ALSO MISFIRED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND THEY INFORMED THE CONTACT THAT THERE WAS NOT A RECALL RELATED TO THE DEFECT. THE APPROXIMATE FAILURE MILEAGE WAS 67,462.

2010 FORD FLEX ECOBOOST WE HAD SEVERAL INCIDENTS WHERE THERE WAS A LOSS OF POWER AND SHAKING UPON ACCELERATION. THE DEALERSHIPS WERE UNABLE TO REPLICATE OR DETERMINE ANY PROBLEMS. THE MOST SIGNIFICANT INCIDENT OCCURRED WHEN ACCELERATING FROM A TOLL BOOTH. THE CAR ENGINE LOST SIGNIFICANT POWER AND DIED SEVERAL TIMES. THE RESULT AFTER THIS INCIDENT WAS A DEAD ENGINE THAT NEEDED TO BE COMPLETELY REPLACED. *TR

V6 ECOBOOST ENGINE, HAS SAME ACCELERATION / STALLING SYMPTOMS AS THE F150 ECOBOOST HAPPENS SEVERAL TIME A WEEK, DEALER WAS UNABLE TO HELP WHEN IT WAS UNDER WARRANTY. STARTED WITHIN MONTHS OF PURCHASE (NEW) IN 2010. HTTP://WWW.LATIMES.COM/NEWS/LA-FI-HY-FORD-F150-ECOBOOST-INVESTIGATION-20130526,0,2968753.STORY. *TR

WHILE DRIVING ON A HIGHWAY DURING RUSH HOUR TRAFFIC, AS THE TRAFFIC SLOWED DOWN, AND I PRESSED THE BRAKE, THE ENGINE SHUT COMPLETELY DOWN. FIRST THE BATTERY LIGHT CAME ON AND THEN ALL LIGHTS WITHIN THE SPEEDOMETER CLUSTER CAME ON. TRAFFIC BEGAN TO PICK BACK UP AND I WAS GOING UP HILL, YET I WAS MERELY COASTING AT THE SPEED I WAS BEFORE I STOPPED AND SLOWING DOWN. LUCKILY THE TRAFFIC DID NOT COME TO A COMPLETE STOP BECAUSE I WOULD HAVE BEEN SITTING IN THE MIDDLE OF THE ROAD. I AM NOT EXACTLY SURE WHAT THE SPEED WAS BECAUSE I WAS MORE CONCERNED WITH WHAT I SHOULD DO. I WAS IN THE MIDDLE LANE AND NOT ABLE TO GET OVER. WITH MY WIFE AND TWO TODDLERS IN THE CAR, I THOUGHT QUICKLY AND PUT THE CAR IN NEUTRAL AND ATTEMPTED TO RESTART THE CAR, IT WORKED, AND I WAS...

VEHICLE BOGS DOWN DURING ACCELERATION. NO TROUBLE CODES SHOWN. NOT SPEED SPECIFIC. MPG HAS DROPPED SIGNIFICANTLY, FROM 24 HIGHWAY MPG, TO 14 HIGHWAY MPG. JUST HAD TRANSFER CASE REPLACED. FEELS AS IF THE VEHICLE IS FIGHTING ITSELF AGAIN. *JS