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EnginePart report

2009 Ford Flex Engine Problems

Complaints
36about this part
Share
20%of 181 total for the year
Median mileage
100,000miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 36 complaints about the engine of the 2009 Ford Flex, 20% of the 181 complaints for this model year. Where a mileage was given, the median is 100,000 miles. 1 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I was driving about 45 mile per hr. Then my Ford FLEX started to stall so I had it towed to a near by repair shop , they looked over my vehicle and they came to the conclusion, that the water pimp had failed and coolant entered the block, so there for the engine needed to be replace. We are now in the process of the repair invoice 369486 02/28/2020”

NHTSA complaint #11317747, filed 2020-03, 133,615 miles

“Part of my power in my car shut off on the freeway, at 1:39 pm at 67 degrees outside . I had been driving for 40 minutes. My dashboard went dark, and only my clock time was on. I glided to the side of the road, and was able to pull the car very hard to the right (as the power steering was off). Then turned the key to off, waited 3 minutes turned the key and it went back on. It has not happened again.”

NHTSA complaint #11093939, filed 2018-05, 112,000 miles

“Last night, I went to back the car out of the garage and while in reverse, the engine started revving up uncontrollably and even though I had my foot on the brakes, it kept moving in reverse. I quickly put it in neutral and the revving came down. Shut down the car, restarted it and this time, I put it in drive and the same thing happen again only to start lunging forward even while braking. If I were in traffic or at a stop light or sign, I would have surely hit the person(s) in front or behind me. …”

NHTSA complaint #11404610, filed 2021-03, 138,000 miles

“My daughter was driving on interstate at 70 MPH when the FLEX totaling shut down. She had no power steering, brakes or lights. It started back up after a couple of hours and was giving bogus messages on the display. Ford dealer says there are no codes showing up, so they won't be able to determine what caused this. We cannot drive anymore without knowing what happened, since it might happen again and would be very dangerous if going over a mountain pass at the time it happens. We live in montana.”

NHTSA complaint #10787262, filed 2015-10, 93,000 miles

“While drive on the highway with my youngest son, my car suddenly decellerated and eventually the car's engine completely died. Fourtunatly I was able to get out of the lanes of traffic and onto an exit ramp. The ramp had a wall on the passenger side and fast exiting traffic on the drivers side. I could not safely exit the vehicle in this location. After about 5 minutes, I was able to start the car enough to move it to a safer location 30-40 yards off the exit (where the car again died). …”

NHTSA complaint #10544216, filed 2013-09, 140,000 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
201952%
201811%
201712%
201688%
20151110%
2014229%
2013336%
20121117%
20112517%
20103022%
20093620%

Other parts of the 2009 Ford Flex

Brakes
33 complaints
Electrical system
32 complaints
Transmission and drivetrain
23 complaints
Fuel system
19 complaints
Other or unknown
19 complaints
Steering
18 complaints
Engine cooling
17 complaints
Body and structure
12 complaints
Electronic stability control
10 complaints
Suspension
9 complaints
Vehicle speed control
8 complaints
Visibility (wipers, defrost, mirrors)
7 complaints

← All problems reported for the 2009 Ford Flex

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology