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EnginePart report

2019 Ford Flex Engine Problems

Complaints
5about this part
Share
2%of 257 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine of the 2019 Ford Flex, 2% of the 257 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

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

“In October of 2025 the vehicle began to make engine noises. Within a day the vehicle stalled and shut down completely. I had my mechanic examine the car and they advise coolant had leaked into the engine cause damage. The engine had to be replaced. No warranty coverage and 4k later.”

NHTSA complaint #11735238, filed 2026-05

“2019 Flex , Odometer reading 58,190. Coolant seen on lower part of engine along with low coolant level. Took to dealership who confirmed the water pump failed and was leaking. We were lucky it was caught early before coolant leaked into the engine, causing the engine to stop while driving and permanently damage engine. There are no warnings for this when it happens (coolant leaking into engine),we were just fortunate to notice low coolant. …”

NHTSA complaint #11741616, filed 2026-06

“I am submitting a formal complaint regarding multiple premature and potentially safety-related failures on my 2019 Ford Flex, purchased new on 11/25/2019. These include: ⚠️ 1. …”

NHTSA complaint #11676254, filed 2025-07

“Coolant Intrusion - Water pump leaked inside the engine, causing engine failure. The engine has to be replaced. This has been a known problem with this model and has been fixed/covered by the warranty.”

NHTSA complaint #11668622, filed 2025-06

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 2019 Ford Flex

Back-over prevention (rear camera)
145 complaints
Body and structure
59 complaints
Other or unknown
53 complaints
Electrical system
23 complaints
Visibility (wipers, defrost, mirrors)
12 complaints
Suspension
6 complaints
Lane departure
4 complaints
Steering
3 complaints
Transmission and drivetrain
3 complaints
Air bags
2 complaints
Engine cooling
2 complaints
Seat belts
2 complaints

← All problems reported for the 2019 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