definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
40,025 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Ford Flex fuel system problems

fuel system problem

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2009 Ford Flex Owner Comments

problem #4

Dec 012014

Flex 6-cyl

  • 68,000 miles


The issue that has recently cropped up on our Flex is the fuel meter will read sufficient fuel for approximately 50 miles and then, in a matter of miles, the tank seems to run dry/indicate no miles left. On this particular date I was driving the car it indicated 49 miles to empty. After 3 miles it ran out of gas. Fortunately I was on a side street and not the highway. This behavior could have been fatal if I was operating on a highway. I am not the only one having this issue. Please see fordflex.net for additional cases as an example: www.fordflex.net/forums/viewtopic.php?F=20&T=9449&sid=6D4B835271D1154C67fcd43967cb2906.

- Bedford, MA, USA

problem #3

Jun 022011


  • 52,300 miles
Vehicle running sluggish approx. 3 weeks prior. Check engine light warning came on and immediately took vehicle to Ford for a diagnostics check. Vehicle had a code P0422, test ran verified evaporative system leak. I was told it was a safety issue and not drivable. Fuel filler pipe was cracked and needed replacement. Ford has prior recalls for this part over the years, although Ford did not cover this repair. 1 week prior one of two engine fans went out requiring replacement.

- Clermont, FL, USA

problem #2

Nov 012009


  • 29,800 miles
There is not a fuel filter on my Ford Flex, why not?

- Deland, FL, USA

problem #1

Jul 242010


  • 10,000 miles
The check engine light has come on 4 times in the past year. The error code relates to the capless fuel system. The dealer has reset the code and replaced a fueling tube. On 7/24/10, engine light lit and five minutes later the engine cut out while driving less than 20 mph. Car restarted without issue. It is currently being serviced.

- Carmichaels, PA, USA

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