Vehicle Data Hub

2009 Mercury Mariner fuel system problems

Owners reported fuel system problems in 30 complaints for the 2009 Mercury Mariner, 7% of the complaints on file.

At a glance

Complaints
30 7% of this year's complaints
Typical mileage
73,000 miles 29 complaints with mileage
Crashes and fires
0 and 0
Injuries and deaths
0 and 0

Source: NHTSA owner complaints

When fuel system problems show up

Fuel system complaints by mileage, 2009 Mercury Mariner Complaints by odometer reading in 20,000-mile steps. The median is about 73,000 miles. 0k to 20k miles: 2 complaints 20k to 40k miles: 3 complaints 40k to 60k miles: 4 complaints 60k to 80k miles: 7 complaints 80k to 100k miles: 5 complaints 100k to 120k miles: 5 complaints 120k to 140k miles: 1 complaints 140k to 160k miles: 1 complaints 160k to 180k miles: 1 complaints 180k to 200k miles: 0 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 73,000 miles
Based on 29 complaints that include mileage. 31% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles2
20k to 40k miles3
40k to 60k miles4
60k to 80k miles7
80k to 100k miles5
100k to 120k miles5
120k to 140k miles1
140k to 160k miles1
160k to 180k miles1
180k to 200k miles0
200k+ miles0

What the data shows

Of the 29 fuel system complaints that report mileage, the median is about 73,000 miles, and 31% were reported before 60,000 miles.

None of the fuel system complaints mention a crash, fire, injury or death.

What owners wrote

Ford motor co. Produced 2009 & 2010 mercury mariner vehicles' fuel system leaks gas when attempting to top off the gas tank. All ford vehicles produced over the past two years may be affected. Ford will not fix the problem and tells the customer to not top off the gas tank although nothing is included in the owner's manual about this nor are dealerships admitting any knowledge about the problem nor has ford sent any service bulletins to affected dealerships.

Reported at 8,800 miles, November 2009

While in motion the car will stall causing me to pull off to the side of the road, turn the car off, then back on in order for it to work again. This happens every 10-15 miles and its really unsafe! I believe it is a defective throttle body and needs to be fixed asap before I can continue driving it.

Reported at 165,228 miles, May 2017

Other problems reported for the 2009 Mercury Mariner

Fuel system problems in other years

  • 2011
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • 2004
  • 2003
  • 2002
  • 2001

Fuel system problems across all Mercury models