2008 Mercury Mariner fuel system NHTSA complaints: Fuel System, Gasoline

NHTSA — Fuel System, Gasoline Problems

CarComplaints.com Seal Of This Might Hurt

CarComplaints.com Notes: The 2008-2011 Mercury Mariner has a dangerous problem with the power steering that Ford says they fixed when they didn't -- at least not 100%.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
50,763 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.

2008 Mercury Mariner fuel system problems

fuel system problem

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2008 Mercury Mariner Owner Comments

problem #2

Jan 102014

Mariner 4-cyl

  • 91,526 miles


I pulled into a gas station to turn around. When I came to a complete stop and pressed the gas pedal to go, my gas pedal wouldn't budge it was like it was stuck. When I pulled on the highway it done it again but it took longer to get my gas pedal to press down. When I come to stop now I have to keep my foot on the break and the gas pedal to insure that it will go when I press the gas pedal.

- Pulaski, TN, USA

problem #1

Nov 152011

Mariner 4-cyl

  • 10,000 miles
Accelerator gas pedal difficult to depress when weather gets cold (below 50F). It requires a harder press to engage and have the car move. It is dangerous when crossing an intersection after a stop. For the failure to work right keeps us in the intersection as we try to move out of the way of oncoming traffic. Having to press harder results in loss of control as we maneuver the car when turning at an intersection. We took the car to the dealer and they added a lubricant. It helped a little, but it was again difficult the next cold front that we had (temperatures below 50F). This condition graduated from the first winter we owned it in 2008 to this winter starting in 2011. It appears that the pedal works better after the car has been operating for a while, like 20 minutes or so.

- Laredo, TX, USA

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