2008 Mercury Mariner fuel system complaints

Filed Mar 4, 2012 · Acceleration, Fuel system · 10,000 miles · TX

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.