Table 1 shows one common gasoline fuel system related problems of the 2005 Mercury Mariner.
| Problem Category | Number of Problems |
|---|---|
| Gasoline Fuel System problems |
While stopped, the accelerator pedal sticks in the "up" position, and requires excessive force to move the vehicle. This sometimes results in excessive acceleration when the pedal becomes unstuck.
Gas mileage has suddenly and markedly plummeted on highway driving. Air filter replaced - no change. There has been no change in driving patterns. It has gone from around 20 hwy to around 10 hwy out of the blue - no engine/tranny/brakes issues or anything like that. Not a clue.
Fuel mileage for 2005 Mercury Mariner is not even close to what is stated on window sticker. I completely understand that driving habits and condition apply, but when the window sticker reads 22 local 26 hwy and your actual is 16 hwy, there is something wrong. The car has been to the dealer on a regular basis and each time I have complained. They do there own test and state the truck is getting 22 mpg. I do all highway driving on a relatively flat surface all week long and only get 16 mpg. The tail pipe is full of soot and the dealer states no problem.