One problem related to gasoline fuel system has been reported for the 2005 Mercury Mountaineer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Mercury Mountaineer based on all problems reported for the 2005 Mountaineer.
Without warning of any kind the engine quits under 35 mph, sometimes with cruise control on. After car rolls to a stop, it can restart right away. Loss of power steering and brakes. Dealer says no codes to back up complaint. This has as happened at least 3x spread over 35,000 odometer miles.
| Gasoline Fuel System problems | |
| Tank Assembly problems |