Possible causes for a fuel pump issue include:
* Blown fuse: Check your owner's manual to locate the fuel pump fuse and check its condition.
* Relay failure: The fuel pump relay might be faulty. Again, consult your owner's manual for its location.
* Fuel pump itself: The pump could be failing or has failed completely. This requires professional diagnosis and replacement.
* Wiring problems: A short circuit or damaged wiring can prevent the pump from working.
* Low fuel: Sounds obvious, but make sure you have enough gas!
* Inert Switch (Inertia Switch): Some vehicles have an inertia switch that cuts power to the fuel pump in a collision. This is usually located under the dash or in the engine bay. Check your owner's manual for its location and reset it if tripped.
If you're experiencing fuel delivery problems, it's best to take your Mountaineer to a mechanic for diagnosis. Trying to fix a fuel pump issue without proper knowledge can be dangerous.
