Gasoline Fuel System Related Problems of the 1999 Mercury Mystique

Table 1 shows five common gasoline fuel system related problems of the 1999 Mercury Mystique. The number one most common problem is related to the tank assembly (two problems). The second most common problem is related to the fuel delivery (one problem).

Table 1. Gasoline Fuel System related problems of Mercury Mystique


Recently reported Gasoline Fuel System problems of the 1999 Mercury Mystique

The Tank Assembly problem

1999 Mercury Mystique, second owner, purchased is 2005. The gas line freezes when the temperature reaches below 20 degrees. The tank is half full, treated for winter weather and it still freezes. This is not normal: I've owned 2 other vehicles (Ford tempo/Dodge stratus) never happened.   Read details...

The Fuel Delivery problem

Mr   Read details...

The Fuel Pump problem

There is a constant gas smell during the winter time. The smell is worse right after filling the car with gasoline and anytime the car is started more than one time such as needed to take care of errands. The smell is so bad at times I am afraid to leave the car close to the house.   Read details...


Gasoline Fuel System related problems in other Mercury Mystique model year vehicles:



Fuel Economy of Mystique Vehicles
Mystique Service Bulletins
Mystique Safety Recalls
Mystique Defect Investigations