Mechanics

MERCURY MYSTIQUE FUEL PUMP PROBLEM

1998 Mercury Mystique

We have a 1998 Mercury Mystique. It runs great until you get up to about 65 mph. Then the car starts like almost stalls. It jerks real hard for a second then is fine. It usually happens going up hills if it needs to shift. I don't know what is wrong with it. I have had several people look at it and know one can tell me what is wrong with it. It has about 168,000 miles on it. Please Help
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CathyB
May 4, 2007.




Test the fuel pump pressure. When was the last tune up? Including all filters? Then check mass airflow sensor.

Merlin2021
May 6, 2007.


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