1999 Mercury Mystique Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1999 Mercury Mystique

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The Check Engine Light can illuminate with codes due to the lack of EGR (exhaust gas recirculation) flow caused. This is commonly a result of a clogged passage in the intake manifold. To correct this problem, the EGR valve has to be removed and the passage cleaned thoroughly. Partial restriction of this passage can cause smog test failures for the NOx emissions without causing a drivability symptom.

If you experience difficulty starting the engine when cold, stalling at idle, or hesitations during acceleration, it may be the idle air bypass valve. This valve helps the vehicle idle steady when the accelerator pedal is not pressed.

The hi-amp alternator fuse at the firewall commonly shorts out; the shorted fuse could be mistaken for a bad alternator.

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The remote that locks and unlocks doors does not work. The door mounted power door locks also does not work. Replaced the fuse And the batteries in the remote it still wont work to open doors or trunk.

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VEHICLE DESCRIPTION: PASSENGER VEHICLES NOT EQUIPPED WITH THE ANTI-LOCK BRAKING SYSTEM (ABS). A PRESSURE CONSCIOUS REDUCING VALVE (PCRV) IN THE REAR BRAKES MAY BE SUBJECT TO CORROSION AND RESULT IN MALFUNCTION, WHEN OPERATED IN AREAS THAT USE SALT COMPOUNDS ON THE ROADWAY FOR DE-ICING OR DUST C...VEHICLE DESCRIPTION: PASSENGER VEHICLES BUILT WITH AUTOMATIC TRANSMISSIONS WHICH UTILIZE A PARK/LOCK SOLENOID. IT IS POSSIBLE TO ROTATE THE IGNITION KEY TO THE LOCK POSITION AND REMOVE THE KEY WITHOUT THE SHIFT LEVER AND TRANSMISSION BEING IN PARK. THESE VEHICLES DO NOT COMPLY WITH THE REQUI...

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Best car I ever had and still have for 5 yrs now and still going strong...

The car appear to be in great shape but, everytime I turn around there is something wrong with this car.

the best running car ever.

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