1993 Mercury Grand Marquis Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1993 Mercury Grand Marquis

1993 Mercury Grand Marquis Problems

The throttle position sensor (TPS) may fail. Common symptoms of a defective TPS can be rough idle, hard starting, hesitation on acceleration, poor fuel economy, and stalling.

The EGR valve position (EVP) sensor can fail on this vehicle. The EVP sensor measures the EGR valve position and transmits the date to the engine control computer. If it fails, drivability and fuel economy can suffer, the Check Engine Light will commonly illuminate.

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1993 Mercury Grand Marquis Questions

Ok so I have picked up this weird problem. The car has 68,000 miles on it, today the front right brake caliper locked up and is pulling the car to the right side. It doesn't matter if you press the brake or not its dead locked to the rotor. From what I can tell it's only that side (fron...

but not much. Blower works fine. one hose gets hot, other one cold.

red brake warning comes on in dash every so often

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1993 Mercury Grand Marquis Recalls

FORD IS RECALLING 225,000 MY 1992-2003 ECONOLINE, MY 1993-1995 TAURUS SHO, MY 1992-1998 CROWN VICTORIA, MY 1993 BRONCO, F-SERIES, MY 1995-1997 F-SERIES SUPER DUTY STRIPPED CHASSIS, MY 1992-1998 MERCURY GRAND MARQUIS, AND MY 1992-1995 LINCOLN TOWN CAR VEHICLES. THE AFFECTED VEHICLES WERE PREVIOUS...ON CERTAIN PICKUP TRUCKS, PASSENGER VEHICLES, SPORT UTILITY VEHICLES, AND MOTOR HOMES CHASSIS, THE SPEED CONTROL DEACTIVATION SWITCH MAY, UNDER CERTAIN CONDITIONS, LEAK INTERNALLY AND THEN OVERHEAT, SMOKE, OR BURN.VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE SPEED CONTROL DEACTIVATION SWITCH CAN DEVELOP A RESISTIVE SHORT IN THE ELECTRICAL CIRCUIT THAT COULD POTENTIALLY RESULT IN AN UNDERHOOD FIRE. A FIRE IS POSSIBLE BOTH WHEN THE VEHICLE IS RUNNING AND WHEN THE VEHICLE ENGINE IS OFF. ALSO, THE SHORT COU...

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