12 of the 202 complaints about the 1999 Mercury Grand Marquis are about the throttle and cruise control — 6% of everything reported for this model year. Half of the failures with a mileage on record happened before 102,500 miles.
12
Complaints
5
Crashes
0
Fires
1
Injuries
Filed with NHTSA, in their own words.
VEHICLE SPEED CONTROL
THE PASSENGERS SIDE SEAT BEAT COMES UNDONE AT TIMES AND THE SPEED SENSOR WORKS INTERMITTENTLY AND IT LEAKS GAS FROM AROUND THE FUEL PUMP
NHTSA complaint #10870118 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL
MY CAR WAS IN DRIVE AT A BUSINESS TRAFFIC INTERSECTION DRIVE WAY ON A SLIGHT HILL WITH THE BRAKES ON WHEN THE ENGINE SURGED AND THE CAR STARTED TO REVERSE WHILE STILL IN DRIVE. I HAD TO PUT CONSIDERABLE PRESSURE ON THE BRAKES TO STOP IT. I CHECKED AND THE SHIFT LEVER WAS STILL IN DRIVE. MY CAR HAS BEEN PROPERLY MAINTAINED AND WAS RECENTLY SERVICED WITH ALL REQUIRED SERVICES DONE. THIS REALLY SCARED ME AND I WOULD HAVE CRASHED INTO A CAR IF IT WAS BEHIND ME. FORD SHOULD LOOK INTO THIS SAFETY PROBLEM.
NHTSA complaint #10663813 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL:CRUISE CONTROL
TL* THE CONTACT OWNS A 1999 MERCURY GRAND MARQUIS. WHILE DRIVING 75 MPH WITH THE SPEED CONTROL ENGAGED, THE SPEED INCREASED WHEN THE BRAKES WERE APPLIED AND FAILED TO DISENGAGE. THE CONTACT WAS FORCED TO MANUALLY DISENGAGE THE VEHICLE SPEED CONTROL IN ORDER TO AVOID A CRASH. THE DEALER ADVISED THE CONTACT TO BRING THE VEHICLE IN TO BE REPAIRED AT HIS EXPENSE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 97,000. UPDATED 10/21/11 *BF THE CONSUMER STATED WHEN HE ATTEMPTED TO DISENGAGE THE CRUISE CONTROL, THE VEHICLE JERKED AND WENT INTO PASSING GEAR, FAILING TO DISENGAGE FROM CRUISE CONTROL. THE CONSUMER HAD TO PURCHASE A NEW SWITCH, DUE TO THE FAILURE OF THE CRUISE CONTROL. UPDATED 12/19/11
NHTSA complaint #10422547 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL
TL*THE CONTACT OWNS A 1999 MERCURY GRAND MARQUIS. WHILE DRIVING AT ANY SPEED, THE TRACTION CONTROL LIGHT FLASHED AND THE VEHICLE LOST ACCELERATION. THE CONTACT ATTEMPTED TO ACCELERATE, BUT THE SPEED WOULD NOT INCREASE. THE DEALER CHARGED $100 FOR A DIAGNOSIS, BUT COULD NOT DUPLICATE THE FAILURE. THE CONTACT IS AFRAID THAT A CRASH COULD OCCUR. THE MANUFACTURER WAS NOTIFIED; HOWEVER, THEY FELT THAT THE COMPLAINT WAS UNIMPORTANT. THE FAILURE MILEAGE WAS 135,000.
NHTSA complaint #10226902 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL:CABLES
WHILE SITTING IN TRAFFIC ACCELERATOR CABLE SNAPPED, CAUSING CONSUMER'S VEHICLE TO STRIKE THE VEHICLE IN THE FRONT. *AK......CENTRAL COLLISION CENTOR OF NEW LENOX, INC 114 OAK STREET, NEW LENOX,IL 60451 REPLACED THE CABLE, AN DNOT THE DEALER. CONSUME RHAS THE OLD PARTS.
NHTSA complaint #10103676 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL:CRUISE CONTROL
VEHICLE WILL NOT IDLE, CONSUMER HAS TO PRESS ACCELERATOR TO KEEP VEHICLE IDLING. DEALER REPLACED IDLE CONTROL VALVE TWO MONTHS AGO. AT THIS TIME PART NEEDS TO BE REPLACED AGAIN. VALVE WAS FIRST REPLACED IN 2000.
NHTSA complaint #8016022 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL
WHILE SLOWLY PARKING VEHICLE, CONSUMER STATES THE VEHICLE ALL OF A SUUDEN LUNGED FOWARD IN FULL ACCELERATION, IT JUMPED THE PARKING BUMPER AND INTO THE VEHICLE IN THE OPPOSITE PARKING SPACE, SIDESWIPED ANOTHER VEHICLE AND PUSHED THE FIRST VEHICLE INTO A THIRD VEHICLE, THE BRAKES HAD NO EFFECT IN STOPPING THE VEHICLE.
NHTSA complaint #564894 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL:LINKAGES
ACCELERATOR GOT STUCK IN OPEN POSITION, CAUSING VEHICLE TO CONTINUE ACCELRATING AFTER COMING TO A STOP. VEHICLE HIT SOME THING BEFORE SHUTTING OFF.FORD HAS BEEN CONTACTED.
NHTSA complaint #868547 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL
I PULLED UP TO AN INTERSECTION, THE CAR ACCELERATED RAPIDLY. I MASHED BRAKES BUT CAR KEPT ON RAPIDLY ACCELERATING, TIRES SCREECHING AND PEELING RUBBER. I HAD TO TURN OFF IGNITION TO STOP CAR.
NHTSA complaint #727424 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL
VEHICLE DOWNSHIFTED INTO PASSING GEAR WHILE DRIVING DOWN A HILL AND VEHICLE ACCELERATED. BRAKES DID NOT RESPONSE, CAUSING CONSUMER TO RUN INTO A BUS AND TELEPHONE POLE. ALSO, DUAL AIRBAGS DID NOT DEPLOY. BUT, COVER CAME OFF, RESULTING IN A BROKEN HIP AND PELVIS. PRIOR TO THIS ACCIDENT CONSUMER WAS COMPLAINING ABOUT TRANSMISSION. BUT, DEALER STATED IT WAS NOT IMPORTANT.
NHTSA complaint #859937 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL
THE VEHICLE ACCELERATED FORWARD WITH THE DRIVERS FOOT ON THE BRAKE PEDAL, AND HIT ANOTHER VEHICLE IN FRONT OF IT. DLR HAS SEEN VEHICLE.
NHTSA complaint #849142 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL
WHILE SITTING IN TRAFFIC VEHICLE JUMPED OUT OF GEAR AND LUNGED FORWARD, REAR ENDING ANOTHER VEHICLE.
NHTSA complaint #849226 — an unverified report by a vehicle owner.