FaultScore

Mercury Topaz acceleration problems

34 of the 581 complaints filed about the Mercury Topaz are about the throttle and cruise control — 6% of everything owners reported. The worst model year for it is 1994.

34

Complaints

6%

Share of all complaints

1

Crashes

0

Fires

Acceleration & Cruise Control complaints by model year

1985 Topaz 1 2.9%
1989 Topaz 6 17.6%
1990 Topaz 6 17.6%
1991 Topaz 4 11.8%
1992 Topaz 3 8.8%
1993 Topaz 3 8.8%

Median failure at 34,000 miles

1994 Topaz 10 29.4%

Median failure at 47,928 miles

1995 Topaz 1 2.9%

What owners said

1993 Mercury Topaz at 34,000 miles Glendale, CA

VEHICLE SPEED CONTROL

THERE IS A SPEED CONTROL ISSUE. INTERMITTENTLY, THE CAR WILL BECOME LOCKED AT 2 RPM WHILE STILL ACCELERATING TO 65+ MPH. THE DRIVING IS NON-SPECIFIC; I COULD BE IDLING, ON THE FREEWAY OR ON SURFACE STREETS. ALTHOUGH I REMOVE MY FOOT FROM THE ACCELERATOR, THE CAR CONTINUES TO SPEED UP. IMMEDIATELY TURNING OFF THE ENGINE DOES NOT ELIMINATE THE ISSUE EITHER. ONCE THE CAR IS TURNED ON AGAIN, IT LOCKS AT 4 RPM WHILE IN PARK. THE ISSUE MAY TAKE UP TO 30MINS TO SUBSIDE. LUCKILY, THE BRAKES HAVE YET TO FAIL WHEN THE CAR VOLUNTARILY ACCELERATES (ALTHOUGH THIS DOES WEAR ON THE BRAKES LIKE CRAZY).

NHTSA complaint #10451503 — an unverified report by a vehicle owner.

1994 Mercury Topaz at 47,928 miles Union City, GA

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

THE TRANSMISSION LOCKED UP, WHICH CAUSED THE TIRES TO LOCK UP. *JB THE GAS PEDAL WAS HARD. THE VEHICLE WILL NOT ACCELERATE. THE MAIN CONTROL THROTTLE VALVE WAS REPLACED. SCC

NHTSA complaint #10014805 — an unverified report by a vehicle owner.

1994 Mercury Topaz Pomona, CA

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

GAS PEDAL STICKS UP, TROUBLE MAKING GAS PEDAL TO GIVE THE CAR GAS

NHTSA complaint #734671 — an unverified report by a vehicle owner.

1994 Mercury Topaz Lubbock, TX

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

THE ACCELERATOR PEDAL STICKS INTERMITTENTLY. *MJS

NHTSA complaint #552852 — an unverified report by a vehicle owner.

1994 Mercury Topaz Lubbock, TX

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

THE ACCELERATOR PEDAL STICKS INTERMITTENTLY. *MJS

NHTSA complaint #552852 — an unverified report by a vehicle owner.

1989 Mercury Topaz Portsmouth, VA

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

VEHICLE WILL NOT ACCELERATE PAST FIVE MPH WITH APPLICATION OF GAS PEDAL. DEALER STATED VEHCLE NEEDED NEW TRANSMISSION. PLEASE PROVIDE FURTHER INFORMATION.

NHTSA complaint #861008 — an unverified report by a vehicle owner.

1990 Mercury Topaz Lancaster, MN

VEHICLE SPEED CONTROL

IDLES TO FAST ,BEYOND HIGH IDLE ,UNCONTROLABLE SPEED WHILE DRIVING

NHTSA complaint #701668 — an unverified report by a vehicle owner.

1991 Mercury Topaz Minneapolis, MN

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

WHEN STARTING THE VEHICLE UP AND APPLYING THE ACCELERATOR, THE THROTTLE KEEPS GETTING STUCK.

NHTSA complaint #849235 — an unverified report by a vehicle owner.

1989 Mercury Topaz Steubenville, OH

VEHICLE SPEED CONTROL

ONLY IN TWO OCCURRENCES VEHICLE SURGES UNEXPECTEDLY WHICH ALMOST CAUSED AN ACCIDENT. DEALER CANNOT DETERMINE THE PROBLEM.

NHTSA complaint #834752 — an unverified report by a vehicle owner.

1992 Mercury Topaz Germantown, MD Crash

VEHICLE SPEED CONTROL

CRUISE CONTROL WAS SET AT 40 MPH GOT STUCK AND WOULD NOT RELEASE EVEN BY HITTING THE CRUISE CONTROL BUTTON OR APPLYING BRAKES,WHICH RESULTED IN AN ACCIDENT.

NHTSA complaint #835164 — an unverified report by a vehicle owner.

1991 Mercury Topaz Brockton, MA

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

ACCELERATOR PEDAL STICKS, CAUSING THE ENGINE TO RACE AND BRAKES TO FAIL.

NHTSA complaint #825386 — an unverified report by a vehicle owner.

1990 Mercury Topaz Cedar City, UT

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

WHENEVER ENGINE IS COLD ACCELERATOR PEDAL GETS STUCK. NEEDS TO PRESS VERY HARD IN ORDER FOR IT TO CATCH. TOOK TO DEALER & MECHANIC COULD NOT FIND THE PROBLEM WHICH OCCURS FREQUENTLY, BUT INTERMITTENTLY.

NHTSA complaint #822771 — an unverified report by a vehicle owner.

1990 Mercury Topaz Cedar City, UT

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

WHENEVER ENGINE I S COLD, TE ACCELERATOR PEDAL GETS STUCK. NEEDS TO PRESS VERY HARD TO GET IT TO CATCH. TOOK TO DEALER & MECHANIC COULD NOT LOCATE PROBLEM. AT BEST IT'S FREQUENT AND INTERMITTENT.

NHTSA complaint #822774 — an unverified report by a vehicle owner.

1994 Mercury Topaz Salem, VA

VEHICLE SPEED CONTROL

THROTTLE POSITION SENSOR FAILED.

NHTSA complaint #515344 — an unverified report by a vehicle owner.

1994 Mercury Topaz Salem, VA

VEHICLE SPEED CONTROL

SPEEDOMETER FAILED.

NHTSA complaint #515344 — an unverified report by a vehicle owner.

1995 Mercury Topaz Salem, VA

VEHICLE SPEED CONTROL

THROTTLE POSITION SENSOR FAILURE.

NHTSA complaint #515570 — an unverified report by a vehicle owner.

1989 Mercury Topaz Orland, CA

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

WHEN AT A STOP LIGHT AND STARTED TO GO BY PRESSING THE ACCELERATOR, CAR STALLED.

NHTSA complaint #807832 — an unverified report by a vehicle owner.

1991 Mercury Topaz Lancaster, OH

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

FAILURE OF THE GAS PEDAL, IN COLD WEATHER CONDITIONS THE GAS PEDAL STICKS TO THE FLOOR.

NHTSA complaint #805114 — an unverified report by a vehicle owner.

1989 Mercury Topaz Richmond, IN

VEHICLE SPEED CONTROL

THE DEALERSHIP WILL NOT FIX THE CRUISE CONTROL THAT THE IGNITION SWITCH BURNED OUT, ALSO THE RADIO LIGHT.

NHTSA complaint #802628 — an unverified report by a vehicle owner.

1989 Mercury Topaz Cedar Hill, TX

VEHICLE SPEED CONTROL

CRUISE CONTROL FAILED.

NHTSA complaint #507741 — an unverified report by a vehicle owner.

Other Mercury Topaz problems