While driving on the highway with cruise control set stepped on the brakes, but they didn't deactivate the speed control. Turned vehicle off, and then back on, and that didn't help. Had to open the hood to disconnect the switch. Contacted dealer.
1991 Mercury Grand Marquis acceleration problems
12 complaints (15% of all complaints for this car). 7 crashes reported.
- owner complaints
- 12
- of this car's complaints
- 15%
- crashes
- 7
- recalls
- 0
Which part fails
- Cables3
- Linkages1
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
Mercury Grand Marquis acceleration problems in other years
Specific symptoms reported on the 1991 Mercury Grand Marquis acceleration
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
What 1991 Mercury Grand Marquis owners say
Most recent owner complaints, unedited.
Driver turned on ignition ,put transmission in reverse with foot still on brakes , the vehicle took off in reverse, hitting 4 vehicles, and then went forward hitting a building.
While parked on an incline vehicle accelerated into reverse, resulting in a minor collision.
Several accidents occured, due to sudden acceleration.
Accelerator cable stuck on two occasions causing loss of control.
Vehicle was parked and turned the vehicle on, shifted gear into drive, had foot on the brake pedal and the car lunged forward and hit a parked car. Nobody was injured.
Vehicle experienced sudden acceleration resulting in an accident.
Cable on the accelerator jammed causing unwanted acceleration on several occasions, last incident LED to minor accident and injury to consumer.
Sudden acceleration.
During cold startup shifted into reverse vehicle surged rearward. When placing selector gear into neutral slipped to drive gear, surged forward. Ran into house, and wheels still spinning with both feet on braking pedal.
Questions about the 1991 Mercury Grand Marquis acceleration
Does the 1991 Mercury Grand Marquis have acceleration problems?
Owners have filed 12 complaints about the acceleration of the 1991 Mercury Grand Marquis, 15% of all its complaints.
At what mileage do 1991 Mercury Grand Marquis acceleration problems start?
Not enough complaints include the mileage to tell.
Was there a recall on the 1991 Mercury Grand Marquis acceleration?
There is no recall for this problem on this model year.
What year does the Mercury Grand Marquis have the most acceleration problems?
The Mercury Grand Marquis model years with the most acceleration complaints are 2005 (39 complaints), 2006 (37 complaints) and 1994 (33 complaints).
Other 1991 Mercury Grand Marquis problems
Electrical 21Brakes 14Airbags 11Engine 10Transmission 8Body 4Fuel system 4Lights 3Visibility 3Locks 2Suspension 2Seats 1Steering 1Tires 1
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