Reliability, what owners report, and what it costs to keep.
AVOIR's read: a solid ownership case with specific caveats below.
Owners have filed 316 complaints with NHTSA about the 1991 Mercury Sable, and it carries 5 recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Power train | 97 | 31% |
| Engine and engine cooling | 54 | 17% |
| Steering | 24 | 8% |
| Service brakes | 23 | 7% |
| Structure | 16 | 5% |
| Electrical system | 13 | 4% |
| Suspension | 11 | 3% |
| Air bags | 11 | 3% |
| Visibility | 9 | 3% |
| Tires | 8 | 3% |
Verbatim from NHTSA complaint records, trimmed for length.
I HIT A SMALL POTHOLE AND THE STEERING WHEEL SUDDENLY MOVED TO A ONE O'CLOCK POSITION WHILE THE WHEELS WERE POINTING STRAIGHT AHEAD. MY ALIGNMENT SHOP INSPECTED THE CAR AND FOUND THAT THE CAUSE WAS A FAILURE OF THE PA
NHTSA complaint: Structure
DT*: THE CONTACT STATED WHILE DRIVING 55 MPH ON NORMAL ROAD CONDITIONS, THERE WAS A NOTICEABLE DELAY TO DISENGAGED THE SPEED CONTROL. THE BRAKE PEDAL HAD TO BE PUMPED SEVERAL TIMES UNTIL THE DRIVER REGAINED CONTROL OVE
NHTSA complaint: Vehicle speed control
WHILE DRIVING AT NIGHT THE VEHICLE'S HEADLIGHTS FAILED WITHOUT WARNING. THE DEALER STATES THE HEAD LAMP SENSOR SWITCH BURNED. A RECALL WAS ISSUED, HOWEVER THE VIN NUMBER IS OUTSIDE OF THE REMEDY SCOPE. *MR
NHTSA complaint: Exterior lighting
OTHER THAN THE REST OF MY PROBLEMS WITH THE ABOVE MY NEWEST COMPLAINT IS THAT I JUST FOUND OUT THAT DUE TO THE FACT FORD INSTALLED AN ALUMINIM PISTON WHERE THERE SHOULD HAVE BEEN A STEEL ONE WHICH IS THE ONLY ONE AVAILAB
NHTSA complaint: Steering
NORTHPORT FORD IN COMMACK, NY FAILED TO PROPERLY PERFORM SAFETY RECALL 98S36 FOR THE SUBFRAME ON MY 1991 MERCURY SABLE. THE SUBFRAME SUBSEQUENTLY BROKE FREE CAUSING DAMAGE TO MY MOTOR MOUNTS, TRANSMISSION AND STEERING CO
NHTSA complaint: Structure
CONSUMER STATES THAT THE VEHICLE BUSHINGS ARE MADE OF A VIBER MATERIAL THAT WEARS OUT, CAUSING THE VEHICLE TO STEER IMPROPERLY. *AK
NHTSA complaint: Steering
THE STEERING WHEEL LOCKED UP WHEN THE CONSUMER MADE LEFT TURNS. *NLM
NHTSA complaint: Steering
THE LEFT REAR SUB-FRAME MOUNT BROKE. THE RIGHT REAR SUB-FRAME MOUNT LOOKED LIKE IT WAS ABOUT TO BREAK. *NLM
NHTSA complaint: Structure
NHTSA lists 5 recall campaigns for the 1991 Mercury Sable. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
THE ARC WELDS ON THE SWAY BAR BRACKET, WHERE IT ATTACHES TO THE STRUT RESERVE TUBE, DID NOT FUSE PROPERLY.
Risk: OVER TIME, A PORTION OF THE BRACKET CAN TEAR AWAY FROM THE STRUT, FALLING INTO AND PUNCTURING THE TIRE OR CAUSING DAMAGE TO THE WHEEL, WHICH COULD RESULT IN AN ACCIDENT.
Fix: MONROE DEALERS WILL REPLACE THE STRUT FREE OF CHARGE.
VEHICLE DESCRIPTION: VEHICLES EQUIPPED WITH 3.8L ENGINES AND ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE FOLLOWING STATES: ALASKA, COLORADO, IOWA, IDAHO, ILLINOIS, INDIANA, KANSAS, MASSACHUSETTS, MAINE, MICHIGAN, MINNESOTA, MISSOURI, MONTANA, NORTH DAKOTA, NEBRASKA, NEW HAMPSHIRE, NEW YORK, OH
Risk: DRIVER CONTROL OF VEHICLE SPEED USING THE SPEED CONTROL SYSTEM OR THE ACCELERATOR CONTROL SYSTEM WOULD BE DIMINISHED INCREASING THE RISK OF A VEHICLE CRASH.
Fix: DEALERS WILL ADD A BOOT TO THE SPEED CONTROL CABLE.
CHILDREN CAN ACCIDENTALLY LOCK THEMSELVES IN THE FOOTWELL AREA OF THE REAR-FACING THIRD SEAT, OR IN THE STORAGE COMPARTMENT IN STATION WAGONS NOT EQUIPPED WITH AN OPTIONAL THIRD SEAT. ONCE THE COMPARTMENT IS CLOSED IT CANNOT BE OPENED FROM THE INSIDE.
Risk: THERE IS A DANGER OF AIR DEPRIVATION, HYPERTHERMIA,AND/OR PANIC RESPONSE TO A CHILD WHO HAS LOCKED HIMSELF OR HERSELF INTO THECOMPARTMENT, WITH THE POSSIBILITY OF ASPHYXIATION.
Fix: REPLACE THE SELF-LATCHING ASSEMBLY CURRENTLY USED IN THE REAR STORAGE COMPARTMENT WITH A LATCH ASSEMBLY THAT CAN ONLY BE CLOSED WITH A KEY.
VEHICLE DESCRIPTION: PASSENGER VEHICLES ORIGINALLY SOLD OR CURRENTLY REGISTERED IN CONNECTICUT, DELAWARE, DISTRICT OF COLUMBIA, ILLINOIS, INDIANA, IOWA, KANSAS, KENTUCKY, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEBRASKA, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANI
Risk: IF BOTH REAR CORNERS DROP, STEERING WOULD BECOME SUDDENLY VERY DIFFICULT, AFFECTING VEHICLE CONTROL AND INCREASING THE RISK OF A CRASH.
Fix: DEALERS WILL INSTALL SUBFRAME REAR MOUNT BOLTS, REINFORCEMENT PLATES, AND PLATE NUTS.
| Reliability raw | 83 | excellent |
|---|---|---|
| Longevity est. | 79 | good |
| Maintenance | 78 | good |
| Depreciation | 60 | average |
| Performance | 54 | average |
| Efficiency | 40 | below average |
Percentile ranks against other midsize & large cars in the catalog.
What stands behind each score for this car:
Owners have filed 316 complaints with NHTSA for this model-year, and power train is the most reported area with 97 of them (31%). There are 5 recalls on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 83/100 (excellent) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 79/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 1991 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: worth a look, because a solid ownership case with specific caveats below. Its overall ownership score is 71/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.