1991 Mercury Sable Problems

What owners report

Owners of this model year report transmission trouble most often, describing units that slip out of gear, drop into neutral, or stop driving, sometimes after multiple rebuilds or replacements. A second frequent theme is cooling-system and head-gasket work, with complaints about overheating, coolant loss, and engine damage; steering and subframe-mount complaints also appear, often tied to corrosion in states that salt their roads.

1. 1
   Transmission and drivetrain

   Transmission slips out of gear or stops driving

   • 82 complaints (37%)
   • typically at 6.1 yrs old
   • 1 mention a crash, fire or injury
   • filed 1995–2001

   Complaints describe the transaxle slipping out of gear, dropping into neutral, or failing to move the car at all, sometimes while driving at speed. Several owners say the transmission was rebuilt or replaced more than once and the behavior returned. Some report grinding or clicking noises and fluid leaking before failure, and dealers are described as either replacing the unit or saying they could not find a problem. Reported across a wide mileage range, from about 40,000 miles up to 130,000 miles, with failures described as sudden in some cases.

   What to check: Ask for transmission service records and whether the unit has been rebuilt or replaced. Test drive at highway speed and check for delayed engagement, slipping, or a flare between gears, and check fluid level and color.

   2 excerpts from owner complaints in NHTSA records

   “I know there have been a lot of transmissions going out on the sables, but when mine went out it jerked with so much force that I could barely hold the steering wheel.”

   NHTSA complaint #717819, filed 2000-01

   “The transmission was going in to neutral at different speeds. The first time the trasnmission was rebuilt was around 40,000 miles. Then 4 months ago the transmisson was rebuilt again, at around 85,000. The transmission is still going into neutral, while driving at speeds of 25-55 MPH or more. When I take the car back to the dealer where it was originally purchased; they say they can find nothing wrong with the transmission. …”

   NHTSA complaint #704001, filed 1999-03
2. 2
   Body and structure

   Subframe mount corrosion and separation

   • 15 complaints (7%)
   • median 93,500 mi at 15.2 yrs old (2 state mileage, few)
   • filed 1997–2008

   Complaints describe the rear subframe or cradle mount bolts pulling through corroded sheet metal, in some cases letting the engine cradle drop and affecting steering. Owners often say the car was outside the recall by VIN or that a recall repair had already been done and the mounts broke again. Some also report the liftgate or hatch striker area cracking so the gate would not close. Mostly reported on cars driven in states that salt roads in winter; mileage varies widely, and some complaints come after a prior recall repair.

   Recall 98V323000

   What to check: Ask whether recall 98V323000 (or the equivalent subframe service action) was completed and get documentation. Have the rear subframe mounts and cradle bolts inspected on a lift for corrosion or cracking, especially on a car from a salt-belt state.

   2 excerpts from owner complaints in NHTSA records

   “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 passenger side sub-frame mounting bolt anchor. The local dealer said my car is not included in the recall (98s36) I demand an answer as why my car is not included.”

   NHTSA complaint #10233972, filed 2008-07, 57,000 miles

   “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 components. The vehicle was towed to the closest ford dealer in patchogue ny. Ford agreed to reinstate the recall for the dealer to repair my vehicle. The dealer called ford with the price of the subsequent damage and ford withdrew the offer to repair. They wanted to buy the vehicle back at a price they decided on. …”

   NHTSA complaint #10028532, filed 2003-07, 130,000 miles
3. 3
   Steering

   Steering loss from rack and pinion or tie rod

   • 22 complaints (10%)
   • typically at 6.2 yrs old
   • 1 mention a crash, fire or injury
   • filed 1995–2003

   Owners report sudden loss of steering assist or the wheel locking up, with some saying the rack and pinion failed completely or an inner tie rod broke. In one account a broken tie rod cut a fuel line. Dealers and shops are described as replacing the rack and pinion and related lines after the failure. Mileage is not given in these complaints; failures are described as sudden, during turns or at ordinary driving speeds.

   What to check: Have the steering rack, tie rods, and power steering lines and hoses inspected for play, leaks, or corrosion before purchase, and check that the steering returns smoothly with no binding or noise.

   2 excerpts from owner complaints in NHTSA records

   “I was very alarmed when my car lost all steering capability. Why would something just brake like that. I had 4 children in the car with me and had to figure out how to get back to my home town which was 45 minutes away. I feel that others are at risk if my car could do that to me with no prior warning. If I would have been on the highway traveling at the speed limit we probably would of been in a major accident. I feel a recall for the rack and pinion needs to be investigated. …”

   NHTSA complaint #704300, filed 1999-03

   “While driving at any speed steering wheel locks up, and the vehicle is hard to turn. Vehicle will go any other way besides the way consumer is turning the steering wheel. Also, and there is a leakage within the engine head gasket and transmission, and smoke is coming from the engine compartment.”

   NHTSA complaint #847888, filed 1999-09
4. 4
   Engine cooling

   Overheating and head gasket failure

   • 13 complaints (6%)
   • typically at 9.5 yrs old
   • filed 1997–2002

   Owners describe the engine overheating while driving, coolant loss, and being told the head gasket had failed; in some accounts coolant mixed with the oil and damaged the bearings. Several complaints note that similar engines in later model years were covered by a manufacturer program while this year was not. Repairs described include head gasket replacement, oxygen sensors, and in some cases engine replacement. Mileage is not stated in most of these complaints; failures are described during ordinary driving, sometimes with no warning.

   What to check: Check coolant level and condition, look for milky or foamy oil, and ask whether the head gaskets have been replaced. Have a mechanic do a cooling-system pressure test and check for combustion gases in the coolant before buying.

   2 excerpts from owner complaints in NHTSA records

   “Mercury/ford told me 4-19-00 that only '93 & '94 3.8 liter engines with headgasket failures would be fixed if less than 100,000 miles. I had planned to keep the car for 2-3 more years based on low usage as I commute to downtown st. Louis via bus--but now the car doesn't appear worth fixing.”

   NHTSA complaint #721684, filed 2000-04

   “Replaced head gasket and o2 sensors. This is the same flawed engine design as those that ford issued an extended warranty. For some unknown reason ford has not included the '91 engines.”

   NHTSA complaint #734502, filed 2000-10
5. 5
   Electrical system

   Radiator fan seizing and engine-bay fires

   • 12 complaints (5%)
   • typically at 8.1 yrs old
   • 8 mention a crash, fire or injury
   • filed 1996–2002

   Complaints describe the radiator cooling fan seizing, with melted wiring and flames from the fan area, and in another case smoke and fire from under the hood shortly after starting. Owners report the underhood plastic and fan shroud burning. Another complaint describes total power loss traced to a corroded ground connector serving engine and instrument components. Mileage is not stated in these complaints; the events are described as occurring while driving or right after starting.

   What to check: Ask whether the cooling fan motor and its wiring have been replaced, and have the fan checked for free rotation and the harness inspected for melted or brittle insulation. Also have the main ground connections cleaned and checked.

   2 excerpts from owner complaints in NHTSA records

   “Vehicle was on the entrance ramp to a major highway when engine power was suddenly lost. Car was restarted after a ten minute cool down. Drove for another 10 minutes when engine power was lost for a second time. Car was unable to start after the second failure. Root cause of the failure was a corroded ground connect, itentified as c112 (ford #). …”

   NHTSA complaint #731826, filed 2000-09

   “Was driving approximately 10mph when a burning odor was noticed. Stopped the vehicle & lifted the hood. Flames shot out from near the engine area where fan was located. The plastic covering fan and radiator was burning, will be taking vehicle to dealership.”

   NHTSA complaint #835676, filed 1999-04

Buying note. This model year draws the most complaints about the transmission, so service records and a thorough test drive matter more than cosmetics. Because subframe corrosion and head gasket work come up repeatedly, have a shop inspect the underside and cooling system and confirm in writing whether the subframe recall was performed on the specific car.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.