Mercury Grand Marquis 1992–1997
2nd generation (aero Panther) · Ford Panther
NHTSA data through 12 August 20261,579 complaints, 369 with mileageMethod
On this generation, failures are spread across the mileage range, with the middle half between 68,657 and 111,000 miles.
- Rest of the range
- Median
- 200,000+ — 11 complaints (3.0%), plotted separately
- 10%
- 47,520
- 25%
- 68,657
- Median
- 86,125
- 75%
- 111,000
- 90%
- 144,000
Show the numbers
| Mileage | Complaints | Share |
|---|---|---|
| 0–10,000 | 7 | 1.9% |
| 10,000–20,000 | 3 | 0.8% |
| 30,000–40,000 | 9 | 2.4% |
| 40,000–50,000 | 22 | 6.0% |
| 50,000–60,000 | 18 | 4.9% |
| 60,000–70,000 | 41 | 11.1% |
| 70,000–80,000 | 45 | 12.2% |
| 80,000–90,000 | 62 | 16.8% |
| 90,000–100,000 | 43 | 11.7% |
| 100,000–110,000 | 22 | 6.0% |
| 110,000–120,000 | 23 | 6.2% |
| 120,000–130,000 | 18 | 4.9% |
| 130,000–140,000 | 14 | 3.8% |
| 140,000–150,000 | 10 | 2.7% |
| 150,000–160,000 | 7 | 1.9% |
| 160,000–170,000 | 3 | 0.8% |
| 170,000–180,000 | 5 | 1.4% |
| 180,000–190,000 | 2 | 0.5% |
| 190,000–200,000 | 4 | 1.1% |
| 200,000+ | 11 | 3.0% |
What this can and cannot tell you: these are complaints owners chose to file, not a failure rate. Popular models accumulate more of them simply by being common. How this is built.
Owners filed 1,579 complaints with NHTSA about the 1992–1997 Mercury Grand Marquis, and 369 of them record the mileage at which the failure happened. That is enough to show not just what fails, but when.
Failures are spread across the mileage range, with the middle half between 68,657 and 111,000 miles. The median is 86,125 miles.
The most-reported areas are the engine and its cooling system (17.0% of complaints, typically around 82,000 miles), the hydraulic brake circuit (12.3% of complaints, typically around 77,000 miles), throttle and speed control (9.5% of complaints, typically around 116,000 miles).
What fails, and when
- Engine and its cooling system82,000median 81,830 miles, middle half 68,000 to 93,000
- Hydraulic brake circuit77,000median 76,688 miles, middle half 48,000 to 94,000
- Throttle and speed control116,000median 116,183 miles, middle half 82,000 to 144,000
- Electrical system110,000median 110,000 miles, middle half 78,000 to 140,000
- Transmission and driveline70,000median 70,000 miles, middle half 56,000 to 97,000
- Steering94,000median 94,362 miles, middle half 65,000 to 150,000
- Exterior lighting99,000median 99,000 miles, middle half 76,000 to 136,000
| System | Complaints | Share | Median | 25–75% |
|---|---|---|---|---|
| Engine and its cooling system | 268 | 17.0% | 82,000 | 68,000–93,000 |
| Hydraulic brake circuit | 194 | 12.3% | 77,000 | 48,000–94,000 |
| Throttle and speed control | 150 | 9.5% | 116,000 | 82,000–144,000 |
| Electrical system | 127 | 8.0% | 110,000 | 78,000–140,000 |
| Transmission and driveline | 121 | 7.7% | 70,000 | 56,000–97,000 |
| Steering | 109 | 6.9% | 94,000 | 65,000–150,000 |
| Exterior lighting | 108 | 6.8% | 99,000 | 76,000–136,000 |
| Fuel system | 104 | 6.6% | — | — |
| Visibility equipment | 79 | 5.0% | — | — |
| Suspension | 74 | 4.7% | 90,000 | 66,000–103,000 |
Which systems, and when
Complaints about this generation are not spread evenly across the vehicle, and the systems that generate the most of them do not all fail at the same point in a car's life. The median failure across all systems here is 86,125 miles; the figures below show which parts of the car run ahead of that and which run behind.
The engine and its cooling system accounts for 17.0% of complaints (268 reports, 144 of them with a mileage figure), with a median of 81,830 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 67,637 and 93,445 miles.
The hydraulic brake circuit accounts for 12.3% of complaints (194 reports, 37 of them with a mileage figure), with a median of 76,688 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 48,000 and 94,000 miles.
Throttle and speed control accounts for 9.5% of complaints (150 reports, 30 of them with a mileage figure), with a median of 116,183 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 82,000 and 144,000 miles.
The electrical system accounts for 8.0% of complaints (127 reports, 31 of them with a mileage figure), with a median of 110,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 78,000 and 140,000 miles.
The transmission and driveline accounts for 7.7% of complaints (121 reports, 11 of them with a mileage figure), with a median of 70,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 55,700 and 97,130 miles.
The steering accounts for 6.9% of complaints (109 reports, 18 of them with a mileage figure), with a median of 94,362 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 65,000 and 150,000 miles.
Differences between model years
Within this generation, complaint volume is not constant across model years. The 1997 model year drew the most — 370 complaints — while 1993 drew the fewest at 178. The median year sits at 252.
Recalls and what they cover
No recall campaigns covering this generation appear in NHTSA's post-2010 recall file. That is not the same as an absence of problems — recalls address safety defects specifically, and many of the complaints above concern faults that are expensive or annoying without meeting that threshold.
Reported severity
Of the 1,579 complaints filed against this generation, 106 reported a crash; 110 reported a fire; 196 reported an injury; 9 reported a fatality. Crash-involved reports represent 6.7% of the total.
These are owner-reported outcomes, not verified investigations, and they are not adjusted for how many of these vehicles are on the road. They are included because the distinction between a fault that strands a car and a fault that causes a collision is the one that matters most, and it is not visible in a complaint count alone.
What this means if you are buying one
For a buyer, failures on this generation are spread rather than concentrated: the middle half falls between 68,657 and 111,000 miles, with a median of 86,125. There is no single mileage threshold to watch, which means condition and maintenance records are more informative than the odometer.
On inspection, the engine and its cooling system and the hydraulic brake circuit are where this generation's reports concentrate, so those are the areas worth a specific look. The hydraulic brake circuit in particular shows a median failure mileage of 76,688, which gives a concrete number to compare against the odometer of any car you are considering.
None of this is a substitute for a pre-purchase inspection on the individual car. Aggregate patterns describe a population; the example in front of you has its own history.
Documented problems
Intake Manifold (composite) 1996–1997 within this generation
The plastic/composite intake manifold on the 4.6L 2-valve V8 develops fatigue cracks at the coolant crossover duct (splits across the front, behind the alternator), dumping coolant and risking overheating. Ford's formal recall (01M02) covered only police/fleet Crown Victorias; a December 2005 class-action settlement covered consumer 1996-2001 Grand Marquis, Town Car and Crown Victoria owners with reimbursement of about $735. Manifolds with an aluminum crossover superseded the all-plastic part from roughly 2002.
Rear Air Suspension 1992–1997 (so–equipped)
On air-suspension-equipped cars, rear air springs and the compressor leak and fail, leaving the car sagging at the rear; a common conversion-to-coil repair.
By model year
| Year | Complaints | With mileage |
|---|---|---|
| 1992 | 330 | 19 |
| 1993 | 178 | 17 |
| 1994 | 197 | 24 |
| 1995 | 222 | 50 |
| 1996 | 282 | 116 |
| 1997 | 370 | 143 |
What owners reported
Tl* the contact owns a 1992 Mercury Grand Marquis. The contact stated that while driving approximately 35 MPH the headlights and tail lights stopped illuminating. The contact stopped the vehicle.After continually switching the headlight switch on and off, the lights eventually illuminated. The vehicle was not taken to…
1992 · 120,000 miles · Exterior lighting
While driving at night, it was noticed that the instrument panel lights, tail lights, and parking lights were not lit even though the headlights brake lights and turn signals were working properly. The fuse for that circuit was checked and it was not blown. The dashboard was disassembled for removal of the headlight…
1992 · 129,000 miles · Exterior lighting
My 1992 Grand Marquis was taken in for what was a minor miss in the engine. The machanic said the computer showed a code 214. He replaced the coolant temperature sensor/switch (for computer) per the code in the car's computer. The car was returned to me and i drove it to work, about five minutes away from the…
1992 · 135,000 miles · Electrical system
My wife was delivering newspapers when the car started to pull to the left she thought she was getting a flat so she drove to the nearest gas station to get air she then got out inspected the tire and found it to be ok so she went back to throwing papers and the car smelled bad so she stoped and got out to look at it…
1992 · 140,000 miles · Problems owners could not categorise
Built from 369 NHTSA complaints with mileage · snapshot 2026-08-12 · open data · reproduce this page