1984 Mercury Marquis Problems
- Complaints
- 10filed with NHTSA
- Median mileage
- 112,160miles, 1 complaints with mileage
- Recalls
- 1campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
- NHTSA crash rating
- —overall rating starts with 2011 models
- EPA fuel economy
- 19 mpgcombined, 2.3L 4-cyl · 17 city / 22 hwy
Sources: NHTSA records for the 1984 Mercury Marquis (complaints, recalls, investigations), EPA fuel economy. Report an error
NHTSA recorded 10 consumer complaints for the 1984 Mercury Marquis. The part named most often is electrical system, with 5 complaints (50% of the total), followed by fuel system (3) and transmission and drivetrain (3). 1 of the complaints include a mileage, and 0% of those were filed for vehicles with under 50,000 miles; the median is 112,160 miles. Of all complaints, 1 involved a crash, 1 a fire, according to the filers. NHTSA lists 1 recall campaign and 0 technical service bulletins for this model year.
This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Electrical system5 50%
- Fuel system3 30%
- Body and structure2 20%
- Brakes1 10%
- Engine cooling1 10%
- Equipment1 10%
- Exterior lighting1 10%
Example complaints
Electrical system: “Vehicle lost all electrical power while going down the highway at 65 MPH. Pulled over and after several attemps the car started, but when you put it into gear it would lose electrical power. After investigating, I found the ignition wiring separated from its housing.”
NHTSA complaint #730414, filed 2000-09Mileage when problems were reported
0% of the 1 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 112,160 and 112,160 miles.
Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Fuel economy and running cost
EPA ratings for each 1984 Mercury Marquis version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).
| Version | Engine | Transmission | City | Hwy | Comb. | Fuel / yr |
|---|---|---|---|---|---|---|
| Marquis | 2.3L 4-cyl | 3-speed automatic | 18 | 22 | 20 | $3,350 |
| Marquis | 2.3L 4-cyl | 3-speed automatic | 17 | 22 | 19 | $3,550 |
| Marquis | 3.8L 6-cyl | 4-speed automatic | 17 | 23 | 19 | $3,550 |
| Marquis | 3.8L 6-cyl | 4-speed automatic | 17 | 22 | 19 | $3,550 |
| Marquis | 3.8L 6-cyl | 3-speed automatic | 16 | 20 | 18 | $3,700 |
| Marquis | 3.8L 6-cyl | 3-speed automatic | 16 | 20 | 17 | $3,950 |
| Marquis | 5.0L 8-cyl | 4-speed automatic | 15 | 22 | 17 | $3,950 |
| Marquis | 5.0L 8-cyl | 4-speed automatic | 14 | 20 | 16 | $4,200 |
| Marquis Wagon | 3.8L 6-cyl | 4-speed automatic | 17 | 23 | 19 | $3,550 |
| Marquis Wagon | 3.8L 6-cyl | 4-speed automatic | 17 | 22 | 19 | $3,550 |
| Marquis Wagon | 3.8L 6-cyl | 3-speed automatic | 16 | 20 | 18 | $3,700 |
| Marquis Wagon | 3.8L 6-cyl | 3-speed automatic | 16 | 20 | 17 | $3,950 |
Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.
Recalls and investigations
- 83V134000Dec 20, 1983Seat belts › Front › AnchorageCovers: Mercury Marquis 1984, Ford Escort 1984, Bronco II 1984 +15 more
The bolts that attach the d-shaped ring for the shoulder belt are inadequately supported by the material in which they are mounted. The attachment does not comply with the requirements of federal motor vehicle safety standard no. 210, "seat belt assembly…
Recall details for the 1984 Mercury Marquis → · Check a VIN at nhtsa.gov/recalls
Technical service bulletins
No technical service bulletins are on record for the 1984 Mercury Marquis.
Other model years of the Mercury Marquis
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2004 | 12 | 88,408 | 0 | — | — | — | Not enough data |
| 2003 | 33 | 40,255 | 0 | — | — | Not compared (before 2008) | Stable |
| 2002 | 11 | 50,000 | 0 | — | — | — | Not enough data |
| 2001 | 26 | 57,902 | 0 | — | — | Not compared (before 2008) | Stable |
| 2000 | 23 | 51,000 | 0 | — | — | — | Stable |
| 1999 | 24 | 66,552 | 0 | — | — | — | Stable |
| 1998 | 29 | 75,000 | 0 | — | — | Not compared (before 2008) | Stable |
| 1997 | 53 | 63,000 | 1 | — | — | Not compared (before 2008) | Stable |
| 1996 | 31 | 91,000 | 0 | — | — | Not compared (before 2008) | Stable |
| 1995 | 20 | — | 0 | — | — | — | Stable |
| 1994 | 30 | 100,000 | 0 | — | — | Not compared (before 2008) | Stable |
| 1993 | 23 | 38,000 | 0 | — | — | — | Stable |
| 1992 | 24 | — | 0 | — | — | — | Stable |
| 1991 | 9 | — | 0 | — | — | — | Not enough data |
| 1990 | 6 | — | 0 | — | — | — | Not enough data |
| 1989 | 10 | — | 0 | — | — | — | Not enough data |
| 1988 | 9 | — | 0 | — | — | — | Not enough data |
| 1985 | 5 | — | 1 | — | 18 | — | Not enough data |
| 1984 | 10 | 112,160 | 1 | — | 19 | — | Not enough data |
All Mercury Marquis model years · Best and worst years by complaints
Frequently asked questions
How many NHTSA complaints does the 1984 Mercury Marquis have?
NHTSA recorded 10 consumer complaints for the 1984 Mercury Marquis as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 1984 Mercury Marquis is reported most often?
Electrical system is named most often, in 5 complaints (50% of the total), followed by fuel system with 3.
Has the 1984 Mercury Marquis been recalled?
NHTSA lists 1 recall campaign for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
What gas mileage does the 1984 Mercury Marquis get?
The EPA rates the 1984 Mercury Marquis (Marquis, 2.3L 4-cyl) at 19 mpg combined, 17 city and 22 highway, with an estimated annual fuel cost of $3,550 at 15,000 miles a year. Other engine and drive versions are rated differently.
At what mileage are problems with the 1984 Mercury Marquis reported?
Among the 1 complaints that include a mileage, the median is 112,160 miles and the middle half falls between 112,160 and 112,160 miles; 0% were filed for vehicles with under 50,000 miles.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.