1984 Mercury Grand Marquis
Only 15 complaints on file — too few for a fair verdict.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
Only 15 complaints on file — too few for a fair verdict. The data below is complete but unranked.
- Complaints
- 15
- Recalls
- 2
- Investigations
- 1
- Top problem
- —
Too few to rank
Campaigns on file for 1984
Opened by NHTSA
Not enough data
Complaints per year
1984: 15 complaints
View as data table
| Year | Complaints |
|---|---|
| 1980 | 0 |
| 1981 | 2 |
| 1982 | 3 |
| 1983 | 7 |
| 1984 | 15 |
| 1985 | 21 |
| 1986 | 21 |
| 1987 | 47 |
| 1988 | 73 |
| 1989 | 58 |
| 1990 | 58 |
| 1991 | 82 |
| 1992 | 260 |
| 1993 | 147 |
| 1994 | 161 |
| 1995 | 179 |
| 1996 | 239 |
| 1997 | 316 |
| 1998 | 143 |
| 1999 | 164 |
| 2000 | 162 |
| 2001 | 157 |
| 2002 | 78 |
| 2003 | 362 |
| 2004 | 347 |
| 2005 | 487 |
| 2006 | 143 |
| 2007 | 96 |
| 2008 | 80 |
| 2009 | 26 |
| 2010 | 25 |
| 2011 | 9 |
Known problem areas
Only 15 complaints on file for this model year — too few to rank by share. Raw counts only, below.
Engine and engine cooling
5 of 15 total reports mention: engine and engine cooling, most commonly citing gas recirculation valve (egr valve) and gasoline.
Electrical system
5 of 15 total reports mention: electrical system, most commonly citing front underhood and switch.
Show complaint excerpts
Parked vehicle, smoke started to come from underneath the hood. Resulting in vehicle fire by firewall near the motor.
NHTSA ODI report, 1996-04-18
Vehicle speed control
4 of 15 total reports mention: vehicle speed control, most commonly citing accelerator pedal.
Show complaint excerpts
Accelerator stuck while attempting to back up, causing sudden acceleration/loss of control/accident.
NHTSA ODI report, 1995-04-27
Structure
2 of 15 total reports mention: structure, most commonly citing body.
Fuel system, gasoline
2 of 15 total reports mention: fuel system, gasoline, most commonly citing tank assembly and fuel injection system.
Safety timeline
2 recalls · 1 investigation · oldest first
To check one car, enter its VIN on the NHTSA recall page. Check a VIN →
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R
1983-12-22Seat belts83V134000 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…
Remedy: Dealers will install new attaching hardware to improve the strength of the mounting.
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I
1991-09-11Preliminary evaluationClosed 1992-01-15 Brake line punctures
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R
2007-10-15Fuel system, gasoline07E064000 Certain federal-mogul aftermarket fuel pumps sold under the brand names of carter, accuflow, napa, truflow, parts depo, and parts master, shipped between August 2006 and July 2007 for use on the…
Remedy: Federal-mogul will notify owners and replace the defective fuel pumps free of charge. The recall began on October 15, 2007. Owners can contact federal-mogul at 248-354-7700.
Buy-smart checklist
1984 Mercury Grand Marquis — pre-purchase inspection
Inspect
- Engine and engine cooling: 5 reports on file for this year.
- Electrical system: 5 reports on file for this year.
- Vehicle speed control: 4 reports on file for this year.
Verify these recalls were completed
- Recall 83V134000 · Seat belts
- Recall 07E064000 · Fuel system, gasoline
Other years of this model
See all years ranked →FAQ
- Is the 1984 Mercury Grand Marquis reliable?
- There isn't enough NHTSA complaint data on file yet to give this model year a verdict.
- What are the most common problems with the 1984 Mercury Grand Marquis?
- The most-reported component is engine and engine cooling, accounting for 33% of complaints on file.
- How many recalls does the 1984 Mercury Grand Marquis have?
- 2 recalls on file for this model year.
Data updated 2026-10-31 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.