VehicleVerdict

1984 Mercury MARQUIS problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 23 complaints on file for the 1984 Mercury MARQUIS — too few to judge reliability from owner reports alone — but 2 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.

23

NHTSA complaints

2

Recalls

3

Investigations

1

Crash-involved

1

Fires reported

0

Injuries

0

Deaths

—

NCAP overall

How does 1984 compare to other MARQUIS years?

MARQUIS NHTSA complaints by model year, 1984 highlighted62 complaints1973: 0 complaints1974: 0 complaints1977: 1 complaints1979: 0 complaints1981: 0 complaints1982: 1 complaints1983: 1 complaints1984: 23 complaints1985: 6 complaints1986: 4 complaints1987: 5 complaints1988: 14 complaints1989: 11 complaints1990: 8 complaints1991: 10 complaints1992: 30 complaints1993: 25 complaints1994: 44 complaints1995: 26 complaints1996: 40 complaints1997: 62 complaints1998: 40 complaints1999: 31 complaints2000: 24 complaints2001: 27 complaints2002: 11 complaints2003: 42 complaints2004: 15 complaints
MARQUIS NHTSA complaints by model year, 1984 highlighted. Red bars are years to avoid.

See all MARQUIS years to avoid →

What are the most common 1984 Mercury MARQUIS problems?

ComponentComplaintsShare
Electrical System626%
Transmission417%
Fuel System313%
Brakes313%
Engine313%
Body & Structure29%
Other14%
Lighting14%

Does the 1984 Mercury MARQUIS have recalls?

2 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

07E064000Fuel SystemAugust 27, 2007 · 34,000 units

Defect

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 VEHICLES LISTED ABOVE. THE FUEL PUMP DIAPHRAGM IN CERTAIN PRODUCTION RUNS MAY HAVE BEEN IMPROPERLY INSTALLED OR INADEQUATELY TESTED WHICH MAY CAUSE THE FUEL PUMP TO LEAK.

Consequence

A LEAKING FUEL PUMP COULD CREATE A VEHICLE FIRE HAZARD.

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.

83V134000Seat BeltsDecember 20, 1983 · 530,000 units

Defect

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 ANCHORAGES".

Remedy

DEALERS WILL INSTALL NEW ATTACHING HARDWARE TO IMPROVE THE STRENGTH OF THE MOUNTING.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“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.”

Complaint filed with NHTSA · Electrical System · September 2, 2000

“CONSUMER PARK CAR DRIVE WAY CAR WAS RUN IN PARK IT CAME OUT OF PARK WENT INTO REVERSE WENT DOWN HILL AND HIT AN ENBANKMENT. TT”

Complaint filed with NHTSA · Transmission · April 17, 1995 · crash

“RADIATOR/RADIATOR HOSE FAILED, RESULTING INN AN OIL LEAK; ALSO REPLACED BELTS/BRAKE PADS, SHOES, DRUMS AND WHEEL CYLINDERS/ EXHAUST SYSTEM/ALTERNATOR/HEADLAMPS. *AK”

Complaint filed with NHTSA · Engine

“RADIATOR/RADIATOR HOSE FAILED, RESULTING INN AN OIL LEAK; ALSO REPLACED BELTS/BRAKE PADS, SHOES, DRUMS AND WHEEL CYLINDERS/ EXHAUST SYSTEM/ALTERNATOR/HEADLAMPS. *AK”

Complaint filed with NHTSA · Brakes

1984 Mercury MARQUIS — common questions

Is the 1984 Mercury MARQUIS reliable?

The record is thin — 23 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 2 recalls should be verified as completed.

What are the most common 1984 MARQUIS problems?

According to NHTSA complaint data, the leading problem areas are electrical system (6 complaints), transmission (4 complaints), engine (3 complaints).

Does the 1984 Mercury MARQUIS have recalls?

Yes — NHTSA lists 2 recall campaigns affecting the 1984 Mercury MARQUIS. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Is the 1984 Mercury MARQUIS under NHTSA investigation?

NHTSA opened 3 investigations into this model year; all are now closed.

Which Mercury MARQUIS years should you avoid?

Based on complaint rates and open investigations, the MARQUIS years to avoid are 1997, 1994, 2003, 1998, 1996, 1999, 1992. The cleanest record among MARQUIS years belongs to 1981.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.