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Electrical systemPart report

1984 Mercury Grand Marquis Electrical system Problems

Complaints
5about this part
Share
33%of 15 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the electrical system of the 1984 Mercury Grand Marquis, 33% of the 15 complaints for this model year. 3 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Engine failed to start after vehicle parked overnight, cause unknown, not checked by dealer, sears checked battery/alternator, no problem. Vehicle available for inspection.”

NHTSA complaint #816383, filed 1997-09

Electrical system: other model years

YearComplaintsShare of year
2011333%
2010312%
2009415%
2008911%
200711%
200686%
20057515%
20044011%
20035114%
20021013%
2001138%
20001710%
1999159%
19981510%
1997124%
1996167%
19952011%
1994106%
19932014%
19924116%
19912126%
19901323%
19891628%
19883649%
19871944%
19861152%
19851152%
1984533%
1983229%

Other parts of the 1984 Mercury Grand Marquis

Engine cooling
5 complaints
Vehicle speed control
4 complaints
Fuel system
2 complaints
Other or unknown
2 complaints
Body and structure
2 complaints
Suspension
1 complaints

← All problems reported for the 1984 Mercury Grand Marquis

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.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology