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EnginePart report

1990 Mercury Grand Marquis Engine Problems

Complaints
1about this part
Share
2%of 56 total for the year
Median mileage
40,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine of the 1990 Mercury Grand Marquis, 2% of the 56 complaints for this model year. Where a mileage was given, the median is 40,000 miles.

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 occasionally surges when placed into reverse. The engine immediately races and the car even convulses. The only thing that stops it is to turn off the engine. This is my mom's car and she rarely drives it.”

NHTSA complaint #10745543, filed 2015-08, 40,000 miles

Engine: other model years

YearComplaintsShare of year
201014%
200928%
200845%
200744%
200686%
200551%
200441%
200351%
200223%
200196%
200085%
199974%
199832%
199721%
199610%
199411%
199012%
198515%

Other parts of the 1990 Mercury Grand Marquis

Electrical system
13 complaints
Air bags
9 complaints
Vehicle speed control
9 complaints
Brakes
8 complaints
Transmission and drivetrain
6 complaints
Engine cooling
3 complaints
Body and structure
3 complaints
Fuel system
2 complaints
Other or unknown
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Seats
1 complaints
Tires
1 complaints

← All problems reported for the 1990 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