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Research · Large Cars

1999 Mercury Grand MarquisRecalls, problems, MPG & safety

NHTSA lists 5 safety recalls and 197 owner complaints for the 1999 Mercury Grand Marquis. Most complaints involve engine and engine cooling (29) and exterior lighting (20). The EPA rates it 18 mpg combined.

Check a VINAdd to my garage
Combined MPG
18mpg
EPA · 1 version
NHTSA overall
—
Not rated by NCAP
Safety recalls
5campaigns
Latest Oct 2015
Owner complaints
197
Top: engine and engine cooling
Fuel cost / yr
$3,450est.
EPA estimate, best version
01 —Recalls

Safety recalls

5 NHTSA campaigns · applies to some vehicles, check your VIN

Steering

Free remedy

Dorman Products, Inc. (Dorman) is recalling certain model Dorman Steering Shafts, part number 425-359, Solutions Steering Shafts, part number 7-0359, and OE Solutions Steering Shafts, part number 425-359, manufactured April 17, 2014, to September 28, 2015. These aftermarket replacement steering shafts are sold for use in 1995-2002 Ford Crown Victoria, Mercury Grand Marquis, and Lincoln Town Car vehicles. These steering shafts may separate during operation if the integral fastener is loose or missing and if the interfacing vehicle shaft is compressed in length.

SteeringReported Oct 6, 2015NHTSA 15E082000

Fuel system, gasoline

Free remedy

CERTAIN AFTERMARKET FUEL FILTERS SOLD UNDER THE PUROLATOR BRAND NAME, P/N F65277, SHIPPED FROM JANUARY 16 THROUGH JUNE 2, 2006, FOR USE ON THE ABOVE LISTED PASSENGER VEHICLES. DUE TO INCORRECT DESIGN, THE QUICK CONNECTORS MAY NOT FULLY SEAT WITH THE TUBE INTERFACE, EVEN THOUGH THE PERSON MAKING THE CONNECTION MAY BELIEVE THAT THE QUICK CONNECTOR IS FULLY ATTACHED.

Fuel system, gasolineReported Jun 13, 2006NHTSA 06E056000

Equipment: integrated jack

Free remedy

VEHICLE DESCRIPTION: PASSENGER VEHICLES. THESE VEHICLES HAVE JACKING INSTRUCTIONS WHICH, IF FOLLOWED, COULD CAUSE THE VEHICLE OPERATOR TO PLACE THE JACK ON A FRAME WELD WHEN ATTEMPTING TO RAISE A REAR WHEEL. IF THE VEHICLE IS JACKED UP WITH THE JACK PLACED ON THE FRAME WELD AND IF THE VEHICLE IS FREE TO ROLL (WHEELS NOT BLOCKED OR CHOCKED), THE JACK COULD YIELD AND THE VEHICLE MAY DROP SUDDENLY.

EquipmentReported Jul 18, 2000NHTSA 00V200000
See all 5 recalls with remedies
Data from NHTSA Recalls API · synced Nov 9, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

197 complaints filed with NHTSA · Sep 1998 – Jul 2023
  1. Engine and engine cooling29
  2. Exterior lighting20
  3. Steering19
  4. Suspension19
  5. Electrical system18
  6. Vehicle speed control17
  7. Service brakes, hydraulic13
  8. Tires12
  9. Power train11

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each Grand Marquis model year we’ve synced.

View as table
Model yearNHTSA complaints
1996275
1997372
1998177
1999197
2000187
2001183
2002106
2003395
2004360
2005488
2006143
200796
200880
200926
201025
20119
Crashes reported
22
Fires reported
3
Injuries reported
19
Deaths reported
0
Data from NHTSA Complaints API · synced Nov 9, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Engine and engine cooling

29 reports1 fire
“The contact owns a 1999 Mercury Grand Marquis. The contact stated that the vehicle had a leaking intake manifold. The vehicle was taken to an independent mechanic and diagnosed that the intake manifold needed to be replaced. The vehicle was not repaired. The dealer and manufacturer were made aware of the failure but informed the contact that there was no recall associated with the VIN. The failure mileage was approximately 120,000.”
Owner complaint to NHTSAFiled Jan 25, 2022Engine and engine coolingODI 11448881

Exterior lighting

20 reports
“MY HEADLIGHTS, HAZARDS, AND TURN SIGNALS ALL JUST RANDOMLY WENT OUT WHILE DRIVING. THEY HAVE NOT COME BACK ON SINCE. AFTER READING FORUMS I BELIEVE IT TO BE THE LCM BUT MY YEAR MODEL IS NOT INCLUDED IN THE RECALL. I BELIEVE THIS ISSUE DATES BACK FARTHER THAN 2000 AND FORD SHOULD STEP UP AND RECALL MORE OF THESE LCM COMPONENTS.”
Owner complaint to NHTSAFiled Jul 18, 2020Exterior lightingODI 11340109

Steering

19 reports1 crash
“WHILE DRIVING PINS IN STEERING COULM BECAME LOSSE AND CAUSED CAR TO SHUT OFF WHILE AT STOP LIGHT HAD TO TOW TO SERVICE SHOP; HAD FOUND COMMON FORD ISSUE WITH LOOSE STEERING PINS IN 1999 MERCURY GRAND MARQUIS SHOULD BE RECALL VERY DANGEROUS TO HAPPEN TO SOME CAST IS $300 PLUS TAX AND TOW I FEEL FORD OUWES ME TO THIS THAT BUILT THIS CAR NOT ME ITS COST AS MUCH AS A DECENT USED CAR TO DAY I WOULD LIKE FORD TO OFFFER ME HELP; WITH THERE PAST ISSUES WITH CARS”
Owner complaint to NHTSAFiled Nov 8, 2019SteeringODI 11278876
All 1999 Grand Marquis problemsSend a problem to a mechanic on findmechanic.ai
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026
04 —Key specs

Engines, transmissions & drive

1 version rated by the EPA
EPA class
Large Cars
Engines
4.6L 8-cyl
Transmissions
Automatic 4-spd
Drive
Rear-Wheel Drive
Fuel
Regular Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 9, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
Grand Marquis
Auto 4-spd, 8 cyl, 4.6 L · Rear-Wheel Drive
152218$3,450494
  • Grand Marquis
    Auto 4-spd, 8 cyl, 4.6 L
    15 city · 22 hwy · $3,450/yr
    18
    mpg comb.
Estimate your fuel costCost of ownership
Data from EPA fueleconomy.gov · synced Nov 9, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

1 tested variant
NHTSA has not published 5-Star Safety Ratings for the 1999 Mercury Grand Marquis as of Nov 9, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 9, 2026Vehicle 3943
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

1999 Grand Marquis questions

How many recalls does the 1999 Mercury Grand Marquis have?

5 safety recalls as of Nov 9, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.

What are the most common 1999 Mercury Grand Marquis problems?

Owners filed 197 complaints with NHTSA. The most-cited components are engine and engine cooling (29), exterior lighting (20), steering (19). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 1999 Mercury Grand Marquis get?

The EPA rates the 1999 Mercury Grand Marquis at 18 mpg combined, depending on engine and drivetrain (1 version rated).

Data from NHTSA & EPA · synced Nov 9, 2026