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#BS-1999-MERGRA-1F231999 Mercury Grand Marquis
Based on reports from 202 owners and 5 recalls for this exact model.
Preliminary Verdict
Think Twice
Based on 202 complaints, 21 crashes, 2 fires, and 5 recalls.
Top reported problems
cracked intake manifold
3 complaints β’ Severity 7.3/10
engine overheating
1 complaints β’ Severity 6/10
courtesy lights come on and off
1 complaints β’ Severity 10/10
Preview: What's in your full report
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Mechanic Inspection Checklist
18 owners reported engine issues β failures commonly reported around 103K miles.
Failure Timeline by Mileage
Peak failure range: 90β120K miles (19 reports) β’ Median: 103K miles
30,000-Mile Cost Projection
Best Case
Most Likely
Worst Case
Top cost driver: Engine (18 reports).
Also in your report
Owner Intelligence
AI-synthesized themes from real complaints
Buyer Lot Checklist
Questions, test drive checks, walk-away triggers
Negotiation Talking Points
Data-backed dollar deductions
Buy / Skip Verdict
Final recommendation with conditions
Where the complaints fall
1999 Mercury Grand Marquis: Known Issues & Problem Areas
Engine Issues
Engine complaints account for 9% of all reports filed for the 1999 Mercury Grand Marquis, with 18 owners filing complaints with NHTSA. The median mileage at time of complaint is 103,000 miles, suggesting issues tend to surface around the 103K-mile mark.
Lights Issues
Lights complaints account for 6% of all reports filed for the 1999 Mercury Grand Marquis, with 13 owners filing complaints with NHTSA. Owners should pay attention to lights-related symptoms during test drives and pre-purchase inspections.
Speed Control Issues
Speed Control complaints account for 4% of all reports filed for the 1999 Mercury Grand Marquis, with 8 owners filing complaints with NHTSA. Owners should pay attention to speed control-related symptoms during test drives and pre-purchase inspections.
Exterior Lighting:headlights Issues
Exterior Lighting:headlights complaints account for 3% of all reports filed for the 1999 Mercury Grand Marquis, with 7 owners filing complaints with NHTSA. Owners should pay attention to exterior lighting:headlights-related symptoms during test drives and pre-purchase inspections.
Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.
Complaint trend by year
Complaints filed with NHTSA by year for the 1999 Mercury Grand Marquis. Recent trend: stable.



Don't negotiate blind β know what this car costs to own
Repair costs β’ Negotiation scripts β’ Mechanic checklist β’ Buy/skip verdict
Recall History (5 recalls)
SEAT BELTS:FRONT:ANCHORAGE
VEHICLE DESCRIPTION: PASSENGER VEHICLES USING AFTERMARKET DRIVER'S SEAT BELT ASSEMBLIES THAT WERE SOLD BY FORD PARTS DEPARTMENTS FROM JANUARY 1, THROUGH JUNE 13, 2000. THESE SEAT BELT ASSEMBLIES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 209, "SEAT BELT ASSEMBLIES." THE EQUIPMENT INVOLVED IS SERVICE STOCK SEAT BELT ASSEMBLIES, MODEL NOS. H 9977, H 9979, T 9063, AND T 9217, BUILT BY TRW VEHICLE SAFETY SYSTEMS, INC. (TRW) MANUFACTURED FROM JUNE 1, 1998 THROUGH MAY 21, 2000. SOME OF THESE SEAT BELT ASSEMBLIES MAY HAVE BEEN INSTALLED AS SERVICE REPLACEMENT EQUIPMENT ON THE VEHICLES INVOLVED IN THE RECALL.
SEAT BELTS:FRONT:ANCHORAGE
VEHICLE DESCRIPTION: PASSENGER VEHICLES USING AFTERMARKET FRONT PASSENGER SIDE SEAT BELT ASSEMBLIES THAT WERE SOLD BY FORD PARTS DEPARTMENTS FROM JANUARY 1, THROUGH JUNE 13, 2000. THESE SEAT BELT ASSEMBLIES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 209, "SEAT BELT ASSEMBLIES." THE EQUIPMENT INVOLVED IS SERVICE STOCK SEAT BELT ASSEMBLIES, MODEL NOS. H 9977, H 9979, T 9063, AND T 9217, BUILT BY TRW VEHICLE SAFETY SYSTEMS, INC. (TRW) MANUFACTURED FROM JUNE 1, 1998 THROUGH MAY 21, 2000. SOME OF THESE SEAT BELT ASSEMBLIES MAY HAVE BEEN INSTALLED AS SERVICE REPLACEMENT EQUIPMENT ON THE VEHICLES INVOLVED IN THE RECALL.
EQUIPMENT:MECHANICAL:INTEGRATED JACK/LEVELER/STABILIZER
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.
FUEL SYSTEM, GASOLINE
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.
STEERING
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.
Recall severity analysis & seller scripts
The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.
The worst model year for the Mercury Grand Marquis is the 1997 β worth knowing if you're cross-shopping years. The biggest problem area is lights.
1999 Mercury Grand Marquis vs. Class Average (Large Cars)
This vehicle
202
Class avg
249
Complaint volume is roughly in line with other large cars vehicles from 1999.
Complaint counts correlate with sales volume β popular vehicles naturally generate more reports. The full report normalizes for this.
About this data
NHTSA Complaints
Federal database of owner-filed safety complaints. 202 records for this vehicle.
NHTSA Recalls
Manufacturer-issued safety recalls. 5 recalls found for this vehicle.
Repair Cost Data
Real-world repair costs from owner reports and independent databases.
Other Mercury Grand Marquis Model Years
1999 Mercury Grand Marquis: Frequently Asked Questions
What is the most common problem with the 1999 Mercury Grand Marquis?
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Get the Full 1999 Mercury Grand Marquis Report
10 sections of AI analysis based on 202 owner reports. Know before you buy.