Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
90–25K
2725–50K
3750–75K
2675–100K
23100–150K
7150K+
129 reports with mileage · 325 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Electrical System. Review the 99 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Service Brakes, Hydraulic. Review the 72 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Engine And Engine Cooling. Review the 67 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
23 crash reports3 fire reports21 injury reports
What owners actually said
454 reports
95,000 miles · Jul 25, 2006
Visibility
THE SUNROOF ON MY 1999 MERCURY COUGAR HAS STOPPED WORKING. IT STOPPED IN THE RAISED POSITION AND UPON INVESTIGATING THE PROBLEM IT SEEMS THAT THE PLASTIC PIECES ON THE TRACK HAVE BROKEN. WHILE RESEARCHING THE PROBLEM I DISCOVERED THAT THIS IS A KNOWN PROBLEM AND CAN BE DANGEROUS BECAUSE THERE HAVE BEEN MANY REPORTS OF THE SUNR…
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THE SUNROOF ON MY 1999 MERCURY COUGAR HAS STOPPED WORKING. IT STOPPED IN THE RAISED POSITION AND UPON INVESTIGATING THE PROBLEM IT SEEMS THAT THE PLASTIC PIECES ON THE TRACK HAVE BROKEN. WHILE RESEARCHING THE PROBLEM I DISCOVERED THAT THIS IS A KNOWN PROBLEM AND CAN BE DANGEROUS BECAUSE THERE HAVE BEEN MANY REPORTS OF THE SUNROOF PANEL ACTUALLY FLYING OFF THE CAR WHILE MOVING. FORD/MERCURY KNOWS THIS WAS A PROBLEM BECAUSE THEY CHANGED THE PLASTIC PIECES TO ALUMINUM AFTER THIS MANUFACTURE YEAR. IT IS A SHAME THAT SOMEONE DOESN'T MAKE THIS COMPANY FIX THE PROBLEM BEFORE SOMEONE GETS HURT OR KILLED BY ONE OF THESE SUNROOF'S MALFUNCTIONING AND FLYING OFF THE CAR OR FALLING ON SOMEONE WHILE TRYING TO GET IT TO CLOSE. YOUR ATTENTION IN THIS MATTER WOULD BE APPRECIATED. *JB
NHTSA ODI #10163436
78,000 miles · Jul 19, 2006
Visibility
SUNROOF FAILED TO CLOSE ON 99 MERCURY COUGAR LOOKED ON THE WEB AND I AM NOT ALONE HTTP://WWW.COUGARSUNROOF.COM/. *NM
NHTSA ODI #10162917
53,900 miles · Jul 19, 2006
Visibility
FAULTY EQUIPMENT IN THE SUNROOF ASSEMBLY (PLASTIC PIECES THAT HOLD THE SUNROOF TO THE TRACK GUIDES). THESE PIECES ALSO TAKE A CONSIDERABLE AMOUNT OF "STRESS" WHEN THE SUNROOF IS IN THE OPEN POSITION. THEY ARE SUPPORTING MOST OF THE WEIGHT OF THE SUNROOF ITSELF. AND ALSO ON MY CAR, LEFT SIDE TRACK IS BROKEN AND JAMMED. TAKE A L…
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FAULTY EQUIPMENT IN THE SUNROOF ASSEMBLY (PLASTIC PIECES THAT HOLD THE SUNROOF TO THE TRACK GUIDES). THESE PIECES ALSO TAKE A CONSIDERABLE AMOUNT OF "STRESS" WHEN THE SUNROOF IS IN THE OPEN POSITION. THEY ARE SUPPORTING MOST OF THE WEIGHT OF THE SUNROOF ITSELF. AND ALSO ON MY CAR, LEFT SIDE TRACK IS BROKEN AND JAMMED. TAKE A LOOK AT WWW.COUGARSUNROOF.COM PLEASE TAKE THE TIME TO READ SOME OF THE COMPLAINTS. THEY FOCUS AROUND THE SAME PROBLEM, AS I HAVE DESCRIBED ABOVE. I THINK A RECALL SHOULD BE ISSUED FOR ANY 1999 AND UP MERCURY COUGAR THAT HAVE SUNROOFS. *NM
NHTSA ODI #10162859
64,100 miles · Jul 19, 2006
Electrical System
MOST RECENT INFORMATION IS GIVEN. HAD TO HAVE ALTERNATOR REPLACED TWICE WITH IN A 7-8 MONTH PERIOD DUE TO A RECALL ISSUED BY FORD ON FEBRUARY 6, 2001. NHTSA CAMPAIGN ID NUMBER: 01V031000. I HAD 2 DEALERSHIPS SEARCH FOR RECALLS USING MY VIN, NO RECALLS CAME UP. *NM
NHTSA ODI #10162851
Mileage unknown · Jul 11, 2006
Electrical SystemEngine And Engine CoolingCrashInjury
1. CAR BEGAN TO LOSE POWER AND THE STEERING WHEEL BEGAN TO LOCK UP AND LIGHTS BEGAN FLICKERING ON THE DASH. 2. THE CAR STALLED IN THE FAST LANE ON A BUSY FREEWAY. THE CONSEQUENCE WAS A SMALL TRUCK REAR-ENDED THE BACK OF THE CAR AND IT WAS TOTALED. ONE PERSON HAD BUSTED LIP IN TRUCK AND ONE IN THE CAR HAD BUSTED FOREHEAD AND …
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1. CAR BEGAN TO LOSE POWER AND THE STEERING WHEEL BEGAN TO LOCK UP AND LIGHTS BEGAN FLICKERING ON THE DASH. 2. THE CAR STALLED IN THE FAST LANE ON A BUSY FREEWAY. THE CONSEQUENCE WAS A SMALL TRUCK REAR-ENDED THE BACK OF THE CAR AND IT WAS TOTALED. ONE PERSON HAD BUSTED LIP IN TRUCK AND ONE IN THE CAR HAD BUSTED FOREHEAD AND BLACKENED EYES WITH BACK INJURIES AND THE OTHER ONE HAD BACK AND STOMACH EXTREME PAINS AND LEGS. 3. NOTHING COULD BE DONE AT THIS POINT-THE CAR ALWAYS HAD PROBLEMS. TOO BAD, I WAS NOT AWARE OF ALL OF THE RECALLS--MAYBE THAT WOULD NOT HAVE HELPED EITHER. *NM
NHTSA ODI #10162066
56,000 miles · Jun 22, 2006
Visibility
THE ISSUE IS WITH THE DESIGN FLAW FOR A SUNROOF ON THE 1999 FORD MERCURY COUGAR, WHICH HAPPENED ABOUT A MONTH AGO WHEN TRYING TO OPEN ONE DAY. I BOUGHT THE CAR WITH LOW MILEAGE OF 53000, SUNROOF ONE OF MAIN REASON FOR PURCHASE. DID SOME RESEARCH, THERE IS GREAT WEBSITE THAT SHOWS THOUSAND PLUS OWNERS WHO HAVE HAD SAME PROBLEM…
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THE ISSUE IS WITH THE DESIGN FLAW FOR A SUNROOF ON THE 1999 FORD MERCURY COUGAR, WHICH HAPPENED ABOUT A MONTH AGO WHEN TRYING TO OPEN ONE DAY. I BOUGHT THE CAR WITH LOW MILEAGE OF 53000, SUNROOF ONE OF MAIN REASON FOR PURCHASE. DID SOME RESEARCH, THERE IS GREAT WEBSITE THAT SHOWS THOUSAND PLUS OWNERS WHO HAVE HAD SAME PROBLEM AND NO HELP FROM FORD. PROBLEM IS SMALL PLASTIC PIECE IN DESIGN OF SUNROOF CANNOT SUPPORT ROOF, THEREFORE BREAKS AND ENTIRE ROOF MUST BE REPLACED EVEN THOUGH PART COST A FEW DOLLARS. THE COST TO FIX VEHICLE FROM FORD WITH LABOR HAS BEEN QUOTED BETWEEN 1500-2500 DOLLARS, UNBELIEVABLE FOR DESIGN FLAW. ALSO CAUSES SAFETY ISSUE FOR SOME AS SUNROOF IS LOOSE ON TOP OF ROOF AND WILL NOT SHUT ALL THE WAY FOR MANY OWNERS, BUT SINCE NO INJURIES HAVE BEEN REPORTED YET, FORD HAS NOT RECALLED FAULTY DESIGN. MY ONLY REQUEST IS THAT SOMEONE FROM AGENCY TAKES A LOOK AT THE THIS WEBSITE AS THE ADMINISTRATOR HAS DONE A TERRIFIC JOB EXPLAINING THE PROBLEM, THE UNFAIR TREATMENT FROM FORD, AND ALSO COMPLIES A VERY LONG LIST OF OWNERS WHO HAVE ALL HAD THE EXACT SAME PROBLEM. THE WEBSITE WILL ALLOW THE AGENCY A VERY GOOD UNDERSTANDING OF THE ISSUE AND HOPEFULLY TAKE ACTION FOR THOSE WHO FEEL CHEATED BY THE COMPANY (I WAS DIRECTED TO THE NHTSA FROM THAT SITE). PLEASE REVIEW THIS WEBSITE AS IT WILL EXPLAIN ALL THAT IS NEEDED FOR THE COMPLAINT AND HOPEFULLY ALLOW THE AGENCY TO TAKE SOME ACTION FOR THE CONSUMERS. HTTP://WWW.COUGARSUNROOF.COM/FAQS.PHP AND HTTP://WWW.COUGARSUNROOF.COM/INDEX.PH. *JB
NHTSA ODI #10160441
Mileage unknown · Jun 20, 2006
Electrical SystemEngine And Engine CoolingEquipment
I WOULD LIKE TO COMPLAIN ABOUT MY COUGAR. I CANNOT PASS THE IL. EMISSIONS TESTS, DUE TO THE FACT THAT THE O2 SENSORS ARE DEFECTIVE. MY ENGINE LIGHT IS CONSTANTLY ON. I HAVE HAD MY CAR SERVICED FOR THE ENGINE LIGHT, ALONE, 8 DIFFERENT TIMES. EIGHT! THIS IS INCREDIBLE. ALSO, MY CAR MAKES A LOUD SCREECHING NOISE WHEN I ATTEMPT…
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I WOULD LIKE TO COMPLAIN ABOUT MY COUGAR. I CANNOT PASS THE IL. EMISSIONS TESTS, DUE TO THE FACT THAT THE O2 SENSORS ARE DEFECTIVE. MY ENGINE LIGHT IS CONSTANTLY ON. I HAVE HAD MY CAR SERVICED FOR THE ENGINE LIGHT, ALONE, 8 DIFFERENT TIMES. EIGHT! THIS IS INCREDIBLE. ALSO, MY CAR MAKES A LOUD SCREECHING NOISE WHEN I ATTEMPT TO START IT. -IF IT STARTS AT ALL.- I HAVE HAD MY STARTER REPLACED TWICE. TWICE!!! THIS CAR IS A LEMON. NOTHING BUT A LEMON. HOW COULD MERCURY SALE SUCH CRAP AND GET AWAY WITH IT. MY DRIVERS' LICENSE WILL BE SUSPENDED BECAUSE I CANNOT PASS THE EMISSIONS TEST. IF I CAN EVEN GET MY CAR TO THE TESTING FACILITY. I HAVE HAD THE ALTERNATOR CHANGED, THE FUEL PUMP, THE ELECTRICAL WIRING CHANGED, SUNROOF, TURNING SIGNAL, EVEN THE RADIO WAS DEFECTIVE. I SINCERELY HOPE THAT THERE IS A CLASS-ACTION LAWSUIT AGAINST MERCURY, BECAUSE I WILL BE THE FIRST ONE IN LINE TO SUE. *NM *TR
NHTSA ODI #10160273
Mileage unknown · Jun 18, 2006
Visibility
1999 MERCURY COUGAR SUNROOF BROKE AND THE COST OF REPAIR IS UNBELIEVABLE! I HAVE SEEN MANY WEBSITES WITH THE SAME COMPLAINT. THOUSANDS OF COMPLAINTS. SOMETHING HAS GOT TO BE DONE. THERE HAS TO BE SOMETHING WRONG WHEN ALL THESE SUNROOFS ARE BREAKING CONSTANTLY. *NM
NHTSA ODI #10160107
80,836 miles · Jun 15, 2006
Fuel System, Gasoline
DT*: THE CONTACT STATED THE VEHICLE HESITATED, STALLED, LOST POWER AND BACKFIRED WHEN THE FUEL TANK REACHED A LEVEL OF THREE QUARTERS TO ONE HALF FULL. THE VEHICLE RESTARTED IMMEDIATELY AFTER IT STALLED. THE CONTACT DISCOVERED NHTSA RECALL 04V421000, CONCERNING THE FUEL SYSTEM ONLINE. THE VIN WAS NOT INCLUDED IN THE RECALL.
NHTSA ODI #10159893
200 miles · Jun 8, 2006
StructureInjury
1999 MERCURY COUGAR LEAKS WATER INTO HATCH AREA DIRECTLY ONTO THE INTERIOR EXPOSED ELECTRICAL WIRING AND CONNECTIONS FOR TAIL LIGHTS AND HATCH RELEASE. DEALERSHIP CANNOT DETERMINE SOURCE OF LEAK AND THEREFORE CANNOT REPAIR. MERCURY WILL NOT RELEASE BLUEPRINTS OF SHEET METAL LAYOUT TO HELP IN DETERMINING WHERE WATER LEAK MIGHT …
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1999 MERCURY COUGAR LEAKS WATER INTO HATCH AREA DIRECTLY ONTO THE INTERIOR EXPOSED ELECTRICAL WIRING AND CONNECTIONS FOR TAIL LIGHTS AND HATCH RELEASE. DEALERSHIP CANNOT DETERMINE SOURCE OF LEAK AND THEREFORE CANNOT REPAIR. MERCURY WILL NOT RELEASE BLUEPRINTS OF SHEET METAL LAYOUT TO HELP IN DETERMINING WHERE WATER LEAK MIGHT BE ORIGINATING. NEITHER DID MERCURY COVER DIAGNOSIS AND WILL NOT COVER REPAIR EVEN IF PROBLEM SOURCE WAS IDENTIFIED. SIGNIFICANT WATER INSIDE THE VEHICLE AND DIRECTLY ON EXPOSED ELECTRICAL COMPONENTS COULD EASILY RESULT IN A CATASTROPHIC FIRE HAZARD AND LOSS OF LIFE. *JB
ON CERTAIN PASSENGER VEHICLES, CONTAMINATION OF THE FILTER IN THE FUEL DELIVERY MODULE (FDM) CAN REDUCE, AND EVENTUALLY BLOCK, THE FLOW OF FUEL TO THE ENGINE.
Consequence & remedy
Consequence: THIS MAY CAUSE ENGINE HESITATION, LOSS OF POWER, SURGING, AND OTHER SIMILAR SYMPTOMS. OVER TIME, THE FILTER MAY BECOME SUFFICIENTLY BLOCKED TO CAUSE THE ENGINE TO STALL, WHICH COULD RESULT IN A CRASH.
Remedy: THIS ACTION IS DEEMED A SAFETY IMPROVEMENT CAMPAIGN AND IS NOT BEING CONDUCTED UNDER THE SAFETY ACT. ALL OWNERS WILL BE NOTIFIED OF THE PROBLEM, AND DEALERS WILL REPLACE THE FDM WITH A NEW DESIGN AT NO CHARGE IF THE OWNER REPORTS THAT THE VEHICLE EXHIBITS ANY OF THE IDENTIFIED SYMPTOMS. THE FREE REPLACEMENT WILL BE AVAILABLE FOR A PERIOD OF 10 YEARS FOLLOWING THE ORIGINAL PURCHASE OF THE VEHICLE, WITH NO MILEAGE LIMIT. THE CAMPAIGN BEGAN ON APRIL 16, 2004. OWNERS SHOULD CONTACT FORD AT 1-800-392-3673.
ON CERTAIN MY 1996-1998 PASSENGER VEHICLES BUILT AT THE KANSAS CITY, CUAUTITLAN ASSEMBLY PLANTS OR ON MY 1999 PASSENGER VEHCLES BUILT AT THE AUTOMOTIVE ALLIANCE INTERNATIONAL ASSEMBLY PLANTS, THE ROUGH SURFACE OF THE HEATER BLOWER RESISTOR'S STAINLESS STEEL BLADES CAN DAMAGE THE COPPER SURFACE OF THE WIRING HARNESS CONNECTOR. THE DAMAGE COULD, OVER TIME, CAUSE INCREASED RESISTANCE IN THE CONNECTOR AND, DUE TO SUBSEQUENT TERMINAL RELAXATION, RESULT IN AN OPEN CIRCUIT CONDITION.
Consequence & remedy
Consequence: THE OPEN CIRCUIT COULD LEAD TO ELECTRICAL ARCING THAT COULD MELT THE CONNECTOR HOUSING MATERIAL CREASING THE POTENTIAL FOR A FIRE.
Remedy: DEALERS WILL INSTALL A NEW HEATER BLOWER RESISTOR AND A NEW WIRE JUMPER HARNESS. OWNER NOTIFICATION BEGAN AUGUST 29, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT FORD AT 1-800-392-3673.
VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH 2.5L V6 ENGINES. THE BATTERY CABLE WAS MISROUTED AND ITS ATTACHMENT TO THE ALTERNATOR CABLE WAS UNDER-TORQUED. IF MISROUTED, THE CABLE COULD CONTACT THE POWER STEERING LINE AND THE INSULATION COULD WEAR, RESULTING IN AN ELECTRICAL SHORT.
Consequence & remedy
Consequence: THE SHORT COULD POTENTIALLY RESULT IN A FIRE, STALLING, OR A NO-START CONDITION.
Remedy: DEALERS WILL INSPECT THE BATTERY CABLE TO THE ALTERNATOR FOR DAMAGE AND, IF IT IS DAMAGED, WILL REPLACE THE CABLE. ADDITIONALLY, THE ROUTING OF THE CABLE WILL BE CORRECTED, AS NECESSARY, AND A ROUTING CLIP WILL BE ADDED. ALSO THE TORQUE ON THE ALTERNATOR ATTACHMENT OF THE CABLE WILL BE CHECKED AND, AS REQUIRED, WILL BE TIGHTENED TO SPECIFICATION. OWNER NOTIFICATION BEGAN MARCH 22, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT FORD AT 1-800-392-3673.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE BRAKE LAMP SWITCH TERMINALS COULD OVERHEAT.
Consequence & remedy
Consequence: THIS COULD CAUSE EITHER A LOSS OF BRAKE LAMP FUNCTION OR CONTINUOUSLY ILLUMINATED BRAKE LAMPS, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL INSTALL A NEW STOP LAMP EXTENSION HARNESS WITH BRONZE TERMINALS AT THE BRAKE LAMP SWITCH CONNECTOR, AND ALSO INSPECT THE BRAKE LAMP SWITCH FOR SIGNS OF OVERHEATING AND REPLACE, AS REQUIRED. OWNER NOTIFICATION BEGAN MARCH 22, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT FORD AT 1-800-392-3673.
VEHICLE DESCRIPTION: PASSENGER VEHICLES NOT EQUIPPED WITH THE ANTI-LOCK BRAKING SYSTEM (ABS). A PRESSURE CONSCIOUS REDUCING VALVE (PCRV) IN THE REAR BRAKES MAY BE SUBJECT TO CORROSION AND RESULT IN MALFUNCTION, WHEN OPERATED IN AREAS THAT USE SALT COMPOUNDS ON THE ROADWAY FOR DE-ICING OR DUST CONTROL.
Consequence & remedy
Consequence: IF BOTH PCRV'S MALFUNCTION, VEHICLE HANDLING COULD BE ADVERSELY AFFECTED DURING BRAKING AS A RESULT OF THE REAR WHEELS LOCKING, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL INSTALL IMPROVED PCRV'S IN THE REAR BRAKE SYSTEM. THIS RECALL WAS EXPANDED IN SEPTEMBER 2000 TO INCLUDE 1999 AND 2000 FORD CONTOUR, MERCURY MYSTIQUE AND COUGAR VEHICLES.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE DOOR LATCH MAY HAVE BEEN MANUFACTURED WITH A LATCH PAWL THAT HAS A COATING WHICH WILL SWELL IN HIGH HUMIDITY CONDITIONS. THE LATCH PAWL MAY THEN STICK IN THE OPEN OR UNLATCHED POSITION.
Consequence & remedy
Consequence: THE DOOR WOULD NOT LATCH WHEN CLOSED. IF THE VEHICLE IS DRIVEN IN THIS CONDITION, IT COULD POTENTIALLY RESULT IN THE DOOR OPENING WHILE THE VEHICLE IS IN MOTION.
Remedy: DEALERS WILL INSTALL A REVISED SIDE DOOR LATCH.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE ACCELERATOR CABLE MAY HAVE BEEN MANUFACTURED WITH A BURR ON OR NEAR THE END OF THE CABLE SLEEVE INTERIOR. THIS BURR COULD FRAY THE CORE WIRE RESULTING IN THE ACCELERATOR NOT RETURNING TO IDLE WHEN THE ACCELERATOR IS RELEASED.
Consequence & remedy
Consequence: THIS CONDITION CAN RESULT IN THE THROTTLE STICKING, BINDING, OR CAUSING HIGH ENGINE RPM.
Remedy: DEALERS WILL INSTALL A REVISED ACCELERATOR CABLE THAT HAS A FLARED CONDUIT SLEEVE END AND MOLDED ON END FITTING.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1
EA01001 · Blower Switch/resistor Or Wiring Harness
Opened Jan 5, 2001 · Closed Jul 31, 2001
Status: closed (inferred from source dates) · Electrical System
There is no summary currently available
Additional source detail variants (2)
Electrical System
There is no summary currently available
Electrical System
There is no summary currently available
1999 Mercury Cougar Problems, Complaints & Recalls | Skip That Year