← New search

1984 Mercury Cougar

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

About this comparison →

How this year compares

Owner complaints by model year

Other model years Selected year
Compare all Cougar years →

Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 1 of 17 reports include usable mileage. There isn’t enough coverage to show a useful chart.

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 7 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Seat Belts. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports2 fire reports0 injury reports

What owners actually said

17 reports
41,000 miles · Jan 6, 2005
Vehicle Speed ControlCrash

WHILE RELEASING THE BRAKE PEDAL, THE VEHICLE ACCELERATED UNCONTROLLABLY. THE CONSUMER WAS NOT ABLE TO MAINTAIN CONTROL OF THE VEHICLE AND CRASHED INTO A TREE. THE CONSUMER WILL CONTACT THE DEALER IN THE NEAR FUTURE. THE CAUSE HAS NOT BEEN DETERMINED AT THIS TIME. PLEASE PROVIDE FURTHER DETAILS. *JB THE CONSUMER STATED TH…

Read full complaint

WHILE RELEASING THE BRAKE PEDAL, THE VEHICLE ACCELERATED UNCONTROLLABLY. THE CONSUMER WAS NOT ABLE TO MAINTAIN CONTROL OF THE VEHICLE AND CRASHED INTO A TREE. THE CONSUMER WILL CONTACT THE DEALER IN THE NEAR FUTURE. THE CAUSE HAS NOT BEEN DETERMINED AT THIS TIME. PLEASE PROVIDE FURTHER DETAILS. *JB THE CONSUMER STATED THAT THE SUDDEN ACCELERATION LEFT TIRE MARKS ON THE DRIVEWAY. *TC

NHTSA ODI #10099244

Mileage unknown · Sep 25, 2001
Electrical SystemEngine And Engine Cooling

VEHICLE STALLED AT ANY SPEED. HAS STALLED 4 TIMES SINCE PURCHASED 4 WEEKS AGO. INDEPENDENT MECHANIC SAID THAT TFI MODULE AND IGNITION SWITCH NEEDED TO BE REPLACED. ALSO THESE COMPONENTS CAUSED ELECTRICAL DAMAGE TO VEHICLE.*AK

NHTSA ODI #896821

Mileage unknown · Nov 20, 2000
Electrical System

THE IGNITION SWITCH IS TEMPERAMENTAL AND THE VEHICLE IS STALLING. *SLC

NHTSA ODI #557769

Mileage unknown · Sep 13, 2000
Engine And Engine Cooling

VERY RECENTLY I FOUND THAT THE NHTSA HAS BEEN INVESTIGATING PROBLEMS WITH MANY FORD VEHICLES FROM THE 80'S, DUE TO STALLING PROBLEMS. I OWNED A 1984 MERCURY COUGAR FOR 2 YEARS AND PUT THOUSANDS OF DOLLARS INTO THIS VEHICHLE WITH NO SUCCESS. I KEPT ALL MY RECEIPTS KNOWING THAT SOME DAY THE PROBLEM WOULD COME OUT. I WISH TO BE …

Read full complaint

VERY RECENTLY I FOUND THAT THE NHTSA HAS BEEN INVESTIGATING PROBLEMS WITH MANY FORD VEHICLES FROM THE 80'S, DUE TO STALLING PROBLEMS. I OWNED A 1984 MERCURY COUGAR FOR 2 YEARS AND PUT THOUSANDS OF DOLLARS INTO THIS VEHICHLE WITH NO SUCCESS. I KEPT ALL MY RECEIPTS KNOWING THAT SOME DAY THE PROBLEM WOULD COME OUT. I WISH TO BE PART OF THESE COMPLAINTS AGAINST FORD AND HOPES OF GETTING MONEY BACK DUE TO FORDS MISTAKE WHEN ASSEMBLING THE VEHICLES. THE MERCURY COUGAR STARTED STALLING ALMOST IMMEDIATELY, BUT GOT WORSE AS TIME WENT ON. DATES INVOLVED REPAIRS WERE FROM JANUARY OF 1989 UP TO APRIL OF 1990. FINALLY IN AUGUST OF 1990 I TRADED THE VEHICLE IN, AFTER MANY SITUATIONS OF ALMOST BAD ACCIDENTS DUE TO THE VEHICLE STALLING WHEN STOPPING OR JUST DRIVING DOWN THE ROAD. THE VEHICHLE WOULD JUST SHUT OFF AND IT WOULD TAKE NUMOROUS TRIES TO GET IT STARTED OR I WOULD HAVE TO GET IT TOWED. THE STRESS AND CONCERN OF MY TWO YOUNG CHILDREN WAS MORE THAN I COULD HANDLE. I FEEL FORD MOTOR COMPANY SHOULD TAKE RESPONSIBILITY IN ALL THERE MISTAKES. NO MATTER WHAT IT COSTS, TOO MANY PEOPLE HAVE LOST LIVES DUE TO THIS ENORMOUS COMPANY. *AK

NHTSA ODI #731319

Mileage unknown · Jul 6, 2000
Seat BeltsService Brakes, Hydraulic

WHEN APPLYING BRAKES IN EMERGENCY STOPPING SEAT BELTS DO NOT LOCK UP. ALSO, A BUMPING AND GRINDING NOISE OCCURS IN THE FRONT END OF THE VEHICLE AND THE ENGINE VIBRATES, CAUSE UNKNOWN. PLEASE GIVE ANY FURTHER DETAILS.*AK

NHTSA ODI #864828

Mileage unknown · May 5, 1999
Seat Belts

SEAT BELT BUCKLE HOUSING CRACKED. THE DEALER HAS BEEN NOTIFIED. *AK

NHTSA ODI #837491

Mileage unknown · Apr 16, 1999
Steering

ON SEVERAL OCCASIONS THE RACK AND PINION FAILED (WORN OUT), CAUSING POOR STEERING ABILITY, RESULTING IN REPAIR. *YC

NHTSA ODI #545036

Mileage unknown · Oct 5, 1998
Electrical SystemEngine And Engine CoolingUnknown Or Other

WHILE DRIVING THE VEHICLE GIVES NO PRIOR WARNING AND CUTS COMPLETELY OFF. WHEN TRYING TO START BACK UP THE BATTERY LIGHT/ ENGINECHECK LIGHT KEEP COMING ON. CONTACTED DEALER . *AK

NHTSA ODI #828571

Mileage unknown · Feb 24, 1998
Engine And Engine Cooling

VEHICLE CONTINUOUSLY STALLS AND IS DIFFICULT TO START.

NHTSA ODI #531316

Mileage unknown · Jun 3, 1997
Electrical System

VEHICLE IGNITION SWITCH WAS MELTED WHEN OWNER TRIED TO START VEHICLE. *AK

NHTSA ODI #812728

Official recalls

1

83V134000 · Seat Belts:front:anchorage

Dec 20, 1983

THE BOLTS THAT ATTACH THE D-SHAPED RING FOR THE SHOULDER BELT ARE INADEQUATELY SUPPORTED BY THE MATERIAL IN WHICH THEY ARE MOUNTED. THE ATTACHMENT DOES NOT COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 210, "SEAT BELT ASSEMBLY ANCHORAGES".

Consequence & remedy

Consequence: Not supplied

Remedy: DEALERS WILL INSTALL NEW ATTACHING HARDWARE TO IMPROVE THE STRENGTH OF THE MOUNTING.

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

2

PE89039 · Parking Brake Failure

Opened Feb 9, 1989 · Closed Jun 13, 1989

Status: closed (inferred from source dates) · Parking Brake

SUMMARY:THE SPRING UNDER INVESTIGATION CAUSES THE LATCHING PAWL TOENGAGE THE TEETH OF THE RATCHET WHEREBY THE PARKING BRAKE IS RETAINEDIN THE APPLIED POSITION.IF THE SPRING FAILS, THE PEDAL FOLLOWS THEOPERATORS FOOT BACK UP INTO THE RELEASED POSITION.FORD STATES THAT IT ISSUED THE BULLETIN IN ORDER TO INFORM DEALERSTHAT THE SPRING WAS NEWLY AVAILABLE AS A SEPARATE PART.PREVIOUSLY,IT WAS NECESSARY TO REPLACE THE ENTIRE PARKING BRAKE CONTROL ASSEMBLY INORDER TO OBTAIN A NEW SPRING.SINCE THE FAILURE OF THE SPRING WILL NOT CAUSE THE PARKING BRAKE TOSUDDENLY AND UNEXPECTEDLY RELEASE AND SINCE THERE IS ADEQUATE WARNINGOF THE FAILURE, NO SAFETY DEFECT TREND WAS FOUND.===

EA86010 · Seatback Failure

Opened Mar 26, 1986 · Closed Jul 28, 1989

Status: closed (inferred from source dates) · Seats

SUMMARY OF INFORMATION FROM MANUFACTURER:FORD BELIEVES THAT THE AL-LEGED DEFECT ONLY OCCURS IN A SMALL NUMBER OF THE SUBJECT VEHICLES ANDRECALLED ABOUT 195,732 1984 TEMPO/TOPAZ VEHICLES IN JUNE 1986.ANALYSIS: VEHICLES POTENTIALLY INVOLVED INCLUDE TEMPO/TOPAZ, ESCORT/LYNX/EXP, MUSTANG/CAPRI, LTD/MARQUIS, AND THUNDERBIRD/COUGAR.FORD SOLD ABOUT 110,000 REPLACEMENT MIO BOLTS, MAINLY FOR 1983 AND 1984MODELS. LOW CLAMPING FORCE APPEARS TO BE A LARGE PART OF THE PROBLEM.FORD INCREASED THE TORQUE REQUIREMENTS AND REQUIRED THE USE OF A MANUALTORQUE TOOL IN MARCH AND SEPTEMBER 1985 PRODUCTION CHANGES. 1987 MODELSWILL BE PRODUCED WITH A LONGER M10 BOLT AND A NUT TO INCREASE AND MAIN-TAIN CLAMPING FORCE. BOLTS WERE FORMERLY SELF TAPPING. REPORTS LISTEDABOVE SPECIFICALLY STATE THAT THE BOLT BROKE. NONE REFER SIMPLY TOSEAT BACK COLLAPSE ALONE.STATUS:FORD REPLY TO ODI IR DATED 2/2/87.FORD RECALLED 195,7321984 TEMPO/TOPAZ VEHICLES IN JUNE 1986 (86V-082). ANALYZING REPONSE,MONITORING CANADIAN PROGRESS. RESPONSE TO 4/6/87 LETTER TO FORDRECEIVED 7/15/87. WILL PROBABLY CLOSE AFTER CANADA COMPLETES THEIRACTIONS.===