IllustrationVEHICLE 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
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
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
Engine And Engine Cooling complaints
4 reportsVERY 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
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
VEHICLE CONTINUOUSLY STALLS AND IS DIFFICULT TO START.
Official recalls
183V134000 · 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
2PE89039 · 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.===